...FUNNEL CLOUDS POSSIBLE THROUGH 630 CDT THIS EVENING...


THERE HAVE BEEN SEVERAL REPORTS OF FUNNEL CLOUDS ACROSS THE AREA.

WHILE THERE ARE NO SHOWERS OR THUNDERSTORMS IN THE AREA...THESE

FUNNEL CLOUDS APPEAR TO BE ASSOCIATED WITH DEVELOPING CUMULUS

CLOUDS. THERE IS NO IMMEDIATE THREAT FOR A TORNADO. THE

ATMOSPHERIC CONDITIONS ARE NOT FAVORABLE FOR THE DEVELOPMENT OF A

TORNADO. THEREFORE...THESE FUNNEL CLOUDS WILL LIKELY NOT REACH THE

SURFACE.

AT 814 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM NEAR MOROCCO...MOVING EAST AT 25 MPH.
ONE HALF INCH DIAMETER HAIL...WINDS UP TO 50 MPH...AND HEAVY RAIN
ARE POSSIBLE WITH THIS STORM. ADDITIONAL THUNDERSTORMS WITH HEAVY
RAIN ARE EXPECTED TO MOVE ACROSS THE AREA THIS MORNING.
LOCATIONS IMPACTED INCLUDE...
MOROCCO...            BEAVER CITY...        BROOK...
PERCY JUNCTION...     FORESMAN...           SURREY...
COLLEGEVILLE...       RENSSELAER...         PLEASANT RIDGE...
MCCOYSBURG...         HANGING GROVE...      MOODY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...
GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND.  SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THIS STORM HAS PASSED.

.NOW...

AT 937 PM DOPPLER RADAR INDICATED A THUNDERSTORM OVER SUNNYSIDE...

MOVING EAST AT 35 MPH.


LOCATIONS THAT MAY BE AFFECTED INCLUDE...

FOX LAKE...FOX LAKE HILLS...LAKE VILLA...LAKE CATHERINE...ANTIOCH...

LINDENHURST...OLD MILL CREEK AND GRANDWOOD PARK.


GUSTY WINDS TO 40 MPH AND TORRENTIAL DOWNPOURS MAY ACCOMPANY THIS

...OVERNIGHT LIGHT SHOW...


ANYONE WHO OBSERVED THE STORM AS IT PASSED THROUGH THE AREA FROM

THE EVENING ON WEDNESDAY TO THE EARLY MORNING HOURS OF THURSDAY

CAN ATTEST THAT IT WAS A SPECTACULAR LIGHTNING EVENT. DURING THE

12 HOUR PERIOD FROM 6PM ON WEDNESDAY TO 6AM ON THURSDAY

MORNING...68028 LIGHTNING BOLTS OCCURRED OVER THE EASTERN

IOWA...SOUTHERN WISCONSIN...AND NORTHERN ILLINOIS REGION.

...RECORD WETTEST JULY SET AT CHICAGO-OHARE IL...


THE 0.71 INCHES OF RAINFALL AT CHICAGO-OHARE WEDNESDAY BROUGHT THE

MONTHLY RAINFALL TOTAL FOR JULY 2011 TO 9.75 INCHES AS OF 1 AM CDT.

THIS SETS A NEW RECORD FOR THE WETTEST JULY IN RECORDED HISTORY IN

CHICAGO. THE PREVIOUS RECORD WAS 9.56 INCHES IN JULY OF 1889. THIS

ALSO MOVES JULY 2011 UP TO THE 9TH WETTEST MONTH EVER IN CHICAGO.


WITH MORE RAIN EXPECTED OVER THE FINAL FEW DAYS OF JULY...THE 9.75

INCH RECORD WILL MOST CERTAINLY GO HIGHER. THUS...THIS IS A

PRELIMINARY RECORD EVENT.


TO PUT THIS IN PERSPECTIVE...THIS NEW RECORD MAKES JULY 2011 THE

9TH WETTEST MONTH FOR CHICAGO. THE ALL TIME RECORD WETTEST MONTH

WAS AUGUST 1987...WHEN 17.10 INCHES OF RAINFALL WAS OBSERVED.

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A


* SEVERE THUNDERSTORM WARNING FOR...

NORTHERN COOK COUNTY IN NORTHEAST ILLINOIS...

NORTHEASTERN KANE COUNTY IN NORTHEAST ILLINOIS...

LAKE COUNTY IN NORTHEAST ILLINOIS...

EASTERN MCHENRY COUNTY IN NORTHEAST ILLINOIS...


* UNTIL 1130 PM CDT


* AT 1006 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A

LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN

EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING

FROM WOODSTOCK TO LAKEWOOD TO HAMPSHIRE TO MAPLE PARK...AND MOVING

EAST AT 40 MPH.


* SEVERE THUNDERSTORMS WILL BE NEAR...

LAKE IN THE HILLS AROUND 1015 PM CDT.

WONDER LAKE...WEST DUNDEE...SLEEPY HOLLOW AND PRAIRIE GROVE AROUND

1020 PM CDT.

MCCULLOM LAKE...SUNNYSIDE...TOWER LAKES AND MCHENRY AROUND 1025 PM

CDT.

PISTAKEE HIGHLANDS...FOX LAKE...WAUCONDA AND LAKEMOOR AROUND 1030

PM CDT.

ROUND LAKE AND LONG LAKE AROUND 1035 PM CDT.


OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE FOX

RIVER GROVE...CARY...LAKE BARRINGTON...FOX RIVER VALLEY GARDENS...

BARRINGTON HILLS...NORTH BARRINGTON...SOUTH BARRINGTON...DEER PARK...

FOX LAKE HILLS AND ROUND LAKE HEIGHTS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE ACROSS. THIS IS

A DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE

AND STAY AWAY FROM WINDOWS!



A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT THURSDAY MORNING

FOR NORTHEASTERN ILLINOIS AND NORTHWEST INDIANA.

.NOW...


A LINE OF SCATTERED SHOWERS AND THUNDERSTORMS EXTENDS FROM

SOUTHERN WISCONSIN INTO THE NORTHERN TIER OF COUNTIES IN NORTHERN

ILLINOIS THIS MORNING AND IS MOVING STEADILY EAST. FREQUENT

LIGHTNING AND MODERATE TO LOCALLY HEAVY RAINFALL HAVE BOTH BEEN

ASSOCIATED WITH THIS STORM. TAKE CAUTION WHEN TRAVELING AS THERE

MAY BE BRIEF PONDING ON SOME ROADS.

.NOW...


A LINE OF SHOWERS EXTENDS FROM SOUTHERN WISCONSIN INTO THE

NORTHERN TIER OF COUNTIES IN NORTHERN ILLINOIS THIS MORNING AND IS

MOVING STEADILY EAST. AREAS AFFECTED BY THIS ACTIVITY WILL EXPECT

LIGHT TO MODERATE RAINFALL. TAKE CAUTION WHEN DRIVING AS ROADWAYS

MAY BE SLICK.


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Our Jekyll and Hyde July

Through the first three weeks of July, as of Thursday morning the 21st, only 0.45” of rain had been recorded at O’Hare Airport.  Had July ended with no additional rainfall, this would have been the third driest July in about 140 years of record keeping at Chicago.

• Three days later, by Sunday afternoon, this July ranked as the second wettest on record for Chicago…with a week still left to go.  What a difference three (wet) days make.
• Total rainfall through the 24^th now is 9.04 inches while the record for the month is 9.56 inches (set in July 1889).
• So in a three day period we moved from potentially the third driest July to the second wettest!

(Lawnmowers are being taken back out of storage.)

A brief summary of facts regarding the record rainfall measured on Saturday, July 23:

• The all-time Chicago daily record rainfall of 6.86 inches was set during the pre-dawn hours this past Saturday, July 23.  Never had Chicago’s official climate station (presently O'Hare Airport) measured more rainfall in a single calendar day. 
• The previous daily record for Chicago was 6.64 inches on September 13, 2008.  The previous record for July 23 itself was set just one year ago…with a total of 2.79 inches on 7/23/2010.
• A total of 8.20 inches of rain fell during the 24-hour period from 7:00 AM Friday to 7:00
  AM Saturday. This fell shy of the all-time 24-hour record rainfall set on August 13-14, 1987.
• As shown by the blue line in the graph below, this record setting rainfall actually took place over just about a 3-hour period!
• If Chicago had not received a single drop of rain this month outside that 3-hour window early Saturday, this would still rank as one of Chicago's top ten wettest Julys on record (8th overall)

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS WEDNESDAY
THROUGH SATURDAY. THERE IS A CHANCE THAT THUNDERSTORMS WEDNESDAY
NIGHT AND THURSDAY NIGHT MAY PRODUCE VERY HEAVY RAINFALL...ESPECIALLY
FOR LOCATIONS NORTH OF THE INTERSTATE 80 CORRIDOR.


HEAT AND HUMIDITY RETURNS TO NORTHERN ILLINOIS AND NORTHWEST

INDIANA THURSDAY...MAINLY SOUTH OF INTERSTATE 80 WHERE HEAT

INDICES MAY REACH 100 TO 110F.

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.NOW...


SEVERAL SCATTERED AREAS OF SHOWERS HAVE DEVELOPED IN THE PAST 30

MINUTES ACROSS EASTERN WINNEBAGO...OGLE...AND LEE COUNTIES.

BRIEF PERIODS OF LIGHT TO MODERATE RAINFALL ARE ASSOCIATED WITH

THESE SMALL SCATTERED AREAS OF ACTIVITY.

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...INFORMATION ON THE RECORD SETTING RAINFALL AT CHICAGO-OHARE TODAY...


6.86 INCHES OF RAINFALL HAVE BEEN RECORDED THROUGH 100 PM AT

CHICAGO-OHARE...WHICH ALREADY SHATTERED THE PREVIOUS ALL TIME

CALENDAR DAY RECORD RAINFALL TOTAL FOR THE CITY OF CHICAGO. OHARE

AIRPORT IS THE OFFICIAL CLIMATE SITE FOR THE CITY OF CHICAGO. THE

PERIOD OF RECORD BEGAN IN 1871. THE PREVIOUS CALENDAR DAY RAINFALL RECORD

WAS 6.64 INCHES ON SEPTEMBER 13TH 2008. INTERESTINGLY...THE

PREVIOUS CALENDAR DAY RECORD FOR JULY 23RD WAS SET ON JULY 23 2010

WITH 2.79 INCHES...ONLY TO BE BROKEN TODAY. THE RECORD EVENT

REPORT ISSUED AT 1100 AM WILL BE UPDATED AFTER 100 AM CDT TONIGHT

SHOULD ADDITIONAL RAINFALL OCCUR PRIOR TO THAT TIME.


8.20 INCHES OF RAINFALL OCCURRED BETWEEN 700 AM YESTERDAY AND 700

AM TODAY...WHICH FELL SHY OF THE ALL TIME 24 HOUR RAINFALL

RECORD...SET FROM AUGUST 13TH TO AUGUST 14TH 1987 WITH 9.35

INCHES. THE POTENTIAL DOES EXIST FOR ADDITIONAL HEAVY RAINFALL

LATER TONIGHT...SO THE 24 HOUR RAINFALL RECORD SET IN 1987 IS NOT

YET SAFE.


YET ANOTHER NOTABLE ASPECT OF THE TORRENTIAL RAINS OF THE LAST 2

DAYS IN NORTHEASTERN ILLINOIS HAS BEEN THE DRAMATIC SHIFT FROM THE

VERY DRY PATTERN THAT HAD EXISTED FOR MUCH OF JULY. ONLY 0.45

INCHES OF RAINFALL HAD BEEN RECORDED THROUGH JULY 21ST...WHICH WAS

1.85 INCHES BELOW THE NORMAL VALUE FOR THE MONTH.


WITH 8.86 INCHES OF RAIN FOR THE MONTH THROUGH 100 PM

TODAY...JULY 2011 HAS SURPASSED JULY 2010 TO MOVE INTO THIRD PLACE

AMONGST ALL TIME WETTEST JULYS. 8.84 INCHES FELL IN JULY 2010.

NUMBER 2 ON THE LIST IS JULY 1957 WITH 8.98 INCHES. THE ALL TIME

RAINIEST JULY OCCURRED ALL THE WAY BACK IN 1889 WITH 9.56 INCHES

OF RAINFALL. WITH A WEEK STILL LEFT IN JULY...IT IS REASONABLE TO

STATE THAT JULY 2011 COULD POTENTIALLY END UP AS THE WETTEST JULY

ON RECORD IN CHICAGO...PERHAPS AS SOON AS TONIGHT OR TOMORROW.

STAY TUNED.

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24-HOUR RAINFALL AMOUNTS

FOR SATURDAY(07/23/11)...



ILLINOIS                                       RAIN

LOCATION (COUNTY):                           FALL (IN)


OHARE (COOK).................................8.20

ELK GROVE VILLAGE 1ESE (COOK)................7.17

INVERNESS 2S (COOK)..........................6.50

WHEELING (COOK)..............................6.06

BARRINGTON (LAKE)............................5.72

OAK PARK 1SW (COOK)..........................4.92

OAK PARK 1NE (COOK)..........................4.91

OAK PARK 2S (COOK)...........................4.81

RIVERWOODS (LAKE)............................4.77

OAK PARK 1NNE (COOK).........................4.74

BANNOCKBURN (LAKE)...........................4.73

LINCOLNSHIRE 1N (LAKE).......................4.62

LONG GROVE 1NNE (LAKE).......................4.61

ALGONQUIN 1N (MCHENRY).......................4.38

COUNTRYSIDE 1ENE (COOK)......................4.30

CHICAGO 5NE (COOK)...........................4.22

SCHAUMBURG 3WSW (COOK).......................4.18

CHICAGO 6ESE (COOK)..........................4.09

HAWTHORN WOODS 1N (LAKE).....................4.09

CRYSTAL LAKE (MCHENRY).......................4.04

CHICAGO 6NNE (COOK)..........................3.96

LINCOLNWOOD 2E (COOK)........................3.95

EVANSTON 1N (COOK)...........................3.85

GLEN ELLYN 1NE (DU PAGE).....................3.78

WAUCONDA (LAKE)..............................3.75

LA GRANGE PARK 1SSW (COOK)...................3.65

GLEN ELLYN 2SSE (DU PAGE)....................3.60

WESTMONT 1SSE (DU PAGE)......................3.57

OAK LAWN 1N (COOK)...........................3.46

HUNTLEY 4W (MCHENRY).........................3.44

HOFFMAN ESTATES 5W (COOK)....................3.42

WINFIELD (DU PAGE)...........................3.38

BURR RIDGE 2SW (DU PAGE).....................3.35

ELMHURST (DU PAGE)...........................3.31

CARPENTERSVILLE 1ESE (KANE)..................3.20

WOODSTOCK 5NW (MCHENRY)......................3.14

ELGIN 1WSW (KANE)............................3.04

LISLE (DU PAGE)..............................2.99

ELGIN (KANE).................................2.94

ELGIN 1S (KANE)..............................2.94

MUNDELEIN (LAKE).............................2.92

CHICAGO RIDGE (COOK).........................2.86

OAK BROOK (DU PAGE)..........................2.86

MERRIONETTE PARK 1NNW (COOK).................2.82

WESTMONT (DU PAGE)...........................2.79

BEACH PARK 1W (LAKE).........................2.78

MACHESNEY PARK 3ENE (WINNEBAGO)..............2.73

POPLAR GROVE 5NNE (BOONE)....................2.71

MIDWAY 3SW (COOK)............................2.70

ALSIP (COOK).................................2.69

ROSCOE 2ESE (WINNEBAGO)......................2.67

POPLAR GROVE 3WSW (BOONE)....................2.66

BULL VALLEY 2WNW (MCHENRY)...................2.66

WEST CHICAGO (DU PAGE).......................2.64

ROCKFORD 4NW (WINNEBAGO).....................2.63

ST. CHARLES (KANE)...........................2.46

ST CHARLES (KANE)............................2.46

WEST CHICAGO 1SE (DU PAGE)...................2.40

WINTHROP HARBOR 1SSW (LAKE)..................2.39

LAKE VILLA 1SSW (LAKE).......................2.37

ST CHARLES 7NW (KANE)........................2.10

AURORA 4NE (DU PAGE).........................2.00

ORLAND HILLS 1S (COOK).......................1.93

ROCKFORD 3NE (WINNEBAGO).....................1.91

WAUKEGAN (LAKE)..............................1.83

ST CHARLES 1SW (KANE)........................1.82

LAKE FOREST 2NNE (LAKE)......................1.77

ROCKTON 1ESE (WINNEBAGO).....................1.76

BYRON 3N (OGLE)..............................1.74

GENEVA 1SSW (KANE)...........................1.72

BATAVIA 2WNW (KANE)..........................1.69

MANHATTAN 5ENE (WILL)........................1.69

SHIRLAND (WINNEBAGO).........................1.65

ROCKFORD 1NW (WINNEBAGO).....................1.61

BELVIDERE (BOONE)............................1.58

LILY LAKE 2E (KANE)..........................1.58

ROCHELLE (OGLE)..............................1.57

ASHTON (LEE).................................1.53

HOMER GLEN 4WNW (WILL).......................1.48

NEW LENOX 2SE (WILL).........................1.46

BATAVIA 1WNW (KANE)..........................1.41

NORTH AURORA 2NE (KANE)......................1.37

GURNEE 2NE (LAKE)............................1.36

ROCKFORD (WINNEBAGO).........................1.36

STEWARD (LEE)................................1.36

WORTH (COOK).................................1.35

MONEE (WILL).................................1.35

WAUKEGAN 2N (LAKE)...........................1.32

BATAVIA (KANE)...............................1.30

PARK FOREST 1NNE (COOK)......................1.27

GENEVA 3WSW (KANE)...........................1.25

GURNEE 2W (LAKE).............................1.16

MOMENCE 3NE (KANKAKEE).......................0.95

RICHTON PARK (COOK)..........................0.95

PEOTONE (WILL)...............................0.92

PEOTONE (WILL)...............................0.92

PLAINFIELD (WILL)............................0.91

AMBOY (LEE)..................................0.83

DE KALB (DE KALB)............................0.82

JOLIET LOCK/DAM (WILL).......................0.82

CRETE 3E (WILL)..............................0.81

PEOTONE (WILL)...............................0.81

AURORA (KANE)................................0.80

JOLIET 1ENE (WILL)...........................0.80

SUGAR GROVE 1ENE (KANE)......................0.76

MONTGOMERY 1SSE (KENDALL)....................0.69

DE KALB (DE KALB)............................0.68

JOLIET 2N (WILL).............................0.56

OSWEGO 5SSE (KENDALL)........................0.48

PAW PAW (LEE)................................0.37

CHANNAHON 2SSE (WILL)........................0.28

YORKVILLE 1W (KENDALL).......................0.18

YORKVILLE 1NE (KENDALL)......................0.12

DWIGHT (LIVINGSTON)..........................0.10

DRESDEN LOCK/DAM (GRUNDY)....................0.08

MORRIS 5NNW (GRUNDY).........................0.03

COAL CITY 4NNW (GRUNDY)......................0.02

MARSEILLES (LA SALLE)........................0.02

BOURBONNAIS (KANKAKEE)......................TRACE

MORRIS 1SW (GRUNDY).........................TRACE

OTTAWA 1NW (LA SALLE).......................TRACE

LA SALLE (LA SALLE).........................TRACE

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...EXTREMELY HEAVY RAINFALL AT CHICAGO-OHARE THIS MORNING...


BETWEEN 947 AM AND 955 AM THIS MORNING...EXTREME RAINFALL RATES

OCCURRED AT CHICAGO-OHARE IN ASSOCIATION WITH A LINE OF STRONG

THUNDERSTORMS MOVING THROUGH THE AREA. IN AN EIGHT MINUTE PERIOD...

0.75 OF AN INCH OF RAIN FELL BETWEEN 947 AM AND 955 AM...OF WHICH

0.55 OF AN INCH FELL BETWEEN 947 AM AND 951 AM. THE 0.55 OF AN INCH

IN 4 MINUTES RATE WOULD EQUATE TO 8.25 INCHES IN ONE HOUR. IN

TOTAL...1.29 INCHES OF RAIN FELL BETWEEN 700 AND 100 PM. THE

STRONGEST WIND GUST MEASURED AT THE AIRPORT DURING THIS TIME WAS

43 MPH.
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ANOTHER DAY OF HOT AND HUMID WEATHER TOOK PLACE ACROSS NORTHERN

ILLINOIS AND NORTHWEST INDIANA. DRIER AIR IS MOVING IN FROM THE

NORTH BEHIND A WEAK COOL FRONT...AND A LAKE BREEZE AIDED BY OUTFLOW

FROM SOME SHOWERS AND THUNDERSTORMS OVER LAKE MICHIGAN HAS HELPED

TAKE TEMPERATURES DOWN A FEW DEGREES IN SOME SPOTS.


THE FOLLOWING INFORMATION DEPICTS HIGH TEMPERATURES AND PEAK HOURLY

HEAT INDEX VALUES AT MAINLY ASOS LOCATIONS ACROSS NORTHERN ILLINOIS

AND NORTHWEST INDIANA THROUGH MID AFTERNOON.


THROUGH 330 PM CDT...


LOCATION            MAX T      PEAK HI


NORTHEAST IL...


NORTHERLY ISLAND    100         112

O'HARE               99         109

MIDWAY              100         110

WHEELING             99         111

DUPAGE               96         108

AURORA               95         109

WAUKEGAN             96         105



NORTH CENTRAL IL...


ROCKFORD             97         103



NORTHWEST IN...


VALPARAISO          101         109
from my U.S. Cellular Android device

.SPECIAL WEATHER STATEMENT...


AT 1152 AM...ALONG A LINE EXTENDING FROM SOUTH BELOIT TO WINNEBAGO...

MOVING EAST AT 45 MPH.


NICKEL SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND

LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS.


LOCATIONS IMPACTED INCLUDE...

WINNEBAGO...          SOUTH BELOIT...       ROCKTON...

ROSCOE...             ROCKFORD AIRPORT...   ROCKFORD...

MACHESNEY PARK...     LOVES PARK...         CHERRY VALLEY...

POPLAR GROVE...       BELVIDERE...          CAPRON...


PRECAUTIONARY/PREPAREDNESS ACTIONS...


GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE

OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS

TREES. HEAVY RAINFALL CAN LEAD TO FLOODING OF LOW LYING AREAS SUCH AS

DITCHES...VIADUCTS...UNDERPASSES...CREEKS AND DRAINAGE AREAS. SEEK

SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE
from my U.S. Cellular Android device

.NOW...

AT 1115 AM DOPPLER RADAR INDICATED A COUPLE OF ISOLATED SHOWERS AND

THUNDERSTORMS FROM 15 MILES WEST OF LAKE SUMMERSET TO 22 MILES WEST

OF PECATONICA...MOVING EAST AT 45 MPH.


LOCATIONS THAT MAY BE AFFECTED INCLUDE...

LAKE SUMMERSET...PECATONICA...DURAND...WINNEBAGO...SOUTH BELOIT AND

ROCKTON.


GUSTY WINDS TO 40 MPH AND TORRENTIAL DOWNPOURS MAY ACCOMPANY THESE

STORMS.

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...MAX TEMPERATURES AND HEAT INDICES ACROSS THE REGION TODAY...



MAX T    PEAK HI


CHICAGO DOWNTOWN/NORTHERLY ISLAND100  112

NWS WFO AT ROMEOVILLE                    99       107



AIRPORT ASOS LOCATIONS...


AURORA/SUGAR GROVE 97       109

CHICAGO OHARE 99  108

CHICAGO MIDWAY100       108

CHICAGO EXECUTIVE/PALWAUKEE100       112

DUPAGE/WEST CHICAGO                      97       109

ROCKFORD                                100       108

WAUKEGAN                                 98       108

VALPARAISO                               99       111



AIRPORT AWOS LOCATIONS...HIGHEST HOURLY


DEKALB                                   95       112

GARY                                     99       107

JOLIET                                   99       107

KANKAKEE                                 99       115

LANSING                                 100       111

MORRIS                                   95       101

PERU                                     97       107

PONTIAC                                  97       112

ROCHELLE                                 93       102
from my U.S. Cellular Android device

...INFORMATION ON THE LAST TIME 100 DEGREE TEMPERATURES WERE REACHED

IN CHICAGO AND ROCKFORD...


CHICAGO OHARE AIRPORT...102 DEGREES ON JULY 24TH 2005. CHICAGO

MIDWAY AIRPORT...104 DEGREES JULY 24TH 2004. NORTHERLY ISLAND...102

DEGREES JULY 24TH 2005.


ROCKFORD AIRPORT...THE LAST TIME IT WAS 100 DEGREES IN ROCKFORD WAS

JULY 10TH 1989.
from my U.S. Cellular Android device

...FIRST BACK TO BACK 100 DEGREE DAYS AT ROCKFORD IN 23 YEARS...


THE HIGH TEMPERATURE AT THE ROCKFORD AIRPORT HIT 100 DEGREES

THIS AFTERNOON AT 343 PM CDT. ALONG WITH THE 100 DEGREES

ATTAINED TUESDAY AFTERNOON...THIS IS THE FIRST BACK TO BACK

100 DEGREE DAYS IN ROCKFORD SINCE AUGUST 16TH AND 17TH OF

1988...WHEN THE MERCURY TAGGED 104 AND 102 DEGREES RESPECTIVELY.
from my U.S. Cellular Android device

AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 4 AM CDT
FRIDAY.

* TEMPS AND HEAT INDEX...HIGH TEMPERATURES THIS AFTERNOON WILL
  CLIMB INTO THE UPPER 90S TO AROUND 100 DEGREES. THE HEAT
  COMBINED WITH OPPRESSIVELY HIGH HUMIDITY VALUES WILL RESULT IN
  HEAT INDEX READINGS PEAKING BETWEEN 110 AND 115 DEGREES. IT
  WILL REMAIN OPPRESSIVELY HOT AND HUMID TONIGHT WITH LOWS ONLY
  DIPPING BRIEFLY INTO THE UPPER 70S IN THE SUBURBS BUT HOLDING IN
  THE 80S IN THE CITY. HEAT INDEX READING TONIGHT WILL ONLY
  GRADUALLY FALL BELOW 100 INTO THE 90S BY LATE TONIGHT IN THE
  CITY...CREATING EXTREMELY DANGEROUS CONDITIONS. HIGHS ON
  THURSDAY WILL ONCE AGAIN SOAR INTO THE 90S WITH HEAT INDEX
  READINGS OF 105 TO 110.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1. IN THE CITY OF CHICAGO...CALL THE
24 HOUR 3 1 1 HEAT EMERGENCY NUMBER.

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION
IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY
IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP
ON RELATIVES AND NEIGHBORS.

DANGEROUSLY HOT AND HUMID CONDITIONS ARE LIKELY THROUGH TONIGHT
WITH PEAK HEAT INDEX READINGS OF 110 TO 120 THIS AFTERNOON.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH

665 IN EFFECT UNTIL 3 AM CDT WEDNESDAY FOR THE FOLLOWING AREAS


IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES


IN NORTH CENTRAL ILLINOIS


BOONE


IN NORTHEAST ILLINOIS


COOK                  DUPAGE                KANE

LAKE IL               MCHENRY


THIS INCLUDES THE CITIES OF...AURORA...BELVIDERE...CHICAGO...

WAUKEGAN...WHEATON AND WOODSTOCK.


Sent from my U.S. Cellular Android device

...EXCESSIVE HEAT WARNING IN EFFECT FROM 7 AM WEDNESDAY TO 4 AM

CDT FRIDAY...


THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED AN EXCESSIVE

HEAT WARNING...WHICH IS IN EFFECT FROM 7 AM WEDNESDAY TO 4 AM CDT

FRIDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT.


* TEMPS AND HEAT INDEX...HIGH TEMPERATURES IN THE MIDDLE TO

PERHAPS UPPER 90S WILL COMBINE WITH OPPRESSIVE HUMIDITY VALUES

TO RESULT IN DANGEROUS HIGH HEAT INDICES OF 105 TO 110 DEGREES

BOTH WEDNESDAY AND THURSDAY AFTERNOON. LITTLE RELIEF IS EXPECTED

FROM THE HEAT WEDNESDAY NIGHT...WITH LOWS IN THE MID TO UPPER

70S.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN

POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR

EVENING.  KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT

STROKE.  WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN

POSSIBLE AND DRINK PLENTY OF WATER.


TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND

HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS

IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY

HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE

IS AN EMERGENCY...CALL 9 1 1.


AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF

DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT

TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION

IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY

IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP

ON RELATIVES AND NEIGHBORS.


Sent from my U.S. Cellular Android device

ROCKFORD REACHED 100 DEGREES AT 329 PM CDT TODAY...WHICH TIED THE

RECORD HIGH FOR JULY 19TH SET IN 1930. THE LAST TIME IT WAS 100

DEGREES IN ROCKFORD WAS JULY 10TH 1989.


THE FORECAST HIGH TEMPERATURE FOR OHARE AIRPORT TOMORROW IS IN

THE UPPER 90S...BUT IT IS POSSIBLE THAT TEMPERATURES COULD REACH

100 DEGREES. OHARE IS THE OFFICIAL CLIMATE SITE FOR THE CITY OF

CHICAGO. THE LAST TIME IT REACHED 100 DEGREES IN CHICAGO WAS JULY

24TH 2005 WHEN THE HIGH FOR THE DAY WAS 102 DEGREES.



***************

from my U.S. Cellular Android device

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS

EVENING...

...EXCESSIVE HEAT WARNING IN EFFECT FROM 7 AM WEDNESDAY TO 4 AM

CDT FRIDAY...


THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED AN EXCESSIVE

HEAT WARNING...WHICH IS IN EFFECT FROM 7 AM WEDNESDAY TO 4 AM CDT

FRIDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT. A DENSE

FOG ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING.


* TEMPS AND HEAT INDEX...HIGH TEMPERATURES IN THE MIDDLE TO

PERHAPS UPPER 90S WILL COMBINE WITH OPPRESSIVE HUMIDITY VALUES

TO RESULT IN DANGEROUS HIGH HEAT INDICES OF 105 TO 115 DEGREES

BOTH WEDNESDAY AND THURSDAY AFTERNOON. LITTLE RELIEF IS EXPECTED

FROM THE HEAT WEDNESDAY NIGHT...ESPECIALLY IN THE CITY OF

CHICAGO WHERE LOWS WILL BE IN THE LOWER 80S WITH NIGHT TIME HEAT

INDEX READINGS LIKELY TO REMAIN ABOVE 90 DEGREES THROUGH THE

NIGHT.


* TIMING OF DENSE FOG ADVISORY WILL BE THROUGH THIS EVENING WITH

VISIBILITY OF A QUARTER MILE OR LESS EXPECTED FOR AREAS ALONG

THE SHORE OF LAKE MICHIGAN...ESPECIALLY ALONG THE INDIANA SHORE

EAST OF GARY. VISIBILITY WILL IMPROVE RAPIDLY INLAND...WITH MANY

AREAS NOT SEEING DENSE FOG EVEN A HALF MILE OR LESS INLAND.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN

POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR

EVENING.  KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT

STROKE.  WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN

POSSIBLE AND DRINK PLENTY OF WATER.


TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND

HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS

IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY

HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE

IS AN EMERGENCY...CALL 9 1 1. IF YOU ARE IN THE CITY OF

CHICAGO...CALL THE CITYS 24 HOUR 3 1 1 HEAT EMERGENCY NUMBER.


AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF

DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT

TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION

IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY

IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP

ON RELATIVES AND NEIGHBORS.


A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE

REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN...

USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.
from my U.S. Cellular Android device

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED AN EXCESSIVE

HEAT WARNING...WHICH IS IN EFFECT UNTIL 7 AM CDT WEDNESDAY. THE

HEAT ADVISORY IS NO LONGER IN EFFECT. AN EXCESSIVE HEAT WATCH

REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE THURSDAY

NIGHT.


* TEMPS/HEAT INDEX...HIGH TEMPERATURE IN THE MIDDLE TO POSSIBLY

UPPER 90S ARE EXPECTED TODAY THROUGH THURSDAY. THESE

TEMPERATURES COMBINED WITH OPPRESSIVE HUMIDITY LEVELS WILL

RESULT IN HEAT INDICES OF UP TO AROUND 110 DEGREES. IN

ADDITION...LITTLE RELIEF IS EXPECTED DURING THE NIGHTTIME HOURS

WITH LOWS IN THE UPPER 70S.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN

POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR

EVENING.  KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT

STROKE.  WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN

POSSIBLE AND DRINK PLENTY OF WATER.


TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND

HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS

IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY

HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE

IS AN EMERGENCY...CALL 9 1 1.


AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF

DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT

TEMPERATURES AND HIGH HUMIDITY WILL CREATE A DANGEROUS SITUATION

IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF FLUIDS...STAY

IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP

ON RELATIVES AND NEIGHBORS.


Sent from my U.S. Cellular Android device

.NOW...

AT 915 AM VISIBLE SATELLITE IMAGERY DEPICTED AN AREA OF MARINE FOG

DRIFTING SOUTHWEST OVER THE SOUTHWEST CORNER OF LAKE MICHIGAN. BASED

ON THE MOVEMENT OF THIS FOG LAYER...IT IS EXPECTED TO PUSH INTO

DOWNTOWN CHICAGO AND CONTINUE THROUGH THE REMAINDER OF THE MORNING

HOURS. VISIBILITIES IN DOWNTOWN CHICAGO WILL RANGE BETWEEN ONE HALF

MILE TO AS LITTLE AS ONE QUARTER OF A MILE. THIS FOG LAYER MAY PUSH

FURTHER INLAND...HOWEVER IT IS EXPECTED TO NOT HAVE A LARGE OF

IMPACT ON VISIBILITIES.

Sent from my U.S. Cellular Android device

.NOW...

PATCHY DENSE FOG WILL CONTINUE TO REDUCE VISIBILITIES TO ONE

QUARTER MILE OR LESS IN A FEW SPOTS THROUGH EARLY THIS

MORNING...WITH THE FOG MOST COMMON IN RURAL AND LOW LYING AREAS.

AREA TRAVELERS SHOULD USE CAUTION AS VISIBILITY WILL VARY OVER

SHORT DISTANCES...BEFORE THE FOG LIFTS OVER THE NEXT HOUR.

Sent from my U.S. Cellular Android device

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED AN EXCESSIVE

HEAT WATCH...WHICH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH

LATE THURSDAY NIGHT.


* TEMPS/HEAT INDEX...HIGH TEMPERATURES IN THE MIDDLE TO PERHAPS

UPPER 90S WILL COMBINE WITH OPPRESSIVE HUMIDITY VALUES TO RESULT

IN DANGEROUS HIGH HEAT INDICES OF 105 TO 110 DEGREES BOTH

WEDNESDAY AND THURSDAY AFTERNOON. LITTLE RELIEF IS EXPECTED FROM

THE HEAT WEDNESDAY NIGHT...ESPECIALLY IN THE CITY WHERE LOWS

WILL BE IN THE LOWER 80S WITH NIGHT TIME HEAT INDEX READINGS

LIKELY TO REMAIN ABOVE 90 DEGREES THROUGH THE NIGHT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT

TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND

HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN

WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY

IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP

ON RELATIVES AND NEIGHBORS.

*HISTORICAL PERSPECTIVE ON STRETCHES OF 90 DEGREE PLUS WEATHER*


CHICAGO-O'HARE MAY FALL JUST SHY OF 90 DEGREES ON TUESDAY...BUT

ROCKFORD IS EXPECTED TO REACH THE LOWER 90S. HIGH TEMPERATURES ARE

THEN FORECAST TO REACH OR EXCEED 90 DEGREES AT ROCKFORD THROUGH

THIS UPCOMING SATURDAY...WHICH IF IT OCCURRED WOULD MEAN THAT

THERE WOULD HAVE BEEN 7 CONSECUTIVE DAYS OF 90 DEGREE OR HIGHER

TEMPERATURES. FOR CHICAGO...IF TEMPERATURES FAIL TO REACH 90 ON

TUESDAY...BUT THEN REACH OR EXCEED 90 THROUGH SATURDAY...THE

OFFICIAL LENGTH OF THE HEAT WAVE WILL HAVE BEEN 4 CONSECUTIVE

DAYS. HOWEVER...IT IS CERTAINLY POSSIBLE THAT TEMPERATURES REACH

90 ON TUESDAY...POTENTIALLY ALLOWING FOR A 7 DAY HEAT WAVE AT

CHICAGO AS WELL. HERE ARE THE LONGEST STRETCHES OF 90 DEGREE OR

HIGHER TEMPERATURES AT CHICAGO AND ROCKFORD.


...CHICAGO.

11 DAYS ON FOUR OCCASIONS...INCLUDING LAST DAY OF HEAT WAVE AND

YEAR.

...SEPTEMBER 3RD 1953

...JUNE 21ST 1954

...AUGUST 5TH 1955

...AUGUST 29TH 1959.


MOST RECENTLY...THERE WAS AN 8 DAY HEAT WAVE ENDING ON JUNE 30TH

2005 AND A 6 DAY HEAT WAVE ENDING ON AUGUST 2ND 2006.


...ROCKFORD.

AN INCREDIBLE 21 DAYS ON TWO OCCASIONS...INCLUDING LAST DAY OF

HEAT WAVE AND YEAR.

...JULY 18TH 1921

...AUGUST 1ST 1916.


MOST RECENTLY...THERE WAS A 7 DAY HEAT WAVE ENDING ON JUNE 29TH

2005 AND A 6 DAY HEAT WAVE ENDING ON JULY 19TH 2005.


*WARM OVERNIGHT LOW TEMPERATURES MEAN LITTLE RELIEF FROM THE HEAT*


WITH A VERY HUMID AIRMASS IN PLACE FOR THE REMAINDER OF THIS

WEEK...TEMPERATURES WILL NOT BE ABLE TO COOL MUCH AT NIGHT.

FORECAST LOW TEMPERATURES ARE IN THE MIDDLE AND UPPER 70S THROUGH

SATURDAY. ALTHOUGH RECORD HIGH TEMPERATURES ARE NOT EXPECTED

DURING THE CURRENT STRETCH OF HOT AND HUMID WEATHER...RECORD HIGH

MINIMUM TEMPERATURES ARE WELL WITHIN THE REALM OF POSSIBILITY AT

BOTH CHICAGO AND ROCKFORD. HERE IS A LIST OF THE RECORD HIGH

MINIMUM TEMPERATURES AT THE TWO SITES THROUGH JULY 24TH.


...............CHICAGO...............ROCKFORD

JULY 19TH......78 IN 1977............75 IN 1942

JULY 20TH......79 IN 1977............74 IN 1952, 1972 AND 1977

JULY 21ST......80 IN 1972............77 IN 1932, 1952 AND 2002

JULY 22ND......80 IN 1972............75 IN 1934, 1952 AND 1972

JULY 23RD......78 IN 1965............76 IN 1965

JULY 24TH......78 IN 1912**..........74 IN 1934 AND 1940


**TIED IN 1934, 1940 AND 2005


FOR JULY 18TH...THE LOW TEMPERATURE TODAY SO FAR AT CHICAGO WAS 80

DEGREES AT 504 AM CST. IF TEMPERATURES DO NOT FALL BELOW THIS MARK

BY 1200 AM CST (100 AM CDT)...A NEW RECORD HIGH MINIMUM

TEMPERATURE WILL BE SET FOR THE DATE. THE PREVIOUS RECORD WAS 78

DEGREES IN 1942.


AT ROCKFORD...THE LOW TEMPERATURE SO FAR TODAY WAS 79 DEGREES AT

556 AM CST...WHICH WOULD TIE THE RECORD FOR JULY 18TH SET IN 1942

IF TEMPERATURES DO NOT FALL BELOW THAT POINT BY 1200 AM CST (100

AM CDT).
from my U.S. Cellular Android device

WEATHER HAZARDS EXPECTED:


HEAT INDICES AROUND 105 DEGREES THIS AFTERNOON.


CHANCE OF THUNDERSTORMS...SOME COULD PRODUCE:

DAMAGING WINDS IN EXCESS OF 60 MPH.

HEAVY RAIN.

FREQUENT LIGHTNING.


AREAS AFFECTED AND TIMING:


HEAT INDEX VALUES WILL RISE TO AROUND 105 DEGREES LATE THIS

AFTERNOON FOR MOST OF NORTH CENTRAL AND NORTHEAST ILLINOIS...AND

NORTHWEST INDIANA.


THERE IS A CHANCE OF THUNDERSTORMS TONIGHT. A FEW OF THE STORMS

MAY BECOME SEVERE TONIGHT.


DISCUSSION:


VERY WARM AND HUMID AIR OVER THE AREA WILL RESULT IN HEAT INDEX

VALUES IN THE 100 TO 110 DEGREE RANGE LATE THIS AFTERNOON.


UPPER LEVEL DISTURBANCES PIVOTING AROUND A MASSIVE DOME OF HEAT

OVER THE CENTRAL PLAINS HAS ALLOWED THUNDERSTORMS TO OCCASIONALLY

DEVELOP AND SLIDE SOUTHEAST ACROSS THE WESTERN GREAT LAKES.

ADDITIONAL THUNDERSTORMS WILL DEVELOP THIS EVENING AND APPROACH

NORTHERN ILLINOIS AND NORTHWEST INDIANA TONIGHT. A COLD FRONT

WILL DROP SOUTH INTO NORTHERN ILLINOIS AND FAR NORTHWEST INDIANA

BY DAYBREAK TUESDAY.


.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.


PERIODIC CHANCES FOR THUNDERSTORMS WILL OCCUR FROM THURSDAY

THROUGH SUNDAY.


HEAT INDICES AROUND 105 ARE POSSIBLE EACH DAY TUESDAY THROUGH

SUNDAY...EXCEPT WINDS OFF OF LAKE MICHIGAN WILL KEEP AREAS NEAR

THE LAKE FROM GETTING QUITE AS HOT TUESDAY AND THURSDAY.

Sent from my U.S. Cellular Android device

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...


A HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING.


* TEMPS/HEAT INDEX...HIGH TEMPERATURES WILL RISE INTO THE LOWER

90S LATE THIS AFTERNOON. COMBINED WITH THE VERY MOIST AIR OVER

THE AREA AFTERNOON HEAT INDICES AROUND 105 DEGREES ARE

EXPECTED.


* IMPACTS...THE HIGH HEAT AND HUMIDITY...COMBINED WITH SKIES

BECOMING MOSTLY SUNNY BY MIDDAY...WILL INCREASE THE POTENTIAL

FOR HEAT RELATED ILLNESSES SHOULD PROPER PRECAUTIONS NOT BE

TAKEN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.

HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A

SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DURING VERY HOT

WEATHER IT IS CRITICAL TO STAY HYDRATED BY DRINKING PLENTY OF

WATER. IN ADDITION CHECK UP ON RELATIVES...ELDERLY AND NEIGHBORS.


TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN

POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR

EVENING.  KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT

STROKE.  WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN

POSSIBLE AND DRINK PLENTY OF WATER.


TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND

HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS

IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY

HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE

IS AN EMERGENCY...CALL 9 1 1.


A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.

HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A

SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF

FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...

AND CHECK UP ON RELATIVES AND NEIGHBORS.


CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES

UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT

WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A

MATTER OF MINUTES!
from my U.S. Cellular Android device

A HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT /9 PM EDT/ THIS

EVENING.


* TEMPS/HEAT INDEX...HIGH TEMPERATURES WILL RISE INTO THE LOWER

AND MID 90S THIS AFTERNOON. COMBINED WITH THE VERY MOIST AIR

OVER THE AREA AFTERNOON HEAT INDICES OF 100 TO 110 DEGREES ARE

EXPECTED.


* IMPACTS...THE HIGH HEAT AND HUMIDITY...COMBINED WITH SKIES

BECOMING MOSTLY SUNNY BY MIDDAY...WILL INCREASE THE POTENTIAL

FOR HEAT RELATED ILLNESSES SHOULD PROPER PRECAUTIONS NOT BE

TAKEN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.

HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A

SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DURING VERY HOT

WEATHER IT IS CRITICAL TO STAY HYDRATED BY DRINKING PLENTY OF

WATER. IN ADDITION CHECK UP ON RELATIVES...ELDERLY AND NEIGHBORS.


TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN

POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR

EVENING.  KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT

STROKE.  WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN

POSSIBLE AND DRINK PLENTY OF WATER.


TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND

HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS

IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY

HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE

IS AN EMERGENCY...CALL 9 1 1.


A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.

HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A

SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF

FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...

AND CHECK UP ON RELATIVES AND NEIGHBORS.


CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES

UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT

WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A

MATTER OF MINUTES!

Sent from my U.S. Cellular Android device

.NOW...

A CLUSTER OF THUNDERSTORMS MOVING SOUTHEAST ACROSS PORTIONS OF

NORTH CENTRAL ILLINOIS...WILL CONTINUE TO PROGRESS TO THE

SOUTHEAST OVER THE NEXT COUPLE OF HOURS. AREAS FROM POLO SOUTHEAST

TO PONTIAC CAN EXPECT TO OBSERVE BRIEF HEAVY DOWNPOURS...GUSTY

WINDS AND CLOUD TO GROUND LIGHTNING WITH THE STRONGER STORMS.


Sent from my U.S. Cellular Android device

HEAT INDEX VALUES COULD REACH 105 DEGREES IN CHICAGO TODAY AND
AGAIN WEDNESDAY AND THURSDAY THIS WEEK. LOOKING BACK AT THE PERIOD
1990 THROUGH 2010 IT TURNS OUT THAT DAYS THAT SAW THE HEAT INDEX
IN CHICAGO OFFICIALLY REACH 105 DEGREES WERE QUITE RARE. IN
FACT...THERE HAVE ONLY BEEN 31 DAYS WHERE THE HEAT INDEX
OFFICIALLY REACH 105 DEGREES AT OHARE INTERNATIONAL AIRPORT...THE
OFFICIAL RECORDING STATION FOR CHICAGO. IN FACT...IN ORDER TO FIND
THE LAST HOURLY OBSERVATION WITH A HEAT INDEX OF AT LEAST 105 IN
CHICAGO ONE WOULD HAVE TO LOOK BACK TO 6 PM ON AUGUST 2ND 2006.

830 PM CDT SUN JUL 17 2011


...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY...


A HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT MONDAY.


ANOTHER HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT

MONDAY.


* TEMPS/HEAT INDEX...HIGH TEMPERATURES WILL RISE INTO THE LOWER

90S MONDAY AFTERNOON...WITH INCREASING HUMIDITY...RESULTING IN

PEAK AFTERNOON HEAT INDICES OF 100 TO 105 DEGREES.


* IMPACTS...THE HIGH HEAT AND HUMIDITY COMBINED WITH MOSTLY

SUNNY SKIES WILL INCREASE THE POTENTIAL FOR HEAT RELATED

ILLNESSES SHOULD PROPER PRECAUTIONS NOT BE TAKEN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.

HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A

SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DURING VERY HOT

WEATHER IT IS CRITICAL TO STAY HYDRATED BY DRINKING PLENTY OF

WATER. IN ADDITION CHECK UP ON RELATIVES...ELDERLY AND NEIGHBORS.


TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN

POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR

EVENING.  KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT

STROKE.  WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN

POSSIBLE AND DRINK PLENTY OF WATER.


TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND

HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS

IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY

HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE

IS AN EMERGENCY...CALL 9 1 1.


A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.

HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A

SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF

FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...

AND CHECK UP ON RELATIVES AND NEIGHBORS.


CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES

UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT

WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A

MATTER OF MINUTES!
from my U.S. Cellular Android device

DAY ONE...TODAY AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  HEAT INDICES OVER 100 DEGREES.

  CHANCE OF THUNDERSTORMS...SOME COULD PRODUCE:
    DAMAGING WINDS IN EXCESS OF 60 MPH.
    HEAVY RAIN.
    AND FREQUENT LIGHTNING.

  AREAS AFFECTED AND TIMING:

  HEAT INDICES OVER 100 DEGREES ARE EXPECTED THIS
  AFTERNOON...PARTICULARLY NEAR AND WEST OF THE INTERSTATE 39
  CORRIDOR.

  THUNDERSTORMS ARE POSSIBLE LATE THIS EVENING AND ESPECIALLY
  OVERNIGHT...WITH THE GREATEST THREAT EXISTING NORTH OF
  INTERSTATES 88 AND 290.

  DISCUSSION:

  AFTERNOON HEAT INDICES OF 100 TO 105 ARE EXPECTED OVER NORTH
  CENTRAL ILLINOIS.

  A WEAK UPPER LEVEL DISTURBANCE PIVOTING AROUND A MASSIVE DOME OF
  HEAT OVER THE CENTRAL PLAINS COULD TRIGGER THE DEVELOPMENT OF A
  CLUSTER OF THUNDERSTORMS TONIGHT OVER WISCONSIN. IF THIS
  THUNDERSTORM CLUSTER DOES INDEED MATERIAL...THEN IT WOULD LIKELY
  DIVE SOUTHEAST INTO NORTHERN ILLINOIS LATE TONIGHT...BRINGING
  WITH IT A POTENTIAL FOR DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

  A PERIOD OR TWO OF THUNDERSTORMS IS POSSIBLE MONDAY INTO
  TUESDAY...IF STORMS DO INDEED AFFECT THE AREA THEN THEY WOULD
  BRING WITH THEM A THREAT OF DAMAGING WINDS.

  HEAT INDICES OF 100 TO 105 ARE POSSIBLE MONDAY AND
  TUESDAY...WITH HEAT INDICES NEAR OR ABOVE 105 DEGREES POSSIBLE
  WEDNESDAY...THURSDAY...AND POSSIBLY INTO FRIDAY.

  THERE IS A SLIGHT CHANCE OF THUNDERSTORMS AGAIN BY LATE THURSDAY
  THROUGH SATURDAY.

.SPOTTER INFORMATION STATEMENT...

  SPOTTERS MAY BE NEEDED LATE TONIGHT...ESPECIALLY OVER FAR
  NORTHERN ILLINOIS.

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS

EVENING... j


THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A HEAT

ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS

EVENING.


* TEMPS/HEAT INDEX...HIGH TEMPERATURES WILL CLIMB INTO THE LOWER

TO MIDDLE 90S WITH INCREASING HUMIDITY RESULTING IN PEAK

AFTERNOON HEAT INDICES OF 100 TO 105 DEGREES.


* IMPACTS...THE HIGH HEAT AND HUMIDITY COMBINED WITH MOSTLY SUNNY

SKIES WILL INCREASE THE POTENTIAL FOR HEAT RELATED ILLNESSES

SHOULD PROPER PRECAUTIONS NOT BE TAKEN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN

POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR

EVENING.  KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT

STROKE.  WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN

POSSIBLE AND DRINK PLENTY OF WATER.


TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND

HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS

IN SHADED OR AIR CONDITIONED ENVIRONMENTS.  ANYONE OVERCOME BY

HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.  HEAT STROKE

IS AN EMERGENCY...CALL 9 1 1.


A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.

HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A

SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF

FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...

AND CHECK UP ON RELATIVES AND NEIGHBORS.


CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES

UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURHING HOT

WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A

MATTER OF MINUTES!
from my U.S. Cellular Android device

...HOT AND HUMID CONDITIONS LIKELY...


A STRONG UPPER LEVEL HIGH PRESSURE SYSTEM OVER THE CENTRAL PLAINS

WILL BUILD EAST INTO THE REGION PROVIDING A HOT AND HUMID AIRMASS

INTO NORTHERN ILLINOIS AND NORTHWEST INDIANA SUNDAY...AND CONTINUE

THROUGH MUCH OF NEXT WEEK.


HEAT AND HUMIDITY WILL STEADILY BUILD SUNDAY THROUGH NEXT WEEK AS

AFTERNOON HIGH TEMPERATURES CLIMB INTO THE 90S. HEAT INDICES

ON SUNDAY AND MONDAY WILL APPROACH 100 DEGREES. TUESDAY SOME

RELIEF FROM THE HEAT IS EXPECTED NEAR THE LAKE SHORE...HOWEVER AREAS

WEST OF THE FOX RIVER VALLEY AND SOUTH OF INTERSTATE 80 MAY SEE

HEAT INDICES APPROACH 105 DEGREES.


HEAT IS THEN FORECAST TO BUILD ACROSS ALL OF NORTHERN ILLINOIS AND

NORTHWEST INDIANA DURING THE MIDDLE TO END OF THE WEEK WITH HIGHS

INCREASING TO THE MID 90S WITH HEAT INDICES OF 100 TO 110 DEGREES.


DURING VERY HOT WEATHER IT IS CRITICAL TO STAY HYDRATED BY

DRINKING PLENTY OF WATER. STRENUOUS OUTDOOR ACTIVITIES SHOULD BE

SCHEDULED DURING THE EARLY MORNING OR EVENING HOURS. WEAR LIGHT

WEIGHT AND LOOSE FITTING CLOTHING...AND REMAIN IN AIR CONDITIONED

LOCATIONS.


STAY TUNED TO NWS CHICAGO OR YOUR LOCAL MEDIA OUTLETS FOR FORECAST

UPDATES AND STATEMENTS ON THIS DEVELOPING HEAT WAVE.
from my U.S. Cellular Android device

...HOT AND HUMID CONDITIONS LIKELY...

A STRONG UPPER LEVEL HIGH PRESSURE SYSTEM OVER THE CENTRAL PLAINS
WILL BUILD EAST INTO THE REGION PROVIDING A HOT AND HUMID AIRMASS
INTO NORTHERN ILLINOIS AND NORTHWEST INDIANA SUNDAY...AND CONTINUE
THROUGH MUCH OF NEXT WEEK.

HEAT AND HUMIDITY WILL STEADILY BUILD SUNDAY THROUGH NEXT WEEK AS
AFTERNOON HIGH TEMPERATURES CLIMB INTO THE 90S. HEAT INDICES
ON SUNDAY WILL APPROACH 100 DEGREES...THEN WARMER ON MONDAY TO
100 TO 105 DEGREES. TUESDAY SOME RELIEF FROM THE HEAT IS
POSSIBLE...ESPECIALLY CLOSER TO LAKE MICHIGAN.

HEAT IS THEN FORECAST TO REBUILD BACK INTO THE REGION DURING THE
MIDDLE TO END OF THE WEEK WITH HIGHS RETURNING TO THE 90S WITH
HEAT INDICES OVER 100 DEGREES POSSIBLE AGAIN.

DURING VERY HOT WEATHER IT IS CRITICAL TO STAY HYDRATED BY
DRINKING PLENTY OF WATER. STRENUOUS OUTDOOR ACTIVITIES SHOULD BE
SCHEDULED DURING THE EARLY MORNING OR EVENING HOURS. WEAR LIGHT
WEIGHT AND LOOSE FITTING CLOTHING...AND REMAIN IN AIR CONDITIONED
LOCATIONS.

STAY TUNED TO NWS CHICAGO OR YOUR LOCAL MEDIA OUTLETS FOR FORECAST
UPDATES AND STATEMENTS ON THIS DEVELOPING HEAT WAVE.

..HOT AND VERY HUMID CONDITIONS LIKELY...

HEAT AND HUMIDITY WILL STEADILY BUILD SUNDAY THROUGH NEXT WEEK AS
AFTERNOON HIGH TEMPERATURES CLIMB INTO THE 90S. HEAT INDICES
ON SUNDAY WILL APPROACH 100 DEGREES...THEN WARMER ON MONDAY TO
AROUND 105 DEGREES. TUESDAY SOME RELIEF FROM THE HEAT IS
POSSIBLE...ESPECIALLY CLOSER TO LAKE MICHIGAN.

HEAT IS THEN FORECAST TO REBUILD BACK INTO THE REGION DURING THE
MIDDLE TO END OF THE WEEK WITH HIGHS RETURNING TO THE 90S WITH
HEAT INDICES OVER 100 DEGREES POSSIBLE AGAIN.

DURING VERY HOT WEATHER IT IS CRITICAL TO STAY HYDRATED BY
DRINKING PLENTY OF WATER. STRENUOUS OUTDOOR ACTIVITIES SHOULD BE
SCHEDULED DURING THE EARLY MORNING OR EVENING HOURS. WEAR LIGHT
WEIGHT AND LOOSE FITTING CLOTHING...AND REMAIN IN AIR CONDITIONED
LOCATIONS.

STAY TUNED TO NWS CHICAGO OR YOUR LOCAL MEDIA OUTLETS FOR FORECAST
UPDATES AND STATEMENTS ON THIS DEVELOPING HEAT WAVE.

HOT AND HUMID CONDITIONS LIKELY...

A STRONG UPPER LEVEL HIGH PRESSURE SYSTEM WILL DEVELOP OVER THE
CENTRAL PLAINS AND BUILD EAST INTO THE REGION PUMPING A HOT AND
HUMID AIRMASS INTO NORTHERN ILLINOIS AND NORTHWEST INDIANA BY
SUNDAY AND LASTING THROUGH MUCH OF NEXT WEEK.

HEAT AND HUMIDITY WILL BUILD THIS WEEKEND WITH HIGHS CLIMBING INTO
THE 90S BY SUNDAY AND MONDAY. HEAT INDICES ON SUNDAY WILL LIKELY
CLIMB TO AROUND 100 DEGREES...AND PROBABLY TO AROUND 105 DEGREES
MONDAY. BY TUESDAY...SOME SLIGHT RELIEF FROM THE HEAT IS
POSSIBLE...ESPECIALLY CLOSE TO THE LAKE.

HEAT IS THEN FORECAST TO REBUILD BACK INTO THE REGION DURING THE
MIDDLE TO END OF THE WEEK WITH HIGHS RETURNING TO THE 90S WITH
HEAT INDICES OVER 100 DEGREES POSSIBLE AGAIN.



IZZI

Special Weather Statement

..HOT AND VERY HUMID CONDITIONS EXPECTED LATE WEEKEND INTO NEXT WEEK...

AN UPPER LEVEL HIGH PRESSURE IS EXPECTED TO BUILD INTO THE
CENTRAL UNITED STATES OVER THE WEEKEND AND CONTINUE TO INFLUENCE
THE WEATHER THROUGH NEXT WEEK. THIS IS EXPECTED TO RESULT IN HOT
AND VERY HUMID CONDITIONS FOR MUCH OF NORTHERN ILLINOIS AND
NORTHWEST INDIANA BEGINNING SUNDAY AFTERNOON AND CONTINUING
THROUGH THURSDAY. A BRIEF BREAK IN THE HEAT IS EXPECTED TUESDAY.

TEMPERATURES SUNDAY ARE EXPECTED TO RISE INTO THE LOWER 90S SUNDAY
WITH HEAT INDEX VALUES APPROACHING 100 DEGREES. THEN ON MONDAY
TEMPERATURES ARE EXPECTED TO WARM FURTHER INTO THE LOWER 90S WITH
HEAT INDEX VALUES POSSIBLY PUSHING ABOVE 100 DEGREES TO 105 ALONG
AND WEST OF A ROCKFORD TO PONTIAC LINE.

AFTER MINOR RELIEF IN THE HEAT AND HUMIDITY TUESDAY...TEMPERATURES
WEDNESDAY AND THURSDAY MAY PUSH INTO THE MIDDLE 90S. HEAT INDEX
VALUES MAY ALSO PUSH BACK ABOVE 100 DEGREES BOTH OF THESE DAYS AS
WELL.

DURING VERY HOT WEATHER IT IS CRITICAL TO STAY HYDRATED BY
DRINKING PLENTY OF WATER. STRENUOUS OUTDOOR ACTIVITIES SHOULD BE
SCHEDULED DURING THE EARLY MORNING OR EVENING HOURS. WEAR LIGHT
WEIGHT AND LOOSE FITTING CLOTHING...AND REMAIN IN AIR CONDITIONED
LOCATIONS.

STAY TUNED TO NWS CHICAGO OR YOUR LOCAL MEDIA OUTLETS FOR FORECAST
UPDATES AND STATEMENTS ON THIS DEVELOPING HEAT WAVE.

HOT AND VERY HUMID CONDITIONS EXPECTED TO RETURN SUNDAY AND
PERSIST THROUGH THURSDAY. AFTERNOON TEMPERATURES ARE EXPECTED TO
RISE INTO THE LOWER 90S SUNDAY...AND POSSIBLY INTO THE MIDDLE 90S
MONDAY THROUGH THURSDAY. A BRIEF BREAK IN THE HEAT AND HUMIDITY IS
POSSIBLE TUESDAY. AFTERNOON HEAT INDEX VALUES BETWEEN 100 AND 110
DEGREES WILL BE POSSIBLE SUNDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS SATURDAY...MONDAY NIGHT AND
TUESDAY...AND AGAIN THURSDAY.

Sent from my blackberry

In an unusual move, "excessive heat watches" already issued by the Wx Svc starting Sun AM & running thru next Thurs in downstate & west IL.
Sent from my blackberry

HOT...HUMID WEATHER WILL RETURN TO THE REGION THIS WEEKEND AND
WILL CONTINUE INTO EARLY NEXT WEEK. EARLY INDICATIONS ARE THAT
DAYTIME HIGH TEMPERATURES WILL RISE TO AROUND 90 ACROSS MUCH OF
THE OUTLOOK AREA SATURDAY...AND INTO THE LOWER TO MIDDLE 90S
SUNDAY THROUGH WEDNESDAY. PEAK AFTERNOON HEAT INDEX VALUES BETWEEN
100 AND 110 DEGREES ARE POSSIBLE SUNDAY INTO WEDNESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SATURDAY...AND AGAIN MONDAY
NIGHT AND TUESDAY.

.

THERE IS THE POTENTIAL FOR PERIODIC THUNDERSTORMS FROM THURSDAY
NIGHT THROUGH SATURDAY.

HOT...HUMID WEATHER WILL RETURN TO THE REGION THIS WEEKEND AND
WILL CONTINUE INTO EARLY NEXT WEEK. EARLY INDICATIONS ARE THAT
DAYTIME HIGH TEMPERATURES WILL BE IN THE UPPER 80S ACROSS MUCH OF
THE OUTLOOK AREA SATURDAY...AND IN THE LOWER 90S SUNDAY THROUGH
TUESDAY. PEAK AFTERNOON HEAT INDEX VALUES BETWEEN 100 AND 110
DEGREES ARE POSSIBLE SUNDAY INTO TUESDAY.

DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A CHANCE OF SCATTERED THUNDERSTORMS THIS AFTERNOON AND
TONIGHT MAINLY OVER CENTRAL AND WESTERN ILLINOIS...ROUGHLY SOUTH
AND WEST OF A LINE FROM THE QUAD CITIES...TO PONTIAC...TO GIBSON
CITY. WHILE SEVERE WEATHER IS NOT ANTICIPATED...ANY THUNDERSTORMS
WHICH MAY OCCUR WILL BE CAPABLE OF PRODUCING BRIEF HEAVY DOWNPOURS
AND OCCASIONAL CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG PORTIONS OF
THE INDIANA SHORE OF LAKE MICHIGAN WEDNESDAY AND WEDNESDAY NIGHT.

THERE WILL BE A CHANCE OF OCCASIONAL THUNDERSTORMS ACROSS
PORTIONS OF THE AREA FROM THURSDAY NIGHT THROUGH FRIDAY
NIGHT...AND AGAIN ON MONDAY.

HOT AND HUMID WEATHER IS EXPECTED TO RETURN TO THE REGION THIS
WEEKEND. EARLY INDICATIONS ARE THAT TEMPERATURES ON SUNDAY AND
MONDAY MAY TOP 90 DEGREES...WITH AFTERNOON HEAT INDEX VALUES OF
100 TO 105 DEGREES.

PATCHY FOG WILL CONTINUE TO AFFECT SOME PORTIONS OF NORTHERN
ILLINOIS AND NORTHWEST INDIANA EARLY THIS MORNING. WHILE MANY
AREAS WILL SEE VISIBILITY IN THE 1 TO 3 MILE RANGE...SOME PLACES
WILL SEE LOCALLY DENSE FOG WITH VISIBILITY A QUARTER MILE OR
LESS. FOG WILL QUICKLY BURN OFF THIS MORNING AS THE SUN GETS
HIGHER IN THE SKY...BUT ANYONE HEADING OUT EARLY ON THIS TUESDAY
MORNING SHOULD BE PREPARED FOR SOME LOCALLY DENSE FOG AND RAPIDLY
CHANGING VISIBILITY CONDITIONS OVER SHORT DISTANCES. FOG SHOULD
LIFT BY AROUND 8 AM CDT.

.DAY ONE...TODAY AND TONIGHT.

PATCHY FOG IS POSSIBLE EARLY THIS MORNING...MAINLY ACROSS PORTIONS
OF NORTH CENTRAL ILLINOIS. DENSE FOG IS NOT EXPECTED TO BECOME
WIDESPREAD...THOUGH A FEW LOCAL SPOTS MAY SEE VISIBILITY REDUCED
TO LESS THAN A MILE THROUGH SUNRISE.

THERE IS A CHANCE OF SCATTERED THUNDERSTORMS THIS AFTERNOON AND
TONIGHT MAINLY OVER CENTRAL AND WESTERN ILLINOIS...ROUGHLY SOUTH
AND WEST OF A LINE FROM THE QUAD CITIES...TO PONTIAC...TO GIBSON
CITY. WHILE SEVERE WEATHER IS NOT ANTICIPATED...ANY THUNDERSTORMS
WHICH MAY OCCUR WILL BE CAPABLE OF PRODUCING BRIEF HEAVY DOWNPOURS
AND OCCASIONAL CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE WILL BE AN INCREASED RISK OF RIP CURRENTS ALONG PORTIONS OF
THE INDIANA SHORE OF LAKE MICHIGAN WEDNESDAY AND WEDNESDAY NIGHT.

THERE WILL BE A CHANCE OF OCCASIONAL THUNDERSTORMS ACROSS
PORTIONS OF THE AREA FROM THURSDAY NIGHT THROUGH FRIDAY
NIGHT...AND AGAIN ON MONDAY.

HOT AND HUMID WEATHER IS EXPECTED TO RETURN TO THE REGION THIS
WEEKEND. EARLY INDICATIONS ARE THAT TEMPERATURES ON SUNDAY AND
MONDAY MAY TOP 90 DEGREES...WITH AFTERNOON HEAT INDEX VALUES OF
100 TO 105 DEGREES.

DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

TEMPERATURES ARE IN THE LOW TO MIDDLE 90S WITH HIGH HUMIDITY
CONTRIBUTING TO HEAT INDEX VALUES OF 105 TO 110 DEGREES SOUTH OF A
LINE FROM LIVINGSTON COUNTY IN ILLINOIS EAST TO JASPER COUNTY IN
INDIANA...WITH ALL OTHER AREAS IN NORTHERN ILLINOIS AND NORTHWEST
INDIANA EXPERIENCING HEAT INDEX VALUES IN THE MID TO UPPER 90S.

THIS DANGEROUS HEAT WILL IMPROVE TONIGHT BEHIND A COLD FRONT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THERE WILL BE A SLIGHT CHANCE FOR THUNDERSTORMS ON TUESDAY AND
TUESDAY NIGHT AND AGAIN THURSDAY THROUGH SATURDAY.

.

DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME OF WHICH COULD PRODUCE:
HAIL TO ONE INCH.
STRONG DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
LOCALLY HEAVY RAINFALL.

AREAS AFFECTED AND TIMING:

ALL OF NORTHERN ILLINOIS AND NORTHWEST INDIANA THIS AFTERNOON.
HOWEVER...SLIGHTLY BETTER POTENTIAL WILL BE MAINLY SOUTH OF THE
ILLINOIS AND KANKAKEE RIVERS.

DISCUSSION:

CLOUD COVER FROM THIS MORNINGS THUNDERSTORMS MAY HELP PREVENT
THUNDERSTORMS ACROSS NORTHERN ILLINOIS THIS AFTERNOON.
HOWEVER...CLOUD COVER REMAINS LOW ACROSS CENTRAL ILLINOIS SOUTH
OF THE OUTFLOW BOUNDARY. IT APPEARS THAT THIS MAY BE THE AREA
MORE SUSCEPTIBLE TO ADDITIONAL THUNDERSTORMS THIS AFTERNOON.
HOWEVER...DUE TO THE LACK OF ANY SIGNIFICANT LARGE SCALE FORCING
FOR ASCENT...UNCERTAINTY IS HIGH IN THUNDERSTORM POTENTIAL THIS
AFTERNOON.

TEMPERATURES ARE FORECAST TO REACH THE LOWER 90S WITH HIGH
HUMIDITY CONTRIBUTING TO HEAT INDEX VALUES OF 105 TO 110 DEGREES
SOUTH OF A LINE FROM LIVINGSTON COUNTY IN ILLINOIS EAST TO JASPER
COUNTY IN INDIANA...WITH ALL OTHER AREAS IN NORTHERN ILLINOIS AND
NORTHWEST INDIANA FORECAST TO OBSERVE HEAT INDEX VALUES OF AROUND
100 DEGREES.

...SPECIAL WEATHER STATEMENT...

AT 828 AM...STRONG WINDS TO 55 MPH CONTINUE ALONG AND BEHIND A LINE
OF THUNDERSTORMS EXTENDING FROM WINTHROP HARBOR TO EVANSTON
TO WILLOW SPRINGS TO CHANNAHON...MOVING SOUTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
HICKORY HILLS... BEDFORD PARK... HOMER GLEN...
STICKNEY... FOREST VIEW... CICERO...
LOGAN SQUARE... JUSTICE... SUMMIT...
ROGERS PARK... ROCKDALE... BERWYN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THESE STORMS HAVE PASSED.

HE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN COOK COUNTY IN NORTHEAST ILLINOIS...
CENTRAL WILL COUNTY IN NORTHEAST ILLINOIS...
NORTHEASTERN JASPER COUNTY IN NORTHWEST INDIANA...
LAKE COUNTY IN NORTHWEST INDIANA...
PORTER COUNTY IN NORTHWEST INDIANA...

* UNTIL 915 AM CDT/1015 AM EDT/

* AT 819 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 12 MILES EAST OF WINTHROP HARBOR TO 18 MILES
NORTHEAST OF KENILWORTH TO 13 MILES NORTHEAST OF MONTROSE HARBOR TO
BLUE ISLAND TO 6 MILES SOUTHEAST OF MANHATTAN...AND MOVING EAST AT
65 MPH.

* LOCATIONS IMPACTED INCLUDE...
FLOSSMOOR...DOLTON...OLYMPIA FIELDS...PEOTONE...PARK FOREST...
BURNHAM...UNIVERSITY PARK...GLENWOOD...CHICAGO HEIGHTS...CALUMET
CITY...WHITING...STEGER...LANSING...HAMMOND...LYNWOOD...
CHICAGO...MUNSTER...HIGHLAND...GRIFFITH AND SCHERERVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

.NOW...

A LINE OF SEVERE THUNDERSTORMS IS MOVING EAST AT 60 MPH.
ASSOCIATED WITH THIS STORMS ARE GUSTS IN EXCESS OF 60 MPH AND
LOCALLY HEAVY RAINFALL. PLEASE EXERCISE CAUTION IF AFFECTED BY
THESE STORMS.

..SPECIAL WEATHER STATEMENT...

AT 756 AM...STRONG WINDS TO 55 MPH CONTINUE ALONG AND BEHIND A LINE
OF THUNDERSTORMS EXTENDING FROM SPRING GROVE TO EAST DUNDEE TO ST.
CHARLES TO SUGAR GROVE...MOVING EAST AT 70 MPH.

WINDS UP TO 55 MPH...ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
LONG LAKE... INVERNESS... ROUND LAKE...
BATAVIA... BARRINGTON... WAUCONDA...
CHANNEL LAKE... HOFFMAN ESTATES... LAKE CATHERINE...
STREAMWOOD... TOWER LAKES... BARTLETT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THESE STORMS HAVE PASSED.

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
BOONE COUNTY IN NORTH CENTRAL ILLINOIS...
NORTHWESTERN COOK COUNTY IN NORTHEAST ILLINOIS...
DE KALB COUNTY IN NORTH CENTRAL ILLINOIS...
WESTERN DUPAGE COUNTY IN NORTHEAST ILLINOIS...
KANE COUNTY IN NORTHEAST ILLINOIS...
NORTHERN KENDALL COUNTY IN NORTHEAST ILLINOIS...
WESTERN LAKE COUNTY IN NORTHEAST ILLINOIS...
NORTHERN LA SALLE COUNTY IN NORTH CENTRAL ILLINOIS...
EASTERN LEE COUNTY IN NORTH CENTRAL ILLINOIS...
MCHENRY COUNTY IN NORTHEAST ILLINOIS...
SOUTHEASTERN OGLE COUNTY IN NORTH CENTRAL ILLINOIS...
EASTERN WINNEBAGO COUNTY IN NORTH CENTRAL ILLINOIS...

* UNTIL 800 AM CDT

* AT 658 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTHEAST OF
DURAND TO WINNEBAGO TO FRANKLIN GROVE TO 5 MILES WEST OF WALTON...
AND MOVING EAST AT 70 MPH.

* LOCATIONS IMPACTED INCLUDE...
ROCHELLE...BELVIDERE...GENOA...DE KALB...HARVARD...MARENGO...
SHABBONA...SYCAMORE...WOODSTOCK...WONDER LAKE...ALGONQUIN...
MCHENRY...SANDWICH...SLEEPY HOLLOW...LITTLE ROCK...
CARPENTERSVILLE...ELGIN...EAST DUNDEE...PISTAKEE HIGHLANDS AND
ISLAND LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR LEE...WESTERN
DE KALB...BOONE...WINNEBAGO...OGLE AND NORTHWESTERN LA SALLE COUNTIES
UNTIL 715 AM CDT...

AT 645 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF LAKE SUMMERSET
TO PECATONICA TO MOUNT MORRIS TO ROCK FALLS...MOVING EAST AT 70 MPH.

LOCATIONS IMPACTED INCLUDE...
DIXON...OREGON...WALTON...ROCKTON...ROCKFORD AIRPORT...ROCKFORD...
MACHESNEY PARK...SOUTH BELOIT...LOVES PARK...ROCHELLE...
BELVIDERE...SHABBONA...WINNEBAGO...BYRON...STILLMAN VALLEY...
FRANKLIN GROVE...AMBOY...ASHTON...ROSCOE AND CHERRY VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR LEE...WESTERN
DE KALB...BOONE...WINNEBAGO...OGLE AND NORTHWESTERN LA SALLE COUNTIES
UNTIL 715 AM CDT...

AT 626 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES NORTHWEST OF WINSLOW
TO 10 MILES WEST OF FREEPORT TO 10 MILES NORTHWEST OF MILLEDGEVILLE
TO 17 MILES WEST OF TAMPICO...MOVING EAST AT 70 MPH.

LOCATIONS IMPACTED INCLUDE...
MOUNT MORRIS...DIXON...OREGON...WALTON...ROCKTON...ROCKFORD
AIRPORT...ROCKFORD...MACHESNEY PARK...SOUTH BELOIT...LOVES PARK...
ROCHELLE...BELVIDERE...SHABBONA...FORRESTON...POLO...PECATONICA...
DURAND...WINNEBAGO...BYRON AND STILLMAN VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
BOONE COUNTY IN NORTH CENTRAL ILLINOIS...
WESTERN DE KALB COUNTY IN NORTH CENTRAL ILLINOIS...
NORTHWESTERN LA SALLE COUNTY IN NORTH CENTRAL ILLINOIS...
LEE COUNTY IN NORTH CENTRAL ILLINOIS...
OGLE COUNTY IN NORTH CENTRAL ILLINOIS...
WINNEBAGO COUNTY IN NORTH CENTRAL ILLINOIS...

* UNTIL 715 AM CDT

* AT 609 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
QUARTER SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.
THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 23 MILES WEST
OF WINSLOW TO 24 MILES SOUTHWEST OF WINSLOW TO 28 MILES WEST OF
MILLEDGEVILLE TO 36 MILES WEST OF TAMPICO...AND MOVING EAST AT 70
MPH.

* LOCATIONS IMPACTED INCLUDE...
MOUNT MORRIS...DIXON...OREGON...WALTON...ROCKTON...ROCKFORD
AIRPORT...MACHESNEY PARK...ROCKFORD...SOUTH BELOIT...LOVES PARK...
ROCHELLE...BELVIDERE...SHABBONA...FORRESTON...POLO...LAKE
SUMMERSET...PECATONICA...DURAND...WINNEBAGO AND BYRON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
625 IN EFFECT UNTIL NOON CDT TODAY FOR THE FOLLOWING AREAS

IN ILLINOIS THIS WATCH INCLUDES 15 COUNTIES

IN NORTH CENTRAL ILLINOIS

BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO

IN NORTHEAST ILLINOIS

COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE IL MCHENRY WILL

IN INDIANA THIS WATCH INCLUDES 4 COUNTIES

IN NORTHWEST INDIANA

JASPER LAKE IN NEWTON
PORTER

THIS INCLUDES THE CITIES OF...AURORA...BELVIDERE...CHICAGO...
DEKALB...DIXON...GARY...JOLIET...KANKAKEE...MOROCCO...MORRIS...
OREGON...OSWEGO...OTTAWA...RENSSELAER...ROCKFORD...VALPARAISO...
WAUKEGAN...WHEATON AND WOODSTOCK.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME OF WHICH COULD PRODUCE:
HAIL TO ONE INCH.
STRONG DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
LOCALLY HEAVY RAINFALL.

AREAS AFFECTED AND TIMING:

ALL OF NORTHERN ILLINOIS AND NORTHWEST INDIANA EARLY THIS
MORNING THROUGH THIS AFTERNOON.

DISCUSSION:

A CLUSTER OF THUNDERSTORMS WILL CONTINUE TO SHIFT EAST INTO
NORTHERN ILLINOIS AND NORTHWEST INDIANA EARLY THIS MORNING AS A
MID LEVEL DISTURBANCE TRACKS EAST ACROSS THE REGION. AS THESE
THUNDERSTORMS MOVE EAST...THEY WILL ENCOUNTER A STRONGLY
UNSTABLE AND MOISTURE RICH ATMOSPHERE WHICH WILL ENABLE THESE
STORMS TO MAKE A STRONG PUSH EAST THIS MORNING. ALTHOUGH LARGE
HAIL WILL BE POSSIBLE...THE MAIN THREAT WITH THESE STORMS WILL
BE STRONG DAMAGING WIND GUSTS AS WELL AS LOCALLY HEAVY RAINFALL.

TEMPERATURES ARE FORECAST TO REACH THE LOWER 90S WITH HIGH
HUMIDITY CONTRIBUTING TO HEAT INDEX VALUES OF 105 TO 110 DEGREES
SOUTH OF A LINE FROM LIVINGSTON COUNTY IN ILLINOIS EAST TO JASPER
COUNTY IN INDIANA...WITH ALL OTHER AREAS IN NORTHERN ILLINOIS AND
NORTHWEST INDIANA FORECAST TO OBSERVE HEAT INDEX VALUES OF AROUND
100 DEGREES.

.NOW...
AN AREA OF STRONG THUNDERSTORMS OVER CENTRAL IOWA AT 330 AM CDT WILL
MOVE EAST INTO NORTHWEST AND NORTH CENTRAL ILLINOIS EARLY THIS
MORNING. AT THEIR PRESENT SPEED...THESE STORMS WILL MOVE INTO THE
POLO AND FORRESTON AREAS AROUND 645 AM CDT...AND INTO THE OREGON...
ROCKFORD AND SOUTH BELOIT AREAS SHORTLY AFTER 7 AM CDT. CLOUD TO
GROUND LIGHTNING...LOCALLY HEAVY DOWNPOURS AND WIND GUSTS NEAR 50
MPH WILL BE POSSIBLE WITH THESE STORMS.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...A FEW WHICH COULD PRODUCE:
DAMAGING WIND GUSTS TO 60 MPH.
LOCALLY HEAVY RAINFALL.

AREAS AFFECTED AND TIMING:

NORTH OF U.S. 34 EARLY THIS EVENING...THEN ACROSS NORTH CENTRAL
AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA OVERNIGHT. THERE
IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS NORTH AND WEST OF
I-57 OVERNIGHT.

DISCUSSION:

AS A MID LEVEL DISTURBANCE CONTINUES MOVING EAST ACROSS SOUTHERN
WISCONSIN THERE WILL BE ISOLATED THUNDERSTORMS IN NORTH CENTRAL
AND NORTHEAST EARLY THIS EVENING. INSTABILITY DECREASES AND
INHIBITION INCREASES WEST TO EAST ACROSS THE REGION. THIS WILL
RESULT IN THUNDERSTORMS WEAKENING AS THEY MOVE INTO NORTHEAST
ILLINOIS.

A STRONGER MID LEVEL WAVE WILL MOVE EAST-SOUTHEAST FROM THE
DAKOTAS TO SOUTHWEST WISCONSIN BY MONDAY MORNING. THUNDERSTORMS
ASSOCIATED WITH THIS WAVE ARE EXPECTED TO MOVE EAST-SOUTHEAST
OVERNIGHT AND MAY REACH NORTH CENTRAL AND NORTHEAST ILLINOIS BY
DAYBREAK. A FEW OF THESE STORMS MAY PRODUCE DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE HEAT INDEX MAY APPROACH 105 DEGREES...THE DANGER
LEVEL...MONDAY AFTERNOON ALONG AND SOUTH OF U.S. 6.

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS MONDAY THROUGH
THE END OF THE WEEK. THERE IS A SLIGHT RISK OF SEVERE WEATHER
MONDAY AND TUESDAY ACROSS NORTH CENTRAL AND NORTHEAST
ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME OF WHICH COULD PRODUCE:
HAIL TO ONE INCH.
STRONG DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
LOCALLY HEAVY RAINFALL.

AREAS AFFECTED AND TIMING:

NORTH OF A LINE FROM LA SALLE NORTHEAST TO WAUKEGAN THIS
AFTERNOON AND ALL OF NORTHERN ILLINOIS AND NORTHWEST INDIANA LATE
TONIGHT INTO EARLY MONDAY MORNING.

DISCUSSION:

A SERIES OF MID LEVEL DISTURBANCES WILL MOVE INTO PORTIONS OF
THE UPPER MIDWEST TODAY AS LOW LEVEL MOISTURE AND INSTABILITY
INCREASES. THIS WILL HELP GENERATE SHOWERS AND THUNDERSTORMS IN
AREAS FROM NORTHEAST IOWA INTO SOUTHERN WISCONSIN. WITH
TIME...SOME OF THESE THUNDERSTORMS COULD SHIFT SOUTH INTO
NORTHERN ILLINOIS AND BRING AN ISOLATED THREAT FOR LARGE HAIL
AND STRONG DAMAGING WINDS. ANOTHER STRONG MID LEVEL WAVE WILL
MOVE ACROSS THE REGION LATE TONIGHT AND HELP THE FURTHER
DEVELOPMENT OF THUNDERSTORMS...SOME OF WHICH COULD TRANSITION
INTO A LARGER COMPLEX. IF THIS OCCURS...ALL OF NORTHERN ILLINOIS
AND NORTHWEST INDIANA COULD OBSERVE THUNDERSTORMS LATE TONIGHT
INTO EARLY MONDAY MORNING. STRONG DAMAGING WIND GUSTS WOULD BE
THE PRIMARY THREAT FROM THIS ROUND OF THUNDERSTORMS.

DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS SUNDAY AFTERNOON
THROUGH THURSDAY.

.

DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

SCATTERED THUNDERSTORMS. NO SEVERE STORMS ARE EXPECTED.

AREAS AFFECTED AND TIMING:

MAINLY SOUTH AND WEST OF LAKE MICHIGAN DURING THE AFTERNOON.

DISCUSSION:

A COMBINATION OF A WEAK COLD FRONT AND A LAKE BREEZE PUSHING
INLAND INTO A MODERATELY UNSTABLE AIR MASS...MAY BE ENOUGH TO
TRIGGER A FEW AFTERNOON THUNDERSTORMS. LACK OF WIND SHEAR WILL
PREVENT STORMS FROM BECOMING ORGANIZED OR SEVERE. ANY STORMS
THAT DEVELOP WILL DISSIPATE BY SUNDOWN.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY THROUGH TUESDAY.

.

THERE IS A CHANCE FOR THUNDERSTORMS THIS EVENING AND TONIGHT AS A
COOL FRONT APPROACHES THE AREA. THE BEST CHANCE WILL BE NORTH OF
INTERSTATE 80. THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE
LEVELS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE FOR THUNDERSTORMS WEDNESDAY...THEN AGAIN LATE
THIS WEEKEND.

THERE IS A CHANCE FOR THUNDERSTORMS THIS EVENING AND TONIGHT AS A
COOL FRONT APPROACHES THE AREA. THE BEST CHANCE WILL BE NORTH OF
INTERSTATE 80. THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE
LEVELS.

THERE IS A CHANCE FOR THUNDERSTORMS THIS EVENING AND TONIGHT AS A
COOL FRONT APPROACHES THE AREA. THE BEST CHANCE WILL BE NORTH OF
INTERSTATE 80. THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE
LEVELS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE FOR THUNDERSTORMS WEDNESDAY...THEN AGAIN LATE
THIS WEEKEND.

.NOW...

WITH THE LAKE BREEZE BEGINNING TO MOVE ONSHORE...THE WIND WILL
SHIFT TO A MORE EASTERLY COMPONENT. ALONG WITH THIS WIND
SHIFT...IN THE STEAD OF THE LAKE BREEZE...TEMPERATURES WILL DROP
SEVERAL DEGREES WITH THE COOLER WIND MOVING IN OFF THE LAKE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS SATURDAY...ESPECIALLY SOUTH OF
INTERSTATE 80. IF STORMS DO INDEED FORM THEN SOME COULD BECOME
SEVERE WITH DAMAGING WINDS BEING THE PRIMARY THREAT.

THE THREAT OF THUNDERSTORMS WILL INCREASE AGAIN INTO THE MIDDLE
AND END OF NEXT WEEK

THE HEAT ADVISORY WILL EXPIRE AT 9 PM CDT THIS EVENING.

DAY ONE...TONIGHT.

HEAT INDEX READINGS OVER 100 DEGREES WILL CONTINUE THIS EVENING
OVER NORTH CENTRAL ILLINOIS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE OF THUNDERSTORMS SATURDAY...ESPECIALLY SOUTH OF
INTERSTATE 80. IF STORMS DO INDEED FORM THEN SOME COULD BECOME
SEVERE WITH DAMAGING WINDS BEING THE PRIMARY THREAT.

THE THREAT OF THUNDERSTORMS WILL INCREASE AGAIN INTO THE MIDDLE
AND END OF NEXT WEEK.

WINNEBAGO-BOONE-OGLE-LEE-DE KALB-LA SALLE-LIVINGSTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...OREGON...DIXON...
DEKALB...OTTAWA...PONTIAC
341 PM CDT FRI JUL 1 2011

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING...

A HEAT ADVISORY REMAINS IN EFFECT. THE HEAT INDEX WILL BE IN THE
105 TO 110 DEGREE RANGE ACROSS NORTH CENTRAL ILLINOIS THE REST OF
THIS AFTERNOON...AND GRADUALLY LOWER TO AROUND 90 BY MID EVENING.

* IMPACTS...THE COMBINATION OF HEAT AND HUMIDITY WILL CREATE
OPPRESSIVE CONDITIONS WHICH MAY CAUSE HEAT RELATED ILLNESSES
TO DEVELOP WITH PROLONGED EXPOSURE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!

.NOW...

THROUGH 430 PM CDT...STRONG WINDS...POSSIBLY GUSTING OVER 40
MPH...WILL OCCUR OVER NORTHWEST INDIANA AND EAST CENTRAL ILLINOIS
IN THE WAKE OF AN AREA OF RAPIDLY DIMINISHING THUNDERSTORMS.

...HEAT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE HEAT
ADVISORY.

THUNDERSTORMS PERSISTING INTO EARLY THIS AFTERNOON OVER SOUTHERN
LAKE MICHIGAN AND FAR NORTHWEST INDIANA HAVE MAINTAINED THICK
CLOUD COVER AND COOL THUNDERSTORM OUTFLOW AIR. WHILE THE
THUNDERSTORMS ARE EXPECTED TO END MID AFTERNOON THE REMAINING
CLOUDS AND COOLED AIR WILL LIMIT THE RISE IN TEMPERATURES ACROSS
NORTHEAST ILLINOIS TO ONLY THE UPPER 80S AND LOWER 90S. PEAK HEAT
INDICES WILL BE NEAR 100...WHICH IS BELOW THE 105 DEGREE THRESHOLD
FOR A HEAT ADVISORY. THUS...THE HEAT ADVISORY FOR NORTHEAST
ILLINOIS HAS BEEN CANCELED.

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN LAKE
AND SOUTHEASTERN COOK COUNTIES UNTIL 215 PM CDT...

AT 133 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
GARY...MOVING SOUTH AT 15 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
HIGHLAND AND MUNSTER AROUND 150 PM CDT.
GRIFFITH AND LYNWOOD AROUND 155 PM CDT.
SCHERERVILLE...DYER AND MERRILLVILLE AROUND 200 PM CDT.
CROWN POINT AROUND 210 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

.NOW...
PERSONS ACROSS COOK COUNTY CAN EXPECT WINDS UP TO 40 MPH THROUGH
230 PM...AS OUTFLOW FROM THUNDERSTORMS ACROSS LAKE MICHIGAN MOVES
ACROSS THE AREA. THESE STRONG WINDS WILL OCCUR OUTSIDE OF THE AREA
OF THUNDERSTORMS.

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN COOK COUNTY IN NORTHEAST ILLINOIS...
NORTHERN LAKE COUNTY IN NORTHWEST INDIANA...

* UNTIL 215 PM CDT

* AT 110 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES
NORTHEAST OF EAST CHICAGO...AND MOVING SOUTH AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
WHITING...EAST CHICAGO...BURNHAM...HAMMOND...GARY...DOLTON...LAKE
STATION...CALUMET CITY...HOBART...LANSING...HIGHLAND...MUNSTER...
GRIFFITH...GLENWOOD...LYNWOOD...MERRILLVILLE...SCHERERVILLE...ST.
JOHN...LAKES OF THE FOUR SEASONS AND CROWN POINT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

...SPECIAL WEATHER STATEMENT...

AT 110 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA
OF STRONG THUNDERSTORMS MOVING ONSHORE OFF LAKE MICHIGAN FROM THE
FAR SOUTHEAST SIDE OF CHICAGO TO OGDEN DUNES...MOVING SOUTH AT 10
MPH.

LOCATIONS IMPACTED INCLUDE...PORTER AROUND 120 PM...WHITING...OGDEN
DUNES...AND BURNS HARBOR AROUND 130 PM...EAST CHICAGO...AND PORTAGE
AROUND 140 PM...HAMMOND AND GARY AROUND 150 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.A LOOK BACK AT THE CLIMATE FOR THE MONTH OF JUNE 2011 FOR
CHICAGO AND ROCKFORD...

AT CHICAGO...THE AVERAGE HIGH TEMPERATURE WAS 79.4 DEGREES WHICH IS
0.2 DEGREES ABOVE NORMAL. THE AVERAGE LOW TEMPERATURE WAS 59.5
DEGREES WHICH IS 2.3 DEGREES ABOVE NORMAL. THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 69.5 DEGREES WHICH IS 1.3 DEGREES ABOVE NORMAL.
3.39 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 0.24 INCHES BELOW
NORMAL.

NO RECORDS WERE BROKEN AT CHICAGO FOR THE MONTH OF JUNE.

AT ROCKFORD...THE AVERAGE HIGH TEMPERATURE WAS 80.7 DEGREES WHICH
IS 0.8 DEGREES ABOVE NORMAL. THE AVERAGE LOW TEMPERATURE WAS 59.8
DEGREES WHICH IS 2.2 DEGREES ABOVE NORMAL. THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 70.3 DEGREES WHICH IS 1.5 DEGREES ABOVE NORMAL.
3.44 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 1.36 INCHES BELOW
NORMAL.

NO RECORDS WERE BROKEN AT ROCKFORD FOR THE MONTH OF JUNE.

.NOW...
IT WILL BE MOSTLY CLOUDY THROUGH LATE MORNING WITH WIDELY
SCATTERED LIGHT SHOWERS. SKIES WILL BECOME PARTLY SUNNY THIS
AFTERNOON AND IT WILL BECOME HOT AND HUMID.

A HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT CDT
TONIGHT.

* HEAT INDEX...TEMPERATURES ACROSS THE ADVISORY AREA ARE
FORECAST TO REACH THE MIDDLE AND UPPER 90S...WITH HIGH
HUMIDITY CONTRIBUTING TO HEAT INDEX VALUES OF AROUND 105
DEGREES.

* IMPACTS...THE COMBINATION OF HEAT AND HUMIDITY WILL CREATE
OPPRESSIVE CONDITIONS WHICH MAY CAUSE HEAT RELATED ILLNESSES
TO DEVELOP WITH PROLONGED EXPOSURE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY...CALL 9 1 1.

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT WEATHER IS EXPECTED.
HIGH TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF
FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...
AND CHECK UP ON RELATIVES AND NEIGHBORS.

CHILDREN AND PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES
UNDER ANY CIRCUMSTANCES. THIS IS ESPECIALLY TRUE DURING HOT
WEATHER WHEN THE CAR INTERIOR CAN REACH LETHAL TEMPERATURES IN A
MATTER OF MINUTES!