AS A TROUGH OF LOW PRESSURE CONTINUES TO SHIFT EAST ACROSS THE
MIDWEST...SOUTHERLY FLOW HAS MAINTAINED A STEADY INCREASE EARLY
THIS AFTERNOON. EXPECT THESE STRONG SOUTHERLY WINDS TO PERSIST
THROUGH THE REMAINDER OF THE AFTERNOON WITH SUSTAINED WINDS OF 25
MPH AND WIND GUSTS AS HIGH AS 40 MPH EXPECTED BEFORE WINDS BEGIN
TO DIMINISH EARLY THIS EVENING. ANYONE TRAVELING ACROSS NORTHERN
ILLINOIS AND NORTHWEST INDIANA SHOULD USE CAUTION AS THESE SOUTH
TO NORTH WINDS WILL MAKE FOR DIFFICULT DRIVING AT TIMES FOR HIGH
PROFILE VEHICLES.

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 9 AM CDT FRIDAY.

* TEMPERATURE...EXPECT TEMPERATURES NEAR FREEZING
TONIGHT...RESULTING IN THE POTENTIAL FOR WIDESPREAD FROST.

* IMPACTS...FROST CAN DAMAGE OR KILL SENSITIVE VEGETATION. THE
APPROPRIATE ACTIONS SHOULD BE TAKEN TO PREVENT THIS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

A tornado watch has bn issued 'til 10 PM for southern sections of the Chicago metro area. http://www.spc.noaa.gov/products/watch/ww0216.html

..SPECIAL WEATHER STATEMENT...

AT 614 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM NEAR ELGIN...MOVING EAST AT 55 MPH.

UP TO PENNY SIZE HAIL IS POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
HOFFMAN ESTATES... STREAMWOOD... ELGIN...
EAST DUNDEE... BARTLETT... HANOVER PARK...
WEST DUNDEE... SLEEPY HOLLOW... WAYNE...
INVERNESS... SCHAUMBURG... BARRINGTON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

...SPECIAL WEATHER STATEMENT...

AT 527 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM NEAR BATAVIA...MOVING NORTHEAST AT 55 MPH.

REPORTS OF UP TO PENNY SIZE HAIL HAVE BEEN RECEIVED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WEST CHICAGO... DUPAGE AIRPORT... GENEVA...
BATAVIA... ST. CHARLES... WAYNE...
NORTH AURORA... CAROL STREAM... WINFIELD...
HANOVER PARK... WHEATON... BARTLETT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

.NOW...
SHOWERS AND SCATTERED THUNDERSTORMS OVER LEE...OGLE AND DE KALB
COUNTIES WILL CONTINUE TO RACE NORTHEAST AT 55 MPH. THIS ACTIVITY
WILL BEGIN TO AFFECT BOONE AND KANE COUNTIES BY 515 PM...AND
MCHENRY AND DUPAGE COUNTIES AFTER 530 PM. THE STRONGEST STORMS
WILL PRODUCE CLOUD TO GROUND LIGHTNING...BRIEF HEAVY RAIN AND
SMALL HAIL. ADDITIONAL SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE
ACROSS NORTHERN ILLINOIS INTO THE EARLY EVENING HOURS.

...SPECIAL WEATHER STATEMENT...

AT 455 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM NEAR SHABBONA...MOVING EAST AT 55 MPH.

UP TO PENNY SIZE HAIL IS POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SHABBONA... WATERMAN... HINCKLEY...
LITTLE ROCK... MAPLE PARK... SUGAR GROVE...
ELBURN... GENEVA... BATAVIA...
NORTH AURORA... AURORA... WEST CHICAGO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

NOW...
AN AREA OF RAIN AND EMBEDDED THUNDERSTORMS WILL MOVE ACROSS
PORTIONS OF NORTHERN ILLINOIS AND NORTHWEST INDIANA THROUGH THE
EARLY AFTERNOON HOURS. AT 1115 AM CDT...RADAR INDICATED RAIN AND
THUNDERSTORMS ACROSS MUCH OF CENTRAL AND NORTH CENTRAL
ILLINOIS...WITH THE MOST WIDESPREAD MODERATE RAIN AND
THUNDERSTORMS ALONG AND SOUTH OF THE INTERSTATE 80 CORRIDOR. THIS
AREA OF RAIN AND THUNDERSTORMS WILL CONTINUE TO MOVE EAST ACROSS
THE REMAINDER OF EAST CENTRAL ILLINOIS AND NORTHWEST INDIANA THROUGH
EARLY AFTERNOON...WITH LOCALLY HEAVY DOWNPOURS AND OCCASIONAL
CLOUD TO GROUND LIGHTNING. SOME PONDING OF WATER WILL BE POSSIBLE
IN LOW LYING AREAS SUCH AS DITCHES UNDERPASSES. BE ALERT FOR
STANDING WATER IF TRAVELING ACROSS THE REGION THROUGH THIS
AFTERNOON.

Friday similar to Tuesday storm system. The low will track through southern IL bringing the possibility of severe weather to our southern counties.
We will see the chance of thunderstorms around here, but nothing should be severe. See outlook below:


.DAY ONE...TONIGHT.

ISOLATED THUNDERSTORMS ARE POSSIBLE TOWARD MORNING MAINLY SOUTH OF
THE ILLINOIS AND KANKAKEE RIVER VALLEYS.

PORTIONS OF THE KANKAKEE AND ILLINOIS RIVERS WILL REMAIN IN FLOOD
TODAY AND TONIGHT WITH MANY OTHER RIVERS NEARING BANK FULL.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PORTIONS OF THE KANKAKEE AND ILLINOIS RIVERS WILL REMAIN IN FLOOD
WITH MANY OTHER RIVERS NEARING BANK FULL.

ADDITIONAL PRECIPITATION IS EXPECTED TO CONTINUE FROM FRIDAY...
PERIODICALLY THROUGH THE WEEKEND. THIS WILL PREVENT NEARLY
SATURATED SOILS FROM DRYING. THUS ANY ADDITIONAL PRECIPITATION MAY
NOT BE ABLE TO FILTER INTO THE SOILS AND INSTEAD BECOME RUNOFF.
THIS WILL CAUSE CONTINUED FLOODING AND ELEVATED STREAM FLOW ON
RIVERS THAT ARE ALREADY HIGH WITH ADDITIONAL FLOODING POSSIBLE ON
THE REMAINING RIVERS. IN ADDITION...AREAL FLOODING AWAY FROM
RIVERS WILL ALSO NEED TO BE MONITORED.

THUNDERSTORMS ARE LIKELY LATE FRIDAY AFTERNOON AND EVENING WITH
SOME POTENTIAL FOR SEVERE WEATHER...ESPECIALLY SOUTH OF INTERSTATE
80. THE MAIN SEVERE WEATHER THREATS ARE EXPECTED TO BE LARGE HAIL
AND DAMAGING WINDS WITH ISOLATED TORNADOES POSSIBLE.

PERIODIC THUNDERSTORM CHANCES WILL CONTINUE OVER THE WEEKEND AND
INTO NEXT WEEK.

Severe thunderstorm warnings are popping all over the place south of us. Nothing yet for Northern Illinois

...SPECIAL WEATHER STATEMENT...

AT 716 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS MOVING NORTHEAST AT 55 MPH.

REPORTS OF NICKEL SIZE HAIL HAVE BEEN RECEIVED WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
BENSENVILLE... CICERO... MELROSE PARK...
SCHAUMBURG... HOFFMAN ESTATES... FOREST PARK...
WOOD DALE... STONE PARK... MAYWOOD...
NORTHLAKE... BERWYN... ITASCA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.

AT 658 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CAROL STREAM...MOVING NORTHEAST AT 55 MPH.

UP TO PENNY SIZE HAIL...ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
MEDINAH... ADDISON... ROSELLE...
CAROL STREAM... GLEN ELLYN... LOMBARD...
VILLA PARK... ELMHURST... ITASCA...
ELK GROVE VILLAGE... WOOD DALE... BENSENVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

Tornado watches issued downstate, lots of severe weather reports coming in from Missouri and southern Illinois. We shouldn't see too much of that here, however, severe weather can't be ruled out. See outlook below

WEATHER HAZARDS EXPECTED:

ISOLATED THUNDERSTORMS...A FEW MAY PRODUCE:
HAIL TO ONE INCH.
DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
LOCALLY HEAVY RAINFALL.
CLOUD TO GROUND LIGHTNING.
MODERATE RAINFALL AND BRIEF HEAVY DOWNPOURS.

AREAS AFFECTED AND TIMING:

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO CONTINUE
THROUGH THE LATE EVENING HOURS. THE MOST EXTENSIVE THUNDERSTORM
COVERAGE WILL MAINLY BE SOUTH OF INTERSTATE 80...WITH COVERAGE
MORE ISOLATED NORTH OF INTERSTATE 80. THE GREATEST POTENTIAL FOR
SEVERE THUNDERSTORMS WILL BE ALONG AND SOUTH OF A LINE FROM
PONTIAC TO KANKAKEE TO CHESTERTON.

DISCUSSION:

AN AREA OF LOW PRESSURE CONTINUES TO DEEPEN AS IT APPROACHES ST.
LOUIS. THE LOW IS EXPECTED TO CONTINUE TO STRENGTHEN AS IT LIFTS
NORTHEAST INTO WEST-CENTRAL INDIANA BY EARLY THIS EVENING. THIS
LOW PRESSURE SYSTEM WILL SERVE AS THE FOCAL POINT FOR
THUNDERSTORM DEVELOPMENT ALONG AND SOUTH OF AN ASSOCIATED WARM
FRONT THROUGH LATE THIS EVENING.

SOME OF THE THUNDERSTORMS THAT DEVELOP AHEAD OF THE LOW WILL BE
CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. WARM AIR
OVERRUNNING THE WARM FRONT MAY ACT TO LIMIT THUNDERSTORM
DEVELOPMENT DURING THE LATE AFTERNOON HOURS. WITH VERY STRONG
UPPER LEVEL WINDS...IT IS EXPECTED THAT CONVECTION MAY...AT
ONSET...BEGIN AS ISOLATED CELLS AND THEN DEVELOP INTO LINE
SEGMENTS AHEAD OF THE COLD FRONT. WHILE THE MAIN THREATS
CONTINUE TO BE LARGE HAIL AND DAMAGING WINDS...ISOLATED
TORNADOES CAN NOT BE RULED OUT FOR FAR SOUTHEASTERN PORTIONS OF
THE OUTLOOK AREA. THUNDERSTORMS ARE EXPECTED TO MOVE EAST OF THE
OUTLOOK AREA SHORTLY BY MIDNIGHT.

IN ADDITION TO THE SEVERE WEATHER THREAT...MODERATE TO LOCALLY
HEAVY RAINFALL IS POSSIBLE. THE ATMOSPHERE REMAINS SATURATED
WITH AMPLE MOISTURE OVER THE OUTLOOK AREA. THE KANKAKEE
RIVER...IROQUOIS RIVER AND SUGAR CREEK BASINS WILL BE
PARTICULARLY VULNERABLE TO FLOODING.

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

THUNDERSTORMS WILL BE POSSIBLE AGAIN FRIDAY THROUGH SATURDAY.

GIVEN ONLY A BRIEF PERIOD OF DRY WEATHER EXPECTED WEDNESDAY AND
THURSDAY AND MORE RAIN LIKELY BY FRIDAY AND INTO THE WEEKEND...THE
GROUND WILL REMAIN SATURATED WITH LITTLE ADDITIONAL CAPACITY.
ALSO...AREA RIVERS THAT REACH FLOOD LEVEL EARLY IN THE FORECAST
PERIOD WILL HAVE LITTLE OPPORTUNITY TO RECEDE. AREA RIVERS WILL
NEED TO BE MONITORED FOR POSSIBLE ADDITIONAL FLOODING. THE
POTENTIAL FOR AREAL FLOODING AWAY FROM RIVERS WILL ALSO NEED TO BE
MONITORED CLOSELY AS WELL.

.

<< Severe Weather Possible Today / Tonight >>

It appears at this time most, if not all, the severe weather should be confined to mostly our southern counties, and downstate Illinois.  Northern Illinois (Cook County, Lake, McHenry) are all on the northern "cool" side of this system.  We should just see mostly rain, general thunderstorms, and possibly small hail.  Most of our area is outside the "slight risk" area, but if the front moves further North, we could see some potential severe weather later this evening.    Some of the hazards that can be expected are listed below.  Once the front slides through, tonight we can see a potential mix of rain and (yes) snow.

 

 

WEATHER HAZARDS EXPECTED:

  ISOLATED THUNDERSTORMS...A FEW MAY PRODUCE:
  HAIL TO ONE INCH.
  DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
  LOCALLY HEAVY RAINFALL.
  CLOUD TO GROUND LIGHTNING.
  MODERATE RAINFALL AND BRIEF DOWNPOURS.

  AREAS AFFECTED AND TIMING:

  THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON
  AND CONTINUE THROUGH THIS EVENING MAINLY ALONG AND SOUTH
  OF INTERSTATE 80. THE GREATEST POTENTIAL FOR SEVERE
  THUNDERSTORMS WILL BE ALONG AND SOUTH OF PONTIAC TO
  KANKAKEE TO CROWN POINT.

  DISCUSSION:

  AN AREA OF LOW PRESSURE CONTINUES TO DEVELOP OVER NORTH CENTRAL
  OKLAHOMA EARLY THIS MORNING AND WILL STRENGTHEN AS IT LIFTS
  NORTHEAST INTO CENTRAL MISSOURI BY MIDDAY. THIS LOW PRESSURE
  SYSTEM WILL SLIDE ALONG A NEARLY STATIONARY FRONTAL BOUNDARY
  AND SERVE AS THE FOCAL POINT FOR THUNDERSTORM DEVELOPMENT ALONG
  AND SOUTH OF THIS BOUNDARY THIS AFTERNOON THROUGH THIS EVENING.

  ISOLATED TO SCATTERED THUNDERSTORMS THAT DEVELOP AHEAD OF THE
  LOW WILL BE CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS.
  WARM AIR WILL SLIDE OVERHEAD AND MAY ACT TO LIMIT THUNDERSTORM
  DEVELOPMENT DURING THE AFTERNOON HOURS SOUTH OF THE WARM FRONT.
  WITH THE STRENGTH OF THE UPPER LEVEL WINDS IT IS EXPECTED THAT
  CONVECTION MAY AT ONSET BEGIN AS CELLULAR...THEN DEVELOP INTO
  LINE SEGMENTS IN THE LATE AFTERNOON AND EVENING HOURS AHEAD OF
  THE COLD FRONT. WHILE THE MAIN THREATS CONTINUE TO BE LARGE HAIL
  AND DAMAGING WINDS...ISOLATED TORNADOES CAN NOT BE RULED OUT
  FOR FAR SOUTHERN PORTIONS OF THE OUTLOOK AREA. THUNDERSTORMS
  ARE EXPECTED TO MOVE EAST OF THE OUTLOOK AREA SHORTLY AFTER
  MIDNIGHT INTO NORTH CENTRAL INDIANA.

  IN ADDITION TO THE SEVERE WEATHER THREAT...MODERATE TO LOCALLY
  HEAVY RAINFALL IS POSSIBLE. THE ATMOSPHERE REMAINS SATURATED
  WITH AMPLE MOISTURE EXPECTED OVER THE OUTLOOK AREA MAINLY ALONG
  AND SOUTH OF INTERSTATE 80.

Another Stormy Day on tap for tomorrow. Day 2 outlook by the SPC has our southern area highlighted (slight risk) for Severe Weather. Details in the link.

THUNDERSTORMS ARE LIKELY ACROSS MUCH OF THE OUTLOOK AREA TUESDAY
AND TUESDAY EVENING. THE POTENTIAL EXISTS FOR SOME OF THESE STORMS
TO BE SEVERE TUESDAY AFTERNOON AND EVENING...PARTICULARLY ACROSS
SOUTHERN PORTIONS OF THE OUTLOOK AREA.

AN AREA OF LOW PRESSURE WILL DEVELOP ACROSS THE SOUTH CENTRAL
PLAINS LATE TONIGHT...AND WILL MOVE NORTHEAST ACROSS CENTRAL
ILLINOIS AND NORTHWEST INDIANA THROUGH LATE TUESDAY NIGHT.
THUNDERSTORMS WILL BECOME INCREASINGLY LIKELY AHEAD OF THE LOW AND
NORTH OF THE WARM FRONT FROM MIDDAY TUESDAY ONWARD. THE MAIN
THREAT WITH THESE STORMS IS EXPECTED TO BE LARGE HAIL. HOWEVER...
THE WARM FRONT IS EXPECTED TO LIFT ACROSS EAST CENTRAL ILLINOIS
AND NORTHERN INDIANA DURING THE LATE AFTERNOON HOURS...WITH THE
LOW TRACKING ALONG THE FRONT TUESDAY EVENING. VERY WARM MOIST AND
UNSTABLE AIR...COMBINED WITH INCREASED WIND SHEAR NEAR THE WARM
FRONT WILL PROVIDE AN INCREASED RISK OF SEVERE THUNDERSTORMS
ESPECIALLY ALONG AND SOUTH OF ROUGHLY A STREATOR ILLINOIS TO
VALPARAISO INDIANA LINE DURING THE LATE AFTERNOON AND EVENING
HOURS. SEVERE THUNDERSTORM THREATS WILL INCLUDE LARGE
HAIL...DAMAGING WINDS AND EVEN ISOLATED TORNADOES ACROSS THESE
AREAS. STORMS SHOULD EVENTUALLY MOVE EAST OF THE OUTLOOK AREA
SHORTLY AFTER MIDNIGHT. IN ADDITION TO THE SEVERE WEATHER THREAT...
MODERATE TO LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE LATE TUESDAY
AFTERNOON AND EVENING.

THE STORM PREDICTION CENTER HAS PLACED MUCH OF EAST CENTRAL
ILLINOIS AND PORTIONS OF NORTHERN INDIANA IN A MODERATE RISK
OUTLOOK FOR SEVERE WEATHER TUESDAY AFTERNOON AND EVENING.

MORE THUNDERSTORMS ARE POSSIBLE ON FRIDAY AND FRIDAY NIGHT.

...MORNING SNOWFALL ROUNDUP...

THE FOLLOWING ARE SNOW AMOUNTS FOR THE PREVIOUS 24-HOURS.
OBSERVATIONS ARE USUALLY TAKEN AT 7 AM.

24-HOUR SNOWFALL AMOUNTS FOR MONDAY(04/18/11)...

NORTHERN ILLINOIS                              SNOW
LOCATION (COUNTY):                           FALL(INCHES)

WINTHROP HARBOR 1SSW (LAKE)...................3.0
SPRING GROVE 2N (MCHENRY).....................2.9
GURNEE 2NE (LAKE).............................2.7
ANTIOCH (LAKE)................................2.5
BEACH PARK 1W (LAKE)..........................2.5
GURNEE 2W (LAKE)..............................2.5
WAUKEGAN 2N (LAKE)............................2.4
HEBRON (MCHENRY)..............................2.3
HEBRON 1WNW (MCHENRY).........................2.3
WONDER LAKE 1WNW (MCHENRY)....................2.2
HARVARD (MCHENRY).............................2.0
LAKEMOOR 2SE (LAKE)...........................2.0
ROCKTON 1ESE (WINNEBAGO)......................1.8
MUNDELEIN (LAKE)..............................1.8
WOODSTOCK 5NW (MCHENRY).......................1.8
LAKE BLUFF 1W (LAKE)..........................1.7
PALATINE 1E (COOK)............................1.6
ROSCOE 2ESE (WINNEBAGO).......................1.6
ROSCOE 2SE (WINNEBAGO)........................1.6
BOTANIC GARDENS (COOK)........................1.5
BULL VALLEY 2WNW (MCHENRY)....................1.5
MACHESNEY PARK 3ENE (WINNEBAGO)...............1.5
BUFFALO GROVE 2N (LAKE).......................1.4
INVERNESS 2S (COOK)...........................1.3
LAKE VILLA 1SSW (LAKE)........................1.2
LAKE FOREST 2NNE (LAKE).......................1.0
RIVERWOODS (LAKE).............................1.0
MCHENRY (MCHENRY).............................1.0
WAUCONDA (LAKE)...............................1.0
SCHAUMBURG 3WSW (COOK)........................0.8
ELK GROVE VILLAGE 1ESE (COOK).................0.8
WOODSTOCK (MCHENRY)...........................0.8
ELK GROVE VILLAGE 2WSW (COOK).................0.7
OHARE (COOK)..................................0.6
HOFFMAN ESTATES 5W (COOK).....................0.5
OAK PARK 2S (COOK)............................0.5
ARLINGTON HEIGHTS 1SW (COOK)..................0.5
LINCOLNWOOD 2E (COOK).........................0.5
ROCKFORD 3NE (WINNEBAGO)......................0.5
OAK PARK 1NNE (COOK)..........................0.4
ROCKFORD 1NW (WINNEBAGO)......................0.4
LA GRANGE (COOK)..............................0.3
OAK BROOK (DU PAGE)...........................0.3
ROCKFORD 4NW (WINNEBAGO)......................0.3
STREAMWOOD (COOK).............................0.3
ELGIN (KANE)..................................0.2
MELROSE PARK 2NW (COOK).......................0.2
CAROL STREAM (DU PAGE)........................0.2
ELGIN 1S (KANE)...............................0.2
ELGIN 1WSW (KANE).............................0.2
BARRINGTON (LAKE).............................0.1
COUNTRYSIDE 1ENE (COOK).......................0.1
CAROL STREAM 1WNW (DU PAGE)...................0.1
HANOVER PARK 2SSW (DU PAGE)...................0.1
HAWTHORN WOODS 1N (LAKE)......................0.1
HUNTLEY 4W (MCHENRY)..........................0.1
DE KALB (DE KALB)...........................TRACE
BRIDGEVIEW 1NNW (COOK)......................TRACE
CHICAGO 6ESE (COOK).........................TRACE
CHICAGO RIDGE (COOK)........................TRACE
WORTH (COOK)................................TRACE
OAK PARK 1SW (COOK).........................TRACE
CHICAGO 7NNE (COOK).........................TRACE
DE KALB (DE KALB)...........................TRACE
WESTMONT 1SSE (DU PAGE).....................TRACE
GLEN ELLYN 2SSE (DU PAGE)...................TRACE
BURR RIDGE 2SW (DU PAGE)....................TRACE
GENEVA 2ENE (KANE)..........................TRACE
ST. CHARLES 6NW (KANE)......................TRACE
BYRON 3N (OGLE).............................TRACE
MIDWAY 3SW (COOK)...........................TRACE
ST CHARLES 7NW (KANE).......................TRACE
WINFIELD (DU PAGE)..........................TRACE

NORTHWEST INDIANA                              SNOW
LOCATION (COUNTY):                           FALL(INCHES)

INDIANA DUNES (PORTER)......................TRACE
PORTAGE 1ESE (PORTER).......................TRACE
VALPARAISO 1ENE (PORTER)....................TRACE
PORTER 1S (PORTER)..........................TRACE
CHESTERTON 4E (PORTER)......................TRACE

NOW...
PERIODS OF MODERATE...TO AT TIMES HEAVY...WET SNOW WILL CONTINUE
THROUGH AROUND 8 AM THIS MORNING. VISIBILITIES IN THE HEAVIER BANDS
OF SNOW WILL BE REDUCED UNDER A HALF A MILE. THE ACCUMULATING SNOW
WILL PRIMARILY BE NORTH OF CHICAGO ACROSS LAKE AND MCHENRY COUNTIES
IN ILLINOIS. PERSONS IN THESE COUNTIES CAN EXPECT 1 TO POSSIBLY AS
MUCH AS 3 INCHES OF ACCUMULATION...MAINLY ON GRASSY SURFACES. IF
TRAVEL IS PLANNED EARLY THIS MORNING USE EXTRA CAUTION AS VISIBILITIES
WILL BE POOR.

Outlook:

A BAND OF SNOW IS EXPECTED TO DEVELOP LATE THIS EVENING ACROSS
NORTHERN ILLINOIS...MAINLY NORTH OF INTERSTATE 88. THE
PRECIPITATION WILL LIKELY BEGIN AS RAIN. HOWEVER...COLDER AIR
WILL CHANGE THE RAIN TO SNOW LATER THIS EVENING. THERE IS ALSO A
POTENTIAL FOR 1 TO 3 INCHES OF SLUSHY ACCUMULATION...ESPECIALLY ON
GRASSY SURFACES. HEAVIEST ACCUMULATIONS ARE EXPECTED NEAR THE
WISCONSIN STATE LINE. AT THIS TIME PRECIPITATION IS EXPECTED TO
BEGIN LATE THIS EVENING...WITH MOST ACCUMULATION TAKING PLACE
BETWEEN MIDNIGHT AND ABOUT 5 AM.

IN THE CITY OF CHICAGO...AND SOUTH OF INTERSTATE 88...
TEMPERATURES SHOULD STAY JUST ENOUGH ABOVE FREEZING TO EITHER
CAUSE MOST PRECIPITATION TO REACH THE GROUND AS RAIN...OR FOR ANY
FALLING SNOW TO MELT ON CONTACT WITH THE SURFACE.

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

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

SOME THUNDERSTORMS ON TUESDAY...INTO TUESDAY NIGHT MAY BECOME
SEVERE. MODERATE TO HEAVY RAINFALL IS ALSO POSSIBLE DURING THIS
PERIOD.

We go from summer to spring to winter (tonight) and back to spring. 1-3 inches of snow tonight. Nothing should really stick, the ground is too warm.
We will warm up tomorrow, and Tuesday, portions of our area is primed for possible severe weather. Day 3 issuance by the storms prediction center has our area highlighted for possible severe weather. Stay Tuned!

...POTENTIAL FOR SNOW TONIGHT ACROSS NORTHERN ILLINOIS...

THERE IS THE POTENTIAL FOR A BAND OF MODERATE TO HEAVY SNOW TO
DEVELOP TONIGHT ACROSS NORTHERN ILLINOIS...MAINLY NORTH OF
INTERSTATE 80. THE ONSET OF PRECIPITATION WILL BEGIN AS
RAIN...THEN MAY MIX WITH SNOW BEFORE CHANGING TO ALL SNOW AFTER
MIDNIGHT. IF THIS SNOW DEVELOPS TONIGHT...THERE IS THE POTENTIAL
FOR AN INCH OR TWO OF ACCUMULATIONS...ESPECIALLY ON GRASSY
SURFACES. SOME UNCERTAINTY CONTINUES WITH HOW MUCH PRECIPITATION
WILL FALL...AND WHETHER SNOW WOULD ACCUMULATE AS TEMPERATURES WILL
HOVER IN THE LOWER 30S. DUE TO THE POSSIBILITY OF HEAVY
SNOW...SLUSHY ACCUMULATION IS POSSIBLE.

Not that it concerns our area, but interesting...... Another Severe Weather Day, this time on the
Eastern Seaboard.... http://www.spc.noaa.gov

...TORNADO OUTBREAK EXPECTED OVER PARTS OF CNTRL/ERN NC AND FAR ERN
    SC THIS AFTERNOON INTO THIS EVENING...
   
   THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
   DEVELOPMENT OF NUMEROUS SEVERE STORMS WITH SEVERAL STRONG TORNADOES
   AND A POTENTIAL FOR LONG TRACK TORNADOES ACROSS PARTS OF ERN NC AND
    FAR ERN SC THIS AFTERNOON INTO THE EVENING.
   
   THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
   
          CENTRAL AND EASTERN NORTH CAROLINA
          FAR ERN SOUTH CAROLINA

--
Gregg Dubin
wxfan1978@gmail.com

.NOW...

A BAND OF PRECIPITATION...IN THE FORM OF RAIN AND SNOW OR IN SOME
CASES ALL WET SNOW...MOVING EAST AT AROUND 30 MPH...WILL AFFECT
NORTHEASTERN ILLINOIS AND PORTIONS OF NORTHWESTERN INDIANA THROUGH
400 PM. SNOW IS NOT EXPECTED TO STICK TO ROADWAY SURFACES DUE TO
WARM GROUND TEMPERATURES.

Snow/Mix here in Algonquin

Massive Tornado Outbreak yesterday across the southeast
@reedtimmerTVN: up to 98 preliminary tornado reports as of this morning."

NOW...
AT 1020 PM CDT...RADAR INDICATED AN AREA OF SHOWERS AND ISOLATED
THUNDERSTORMS ACROSS PORTIONS OF FAR NORTHERN AND NORTHEAST
ILLINOIS. ANOTHER AREA OF SHOWERS AND THUNDERSTORMS WAS MOVING
INTO THE INTERSTATE 80 CORRIDOR FROM CENTRAL ILLINOIS. THESE
SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE TO MOVE NORTH
ACROSS NORTHERN ILLINOIS THROUGH MIDNIGHT. BRIEF DOWNPOURS AND
OCCASIONAL CLOUD TO GROUND LIGHTNING CAN BE EXPECTED. SOME PEA
SIZED HAIL MAY OCCUR WITH SOME OF THE STRONGER STORMS MOVING
THROUGH THE FOX VALLEY OVER THE NEXT HOUR OR SO.

...WIND ADVISORY IS CANCELLED...

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

WINDS CONTINUE TO DIMINISH THIS EVENING AND ALL READINGS ACROSS
THE AREA ARE BELOW ADVISORY CRITERIA. WINDY CONDITIONS ARE
EXPECTED TO LAST THROUGH THE EVENING HOURS...WITH PEAK GUSTS
RANGING BETWEEN 30 AND 40 MILES PER HOUR.

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

A WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING.

* TIMING...ONGOING WINDS 20 TO 30 MPH THIS AFTERNOON WILL CONTINUE
THROUGH THE EARLY EVENING BEFORE ABATING BY LATE EVENING.

* WINDS...EASTERLY WINDS 20 TO 30 MPH WITH GUSTS OCCASIONALLY
EXCEEDING 45 MPH.

* IMPACTS...HIGH WINDS WILL MAKE TRAVELING ON NORTH TO SOUTH
ORIENTED ROADS DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

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

A WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING.

* TIMING...WINDS WILL INCREASE TO 20 TO 30 MPH THIS MORNING AND
WILL CONTINUE THIS AFTERNOON BEFORE ABATING BY THIS EVENING.

* WINDS...EASTERLY WINDS WILL INCREASE TO 20 TO 30 MPH WITH
GUSTS OCCASIONALLY EXCEEDING 45 MPH.

* IMPACTS...HIGH WINDS WILL MAKE TRAVELING ON NORTH TO SOUTH
ORIENTED ROADS DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

There were 10 reports of tornadoes across the central and southern Plains yesterday. Today the threat of severe weather moves east, as the NWS Storm Prediction Center in Norman, Okla., is forecasting the development of tornadoes, large hail and damaging winds over parts of the South today through tonight. The areas most likely to experience severe weather—indicated by a moderate risk in SPC's Convective Outlook product for today—include much of Alabama and Mississippi. Details...

http://www.spc.ncep.noaa.gov

TornadoVideos.Net | INSANE video from Oklahoma.. . Another Tornado Outbreak Today

At least 10 tornadoes were reported yesterday across Kansas and Oklahoma,
including one particularly strong wedge tornado from a supercell that moved
through Atoka County in extreme southern Oklahoma just north of the Red
River. Sadly, at least two fatalities resulted from this violent tornado
from the communities of Atoka ..."

http://www.tornadovideos.net/component/content/article/1346

...WIND ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 9 PM CDT THIS EVENING.

* TIMING...WINDS WILL INCREASE TO 20 TO 30 MPH THIS MORNING AND
WILL CONTINUE THIS AFTERNOON BEFORE ABATING BY THIS EVENING.

* WINDS...EASTERLY WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS
OCCASIONALLY EXCEEDING 45 MPH.

* IMPACTS...HIGH WINDS WILL MAKE TRAVELING ON NORTH TO SOUTH
ORIENTED ROADS DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

Weather for the next few days look to be wet and somewhat raw. Not a good day for outdoor activities. See link for complete outlook.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE IS A POSSIBILITY FOR THUNDERSTORMS FRIDAY AFTERNOON...
MAINLY SOUTH OF INTERSTATE 80.

STRONG EASTERLY WINDS WILL DEVELOP ON FRIDAY WITH WIND GUSTS UP
TO 45 MPH POSSIBLE.

STRONG EAST NORTHEAST WINDS WILL BRING HIGH WAVES AND POSSIBLE
LAKE SHORE FLOODING TO THE ILLINOIS SHORE OF LAKE MICHIGAN FRIDAY
THROUGH FRIDAY NIGHT.

Big Storms brewing in OK, and Kansas. Stormchasers are out and about. Storm Predicition Center looks to issue high risk for severe weather out there.

So what happened Sunday?  Why didn't this big storm show up?  What gives?
Gino Izzi from the Chicago National Weather Service does a great job with this multimedia presentation

http://www.crh.noaa.gov/lot/?n=anybriefing

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
WESTERN LEE COUNTY IN NORTH CENTRAL ILLINOIS...
OGLE COUNTY IN NORTH CENTRAL ILLINOIS...
SOUTHEASTERN WINNEBAGO COUNTY IN NORTH CENTRAL ILLINOIS...

* UNTIL 1015 PM CDT

* AT 929 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTHEAST OF STERLING
TO 10 MILES SOUTHWEST OF TAMPICO...AND MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
MOUNT MORRIS...DIXON...OREGON...WALTON...POLO...STILLMAN VALLEY...
FRANKLIN GROVE...AMBOY...ASHTON...NELSON...HARMON...DAVIS JUNCTION
AND NEW MILLFORD.

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 TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT MONDAY MORNING FOR
NORTHEASTERN ILLINOIS.

Tornado watch #122 has been issued for most of northern Illinois including the western portions of the Chicago Metro area. It does NOT include the eastern most counties of Lake, Illinois, Cook, Will, Kankakee and areas in northwest Indiana. The watch will be in effect until1am CDT Monday morning.

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 122 IN
EFFECT UNTIL 1 AM CDT MONDAY FOR THE FOLLOWING AREAS

IN ILLINOIS THIS WATCH INCLUDES 11 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN NORTH CENTRAL ILLINOIS

BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO

IN NORTHEAST ILLINOIS

GRUNDY KANE KENDALL
MCHENRY

THIS INCLUDES THE CITIES OF...AURORA...BELVIDERE...DEKALB...
DIXON...MORRIS...OREGON...OSWEGO...OTTAWA...PONTIAC...
ROCKFORD AND WOODSTOCK.



KJB

A new line of showers and thunderstorms are now developing over northeastern iowa.  These storms are expected to head east.  There is a possibility of a tornado watch being issued for our asrea within the next few hours.  Stay tuned!

Latest Web-Briefing regarding the expected weather event tonight.......

http://www.crh.noaa.gov/lot/?n=webbriefing

The latest run from the storm prediction center (SPC) has placed the moderate risk completly out of IL and mostly into Wisconsin.  We are not out of the woods yet, all of Northern IL is still in the "slight" risk category for severe weather.  Stay tuned!


SPC Day 1 Outlook

Tornado Watch likely to be issued soon for much of Wisconsin, extreme NW IL and Northeast Iowa.

Temps currently in mid 70's on its way up to upper 80's or low 90's

Overnight the forecast models changed dramatically. The storm prediction center has downgraded out area from "moderate" to "slight" chance of severe weather. While it still appears we may have a severe threat later tonight, and a tornado threat still will exist, the chances have drastically been reduced.

Temps will be in the mid to upper 80s (near 90) with breezy southwest winds which can create red flag conditions (Fire). Mostly sunny for the most part of the day.

Stay tuned throughout the day, if any watches and or warnings are posted, i will make sure to post them.

See outlook below (or click on the link).

WEATHER HAZARDS EXPECTED:

SOUTHERLY WINDS GUSTING TO AROUND 40 MPH.

HEIGHTENED FIRE DANGER.

AND THUNDERSTORMS...THE STRONGEST MAY PRODUCE:
DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL TO THE SIZE OF HALF DOLLARS.
HEAVY DOWNPOURS.
CLOUD TO GROUND LIGHTNING.
AND POSSIBLY A TORNADO.

AREAS AFFECTED AND TIMING:

STRONG SOUTHERLY WINDS ARE LIKELY THIS AFTERNOON AND EVENING
ACROSS THE ENTIRE OUTLOOK AREA.

A HEIGHTENED GRASS FIRE DANGER IS EXPECTED THIS AFTERNOON.

ALSO...ISOLATED THUNDERSTORMS COULD MOVE INTO WESTERN PORTIONS
OF THE OUTLOOK AREA...GENERALLY WEST OF A ROCKFORD TO PERU LINE
THIS EVENING. THUNDERSTORMS ARE THEN EXPECTED TO BECOME MORE
WIDESPREAD AS THEY MOVE EAST ACROSS THE OUTLOOK AREA THIS
EVENING...ESPECIALLY SOUTH OF INTERSTATE 80.

DISCUSSION:

A COLD FRONT WILL MOVE EAST INTO AN UNSEASONABLY WARM AIRMASS
OVER THE REGION. INITIALLY...VERY WARM TEMPERATURES ALOFT ARE
EXPECTED TO PREVENT THUNDERSTORM DEVELOPMENT...HOWEVER COOLING
ALOFT THIS EVENING SHOULD ALLOW THUNDERSTORMS TO GRADUALLY
BECOME MORE WIDESPREAD. MODERATE INSTABILITY AND STRONG WINDS
ABOVE THE SURFACE WILL CREATE A FAVORABLE ENVIRONMENT FOR SEVERE
THUNDERSTORMS. THE PRIMARY THREATS WILL BE LARGE HAIL AND
DAMAGING WINDS...BUT CONDITIONS WILL ALSO BECOME SOMEWHAT
FAVORABLE FOR TORNADOES THIS EVENING...HOWEVER IT NOW APPEARS
MOST OF THE STORMS WILL FORM IN A LINE AS OPPOSED TO INDIVIDUAL
SUPERCELLS. SHOULD THIS BE THE CASE...IT WOULD LIMIT THE
POTENTIAL FOR A MORE WIDESPREAD OR SIGNIFICANT TORNADO THREAT.

SOUTHERLY WINDS WILL GUST TO AROUND 40 MPH THIS AFTERNOON AND
EVENING. THE STRONG WINDS COMBINED WITH RELATIVE HUMIDITY VALUES
FALLING BELOW 40 WILL LIKELY LEAD TO A HEIGHTENED GRASS FIRE
DANGER.

NOW...
AT 830 PM SATELLITE IMAGERY CONTINUED TO SHOW AN AREA OF LOW
CLOUDS AND FOG ALONG THE NEAR SHORES ACROSS LAKE AND FAR NORTHERN
COOK COUNTIES IN ILLINOIS. PERSONS FROM WAUKEGAN TO HIHGLAND
PARK...SOUTHWARD TO NEAR EVANSTON CAN EXPECT PERIODS OF FOG
THROUGH THE EVENING HOURS. VISIBILITIES MAY OCCASIONALLY DROP
UNDER A HALF MILE FOR AREAS DIRECTLY ADJACENT TO THE LAKE. THE FOG
SHOULD DISSIPATE LATER THIS EVENING AS THE ONSHORE WINDS SWITCH OUT OF
THE SOUTH BEHIND AN APPROACHING WARM FRONT.

TORNADO HITS MAPLETON, IA!

"Reports are still coming in, but an apparently large, destructive tornado
has hit the town of Mapleton, Iowa this evening. Several storm chasers were
streaming this live as it occurred, and debris could be seen flying through
the air. Major structural damage has occurred

NOW...
AT 700 PM SATELLITE IMAGERY CONTINUED TO SHOW AN AREA OF LOW
CLOUDS AND FOG ALONG THE NEAR SHORES ACROSS LAKE AND FAR NORTHERN
COOK COUNTIES IN ILLINOIS. PERSONS FROM WAUKEGAN TO HIHGLAND
PARK...SOUTHWARD TO NEAR EVANSTON CAN EXPECT PERIODS OF FOG
THROUGH THE EVENING HOURS. VISIBILITIES MAY OCCASIONALLY DROP
UNDER A MILE FOR AREAS DIRECTLY ADJACENT TO THE LAKE. THE FOG WILL
DISSIPATE LATER THIS EVENING AS THE ONSHORE WINDS SWITCH OUT OF
THE SOUTH BEHIND AN APPROACHING WARM FRONT.

NOW...
AT 520 PM VISIBLE SATELLITE IMAGERY WAS SHOWING AN AREA OF LOW
CLOUDS AND FOG APPROACHING THE LAKE SHORES FROM WAUKEGAN TO
HIHGLAND PARK SOUTHWARD TO EVANSTON. VISIBILITIES MAY OCCASIONALLY
DROP UNDER A MILE FOR AREAS DIRECTLY ADJACENT TO THE LAKE. THE FOG
WILL DISSIPATE THIS EVENING AS THE ONSHORE WINDS SWITCH OUT OF THE
SOUTH.

Outlook

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

CHANCE OF THUNDERSTORMS...SOME WHICH MAY PRODUCE:
LOCALLY HEAVY RAINFALL.
CLOUD TO GROUND LIGHTNING.
HAIL TO THE SIZE OF QUARTERS.
WIND GUSTS OVER 60 MPH.

AREAS AFFECTED AND TIMING:

THERE IS A CHANCE OF THUNDERSTORMS TONIGHT...ESPECIALLY AFTER
MIDNIGHT. THE GREATEST THREAT OF THUNDERSTORMS APPEARS TO BE
NORTH OF INTERSTATE 88.

DISCUSSION:

THUNDERSTORMS WILL LIKELY DEVELOP LATE THIS AFTERNOON OR EARLY
THIS EVENING OVER IOWA. THESE STORMS ARE EXPECTED TO TRACK
EASTWARD...GENERALLY ALONG AND NORTH OF AN ADVANCING WARM FRONT
WHICH IS EXPECTED TO REACH THE WISCONSIN BORDER BY EARLY SUNDAY
MORNING. IT CURRENTLY APPEARS AS THOUGH THE GREATEST CHANCE OF
THUNDERSTORMS IS OVER SOUTHERN WISCONSIN...HOWEVER SOME STORMS
COULD CLIP FAR NORTHERN ILLINOIS. IF ANY STORMS OF THE STORMS
TONIGHT DO MAKE IT INTO NORTHERN ILLINOIS THEY WILL HAVE THE
POTENTIAL TO PRODUCE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

A SIGNIFICANT AND POTENTIALLY DANGEROUS OUTBREAK OF SEVERE
THUNDERSTORMS APPEARS LIKELY LATE SUNDAY AFTERNOON OR MORE
LIKELY SUNDAY EVENING. TORNADOES...DAMAGING WINDS...AND LARGE
HAIL ALL APPEAR QUITE POSSIBLE.

AN INTENSE SPRING STORM SYSTEM WILL TRACK FROM THE CENTRAL
PLAINS TODAY NORTHEAST INTO THE UPPER GREAT LAKES SUNDAY.
STRONG SOUTHERLY WINDS WILL USHER UNSEASONABLY WARM AND MOIST
AIR NORTHWARD INTO THE REGION SUNDAY...RESULTING IN THE
ATMOSPHERE BECOMING VERY UNSTABLE DURING THE AFTERNOON AND
EVENING. THE COMBINATION OF INSTABILITY AND VERY STRONG WINDS
ALOFT WILL CREATE AN ENVIRONMENT FAVORABLE FOR SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING STRONG AND POTENTIALLY LONG
TRACKED TORNADOES...AS WELL AS WIDESPREAD SIGNIFICANT DAMAGING
WINDS. IT IS DIFFICULT TO FORECAST IN ADVANCE WHETHER STORMS
WILL REMAIN MORE ISOLATED OR CONGEAL INTO A LINE...WHICH HAS
MAJOR IMPLICATIONS OF WHETHER THE GREATER SEVERE THREAT WILL BE
DAMAGING WINDS OR TORNADOES.

THERE IS A CHANCE OF THUNDERSTORMS THURSDAY INTO THURSDAY
NIGHT.

.

Live weather briefing at 1pm regarding tomorrows severe weather event. If you don't have a NOAA weather radio, see link below to listen.

http://www.wunderground.com/wxradio/smallplayer.html?stationid=jimmyb2|254|1603

...LIVE SEVERE WEATHER NOAA WEATHER RADIO BRIEFING AROUND 100 PM CDT...

THE NATIONAL WEATHER SERVICE CHICAGO WILL BE CONDUCTING A LIVE
SEVERE WEATHER BRIEFING ON ALL NOAA WEATHER RADIO STATIONS WITH
BROADCASTS ORIGINATING FROM THE NATIONAL WEATHER SERVICE CHICAGO.
THE BRIEFING WILL BEGIN A COUPLE MINUTES AFTER 100 PM CDT AND
WILL COVER THE THREAT OF SEVERE THUNDERSTORMS THIS WEEKEND.

Everyone in Northern Illinois Tomorrow a potentially very serious and significant weather event will be passing through the area sometime mid to late evening tomorrow (Sunday).

The storm prediction center has placed most of our area in a "moderate" risk area for severe weather (which is greater than 45%). At some point we may be in the high risk area. Significant Long track tornadoes, 1 inch hail or greater, and damaging winds can be expected.

Details, and another live briefing from the weather service will be out later today regarding tomorrows event.

 

If you don't have a NOAA weather radio the link is  http://www.wunderground.com/wxradio/smallplayer.html?stationid=jimmyb2|254|1603

..LIVE SEVERE WEATHER NOAA WEATHER RADIO BRIEFING AROUND 200 PM CDT...

THE NATIONAL WEATHER SERVICE CHICAGO WILL BE CONDUCTING A LIVE
SEVERE WEATHER BRIEFING ON ALL NOAA WEATHER RADIO STATIONS WITH
BROADCASTS ORIGINATING FROM THE NATIONAL WEATHER SERVICE CHICAGO.
THE BRIEFING WILL BEGIN A MINUTE OR TWO AFTER 200 PM CDT AND WILL
COVER THE THREAT OF SEVERE THUNDERSTORMS THIS WEEKEND.
--
Gregg Dubin
wxfan1978@gmail.com

..LIVE SEVERE WEATHER NOAA WEATHER RADIO BRIEFING AROUND 200 PM CDT...

THE NATIONAL WEATHER SERVICE CHICAGO WILL BE CONDUCTING A LIVE
SEVERE WEATHER BRIEFING ON ALL NOAA WEATHER RADIO STATIONS WITH
BROADCASTS ORIGINATING FROM THE NATIONAL WEATHER SERVICE CHICAGO.
THE BRIEFING WILL BEGIN A MINUTE OR TWO AFTER 200 PM CDT AND WILL
COVER THE THREAT OF SEVERE THUNDERSTORMS THIS WEEKEND.

NOW...
SCATTERED SHOWERS CAN BE EXPECTED INTO LATE MORNING. RAINFALL AMOUNTS
SHOULD GENERALLY BE LESS THAN A TENTH OF AN INCH. IN ADDITION....
AREAS OF FOG WILL REDUCE VISIBILITIES TO AS LOW AS ONE MILE AT
TIMES THROUGH 10 AM.

Day 3 outlook issued by storm prediction center has parts of our area in the moderate risk for severe weather. This would be for late Sunday afternoon into the evening. Stay Tuned!

NOW...
AT 745 PM...LOCAL OBSERVATIONS CONTINUE TO INDICATE PATCHY
FOG...MAINLY CONFINED TO AREAS ADJACENT TO LAKE MICHIGAN FROM
DOWNTOWN CHICAGO...NORTHWARD INTO WISCONSIN. PERSONS IN THIS AREA
CAN EXPECT VISIBILITIES TO OCCASIONALLY LOWER TO UNDER A MILE.
VISIBILITIES SHOULD IMPROVE LATER THIS EVENING AS RAIN MOVES IN
FROM THE SOUTH.

NOW...
AT 520 PM...REPORTS AND LOCAL OBSERVATIONS CONTINUE TO INDICATE
AREAS OF FOG...ESPECIALLY NEAR THE LAKE. PERSONS IN AND AROUND THE
LAKE SHORE...INCLUDING CHICAGO...WAUKEGAN AND GARY INDIANA CAN
EXPECT AREAS OF FOG TO CONTINUE THROUGH THE EVENING HOURS...WITH
VISIBILITIES LIKELY REDUCED UNDER A MILE AT TIMES. VISIBILITIES
SHOULD IMPROVE SOME LATER THIS EVENING AS RAIN DEVELOPS ACROSS THE
AREA.

Another opening day in 40s---2nd in a wk! At least the rains hold off for til tonight when mixed thunder's possible. 0.5-1" totals.

Northbound warm front Sat sweeps 70s into south/west suburbs, 60s lakeside. Sunday's to be summer-windy wi 80s likely-record high is 90!

Honestly wouldn't be too surprised to see 88 Sun. That would be 32º abv normal! But there are real concerns about a svr wx outbreak Sunday night.

NOW...

THE DENSE FOG ADVISORY HAS BEEN CANCELLED FOR THE REGION...THOUGH
LOCALLY PATCHES OF DENSE FOG WITH VISIBILITIES TO LESS THAN ONE
HALF MILE ARE STILL POSSIBLE ALONG THE IMMEDIATE LAKE SHORE IN
ILLINOIS AND NORTHWESTERN INDIANA. CONDITIONS WILL CONTINUE TO
IMPROVE AND ALL AREAS SHOULD SEE THE FOG LIFT TO A LOW CLOUD DECK
EARLY THIS AFTERNOON.

THE DENSE FOG ADVISORY IS NOW IN EFFECT UNTIL NOON CDT TODAY.

* TIMING...AREAS OF DENSE FOG WILL CONTINUE THROUGH THE EARLY
AFTERNOON HOURS.

* VISIBILITY...AREAS OF DENSE FOG WILL RESULT IN VISIBILITIES
FALLING TO ONE QUARTER MILE OR LESS. AREAS AWAY FROM THE LAKE
FRONT SHOULD BEGIN TO SEE IMPROVEMENT LATE THIS MORNING...BUT IT
IS STILL POSSIBLE FOR VISIBILITY TO DRAMATICALLY DECREASE OVER
SHORT DISTANCES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A DENSE FOG
ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM CDT THIS MORNING.

* TIMING...AREAS OF DENSE FOG WILL CONTINUE THROUGH THE EARLY
MORNING HOURS.

* VISIBILITY...AREAS OF DENSE FOG WILL RESULT IN VISIBILITIES
FALLING TO ONE QUARTER MILE OR LESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Hands still on deck for an unseasonably warm weekend. Low to mid 80s still possible for Sunday, however at a cost of a potential massive spring storm. Stay Tuned. See link for outlook.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

CHANCE OF THUNDERSTORMS...THE STRONGEST MAY PRODUCE:
LOCALLY HEAVY RAINFALL.
CLOUD TO GROUND LIGHTNING.
AND PEA SIZE HAIL.

AREAS AFFECTED AND TIMING:

THUNDERSTORMS ARE POSSIBLE TONIGHT...ESPECIALLY AFTER MIDNIGHT.

DISCUSSION:

AN UPPER LEVEL DISTURBANCE COMBINED WITH A STRONG LOW LEVEL JET
STREAM WILL LIKELY RESULT IN WIDESPREAD SHOWERS WITH SOME
EMBEDDED THUNDERSTORMS TONIGHT. THE POTENTIAL EXISTS FOR SOME
LOCALLY HEAVY RAINFALL TOTALS...THOUGH THE THREAT OF FLOODING
AND SEVERE WEATHER BOTH APPEAR TO BE LOW TONIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY NIGHT THROUGH
SATURDAY NIGHT AS A WARM FRONT SLOWLY LIFTS NORTH ACROSS THE
REGION. IF THUNDERSTORMS DO INDEED FORM...THEN IT IS POSSIBLE
THAT THE MOST INTENSE STORMS COULD PRODUCE LARGE HAIL AND
LOCALLY HEAVY RAIN...THOUGH THE POTENTIAL LOOKS LOW THROUGH THE
FIRST HALF OF THE DAY SUNDAY.

THUNDERSTORMS ARE EXPECTED BY LATE SUNDAY AFTERNOON OR MORE
LIKELY SUNDAY NIGHT AS AN INTENSE SPRING STORM SYSTEM MOVES INTO
THE REGION. IT IS TOO EARLY TO PIN POINT THE EXTENT AND
MAGNITUDE OF THE SEVERE WEATHER THREAT LOCALLY.
HOWEVER...CONCERN IS GROWING THAT A WIDESPREAD AND POTENTIALLY
SIGNIFICANT SEVERE WEATHER OUTBREAK...INCLUDING THE POTENTIAL
FOR TORNADOES...IS POSSIBLE SOMEWHERE IN THE MIDWEST OR GREAT
LAKES REGION SUNDAY AFTERNOON AND EVENING.

MANY INGREDIENTS NEED TO FALL INTO PLACE JUST RIGHT FOR A
SIGNIFICANT SEVERE WEATHER OUTBREAK...AND IF EVEN ONE FAILS TO
MATERIALIZE THE THREAT WILL DECREASE SIGNIFICANTLY. LATER
FORECASTS REGARDING THE SEVERE WEATHER THREAT SHOULD BE CLOSELY
MONITORED.

In the short term, thunderstorms are expected Thurs into Fri, at this time its a marginal severe threat at this point.
Meteorlogically speaking it looks to be a potentially active weekend. Temps may surge up to 80 on Sunday, and crash Monday. Potential significant severe weather in or near our area Sunday. Outlook below

DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS ARE LIKELY THURSDAY NIGHT INTO EARLY FRIDAY. LOCALLY
HEAVY RAINFALL IS POSSIBLE AND THE MOST INTENSE STORMS COULD
PRODUCE SOME HAIL.

THERE WILL LIKELY BE A PERIOD OR TWO OF THUNDERSTORMS OVER THE
WEEKEND...ESPECIALLY SUNDAY INTO SUNDAY NIGHT. EARLY INDICATIONS
ARE THAT THERE WILL BE AT LEAST SOME POTENTIAL FOR SEVERE
THUNDERSTORMS.

.

More storms look to be on the horizon with the potential of severe weather.

DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS ARE LIKELY THURSDAY NIGHT INTO FRIDAY MORNING...
WITH SOME POTENTIAL FOR THE MOST INTENSE STORMS TO PRODUCE HAIL.

A COUPLE PERIODS OF THUNDERSTORMS ARE THEN EXPECTED OVER THE
UPCOMING WEEKEND. SEVERE THUNDERSTORMS DO APPEAR TO BE A
THREAT...PARTICULARLY LATE IN THE WEEKEND.

SEVERE THUNDERSTORM WATCH 86 IS IN EFFECT UNTIL 300 AM CDT
FOR THE FOLLOWING LOCATIONS

ILC007-031-037-043-063-089-091-093-097-099-103-111-141-197-201-
040800-
/O.NEW.KWNS.SV.A.0086.110404T0155Z-110404T0800Z/
 
IL
.    ILLINOIS COUNTIES INCLUDED ARE

BOONE                COOK                DEKALB
DUPAGE               GRUNDY              KANE
KANKAKEE             KENDALL             LAKE
LA SALLE             LEE                 MCHENRY
 OGLE                 WILL                WINNEBAGO

--
Gregg Dubin
wxfan1978@gmail.com

AT 755 PM CDT...STRONG TO SEVERE THUNDERSTORMS WERE OCCURRING OVER
PORTIONS OF EASTERN IOWA. THESE STORMS STRETCHED FROM 20 MILES
EAST OF OTTUMWA...TO NEAR DUBUQUE. THESE STORMS WERE MOVING TO THE
NORTHEAST AT 40 MPH...AND WILL MOVE INTO NORTHWEST ILLINOIS AFTER
8 PM. IF THESE STORMS MAINTAIN THEIR CURRENT MOVEMENT THEY SHOULD
REACH THE DIXON...BYRON...ROCKFORD AND POPLAR GROVE AREAS BETWEEN
915 PM AND 1030 PM CDT. THESE STORMS HAVE A HISTORY OF PRODUCING
LARGE HAIL AND WINDS IN EXCESS OF 60 MPH...AND MAY REMAIN CAPABLE
OF PRODUCING SEVERE WEATHER AS THEY MOVE INTO NORTH CENTRAL
ILLINOIS LATER THIS EVENING. IN ADDITION...A WARM FRONTAL BOUNDARY
ACROSS FAR NORTHERN ILLINOIS WILL PROVIDE BACKED LOW LEVEL WINDS
WHICH MAY ENHANCE THE THREAT OF TORNADOES. A TORNADO WATCH IS IN
EFFECT FOR A PORTION OF NORTHWEST AND NORTH CENTRAL ILLINOIS UNTIL
MIDNIGHT CDT.

As promised, Tornado Watch issued for Northwestern Illinois until Midnight which includes the city of Rockford.

Severe Thunderstorm and or Tornado watch likely will be issued shortly for Northwest and North Central IL. A watch may be issued for our area sometime later tonight.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME MAY BE SEVERE WITH THE POTENTIAL TO
PRODUCE: CLOUD TO GROUND LIGHTNING. LARGE HAIL OF 1 TO 2 INCHES.
STRONG DAMAGING WIND GUSTS IN EXCESS OF 60 MPH. LOCALLY HEAVY
RAINFALL. ISOLATED TORNADOES.

AREAS AFFECTED AND TIMING:

THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG A COLD FRONT ACROSS
SOUTHEAST IOWA VERY LATE THIS AFTERNOON OR EARLY THIS EVENING...
AND THEN SPREAD EAST INTO ILLINOIS DURING THE EVENING HOURS AND
INTO NORTHWEST INDIANA DURING THE LATE EVENING AND EARLY
OVERNIGHT HOURS. THUNDERSTORMS WOULD LIKELY AFFECT NORTH CENTRAL
ILLINOIS AFTER 7 OR 8 PM...REACHING NORTHEAST ILLINOIS AFTER 9
OR 10 PM AND NORTHWEST INDIANA TOWARD MIDNIGHT.

DISCUSSION:

DEEP LOW PRESSURE OVER NORTHERN IOWA WILL TRACK NEAR THE
ILLINOIS WISCONSIN BORDER TO SOUTHERN LAKE MICHIGAN THIS
EVENING...AND TO CENTRAL LOWER MICHIGAN BY MONDAY MORNING. VERY
WARM AND MOIST AIR WILL CONTINUE TO SPREAD NORTH ACROSS THE
OUTLOOK AREA AHEAD OF THE LOW THIS EVENING. THUNDERSTORMS ARE
EXPECTED TO DEVELOP ACROSS SOUTHEAST IOWA AND NORTHERN MISSOURI
ALONG A COLD FRONT TRAILING FROM THE LOW TOWARD EVENING...AND
WILL MOVE INTO NORTHERN ILLINOIS DURING THE EVENING HOURS AND
INTO INDIANA OVERNIGHT. THE COMBINATION OF WARM AND MOIST LOW
LEVEL AIR...AND STRONG WINDS BOTH AT THE SURFACE AND ALOFT WILL
SUPPORT THE DEVELOPMENT OF SEVERE STORMS...THOUGH WARM AIR ALOFT
WILL LIKELY LIMIT THE DEVELOPMENT OF THUNDERSTORMS EXCEPT NEAR
THE COLD FRONT. THEREFORE THE GREATEST POTENTIAL FOR SEVERE
WEATHER IS EXPECTED TO BE OVER WESTERN PORTIONS OF ILLINOIS AND
THE WESTERN PORTIONS OF THE OUTLOOK AREA. STORMS MAY INITIALLY
BE MORE DISCRETE AND MAY POSE A THREAT OF VERY LARGE
HAIL...DAMAGING WINDS AND EVEN ISOLATED TORNADOES DURING THE
EARLY TO MID EVENING HOURS. STORMS SHOULD EVENTUALLY MERGE INTO
A SQUALL LINE...WITH THE MAIN THREAT SHIFTING TO DAMAGING WIND
AS THE LINE PUSHES ACROSS THE EASTERN PORTIONS OF THE OUTLOOK
AREA OVERNIGHT. SOME DECREASE IN INSTABILITY OVERNIGHT WILL
LIKELY RESULT IN SOME WEAKENING OF STORMS AS THEY MOVE TO THE
EAST. THE POTENTIAL FOR LOCALLY HEAVY RAINFALL WILL ALSO
INCREASE OVERNIGHT...PARTICULARLY ACROSS SOUTHERN PARTS OF THE
OUTLOOK AREA.

GUSTY SOUTH WINDS AHEAD OF THE LOW WILL ALSO PRODUCE GUSTS UP TO
45 MPH PRIOR TO SUNSET THIS EVENING.

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

THERE IS A CHANCE OF THUNDERSTORMS MONDAY MORNING ACROSS
SOUTHEASTERN PORTIONS OF THE OUTLOOK AREA...MAINLY SOUTHEAST OF A
LINE FROM PONTIAC TO VALPARAISO.

THERE WILL BE ANOTHER CHANCE OF THUNDERSTORMS THURSDAY AND
THURSDAY NIGHT...AND AGAIN SATURDAY NIGHT AND SUNDAY.

Wind Advisory just issued for southern counties. Nothing yet for Cook, or surrounding counties.

Severe Weather Potential Tonight. See Below

SEVERE THUNDERSTORMS ARE POSSIBLE FROM LATE THIS AFTERNOON THROUGH
THE NIGHT TONIGHT.

WEATHER HAZARDS EXPECTED:

STRONG TO SEVERE THUNDERSTORMS CAPABLE OF PRODUCING:

* LARGE HAIL UP TO 1 TO 2 INCHES IN DIAMETER.

* STRONG DAMAGING WIND GUSTS OF 60 TO 70 MPH.

* ISOLATED TORNADOES POSSIBLE.

* LOCALLY HEAVY RAINFALL.

AREAS AFFECTED AND TIMING:

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP BY THE LATE
AFTERNOON OVER NORTHWESTERN ILLINOIS. SEVERE THUNDERSTORM
POTENTIAL WILL SPREAD EAST AND SOUTH ACROSS THE ENTIRE OUTLOOK
AREA THROUGH THE EVENING AND OVERNIGHT TONIGHT.

DISCUSSION:

INCREASING SOUTHERLY FLOW AHEAD OF A DEVELOPING LOW PRESSURE
SYSTEM AND AN ASSOCIATED STRONG COLD FRONT WILL BRING INCREASING
TEMPERATURES AND LOW LEVEL MOISTURE TO THE REGION TODAY. A CAPPING
INVERSION SHOULD BE IN PLACE UNTIL LATE THIS AFTERNOON INHIBITING
THUNDERSTORM DEVELOPMENT.

BY EARLY THIS EVENING...THE INVERSION SHOULD BREAK AND
THUNDERSTORMS SHOULD RAPIDLY DEVELOP OVER NORTHWESTERN ILLINOIS.
INITIALLY...THERE WILL BE POTENTIAL FOR DISCRETE SUPERCELLS OVER
PORTIONS OF THE OUTLOOK AREA WEST AND SOUTH OF A LINE FROM
ROCKFORD TO HERSCHER. LARGE HAIL...DAMAGING WINDS AND ISOLATED
TORNADOES WILL BE POSSIBLE WITH THESE STORMS.

BY LATE EVENING...CONVECTIVE MODE WILL TRANSITION TO A LINE OF
STRONG TO SEVERE STORMS...ALIGNING ALONG AND AHEAD OF THE COLD
FRONT. THESE STORMS WILL BE CAPABLE OF PRODUCING DAMAGING STRAIGHT
LINE WINDS...LARGE HAIL AND LOCALLY HEAVY RAINFALL. THE
PROGRESSION OF THE SOUTHERN PORTION OF THE FRONT MAY SLOW
DOWN...ALLOWING FOR WIDESPREAD HEAVY RAINFALL...ESPECIALLY SOUTH
OF INTERSTATE 80. THIS AREA MAY SEE WIDESPREAD RAINFALL OF 1 TO 2
INCHES WILL LOCALLY HIGHER AMOUNTS POSSIBLE.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY MORNING AND AGAIN ON SUNDAY
NIGHT FOR ALL OF NORTHERN ILLINOIS AND NORTHWEST INDIANA. SOME OF
THE THUNDERSTORMS COULD PRODUCE SEVERE WEATHER SUNDAY NIGHT.
 DAMAGING WIND AND HAIL WOULD BE THE MAIN THREATS. HOWEVER...THERE
IS ALSO A SMALL THREAT FOR A FEW TORNADOES SUNDAY EVENING. HEAVY
RAINFALL IS POSSIBLE WITH SOME OF THESE STORMS.

THE MAIN THREAT FOR SEVERE WEATHER WILL BE DURING THE EVENING INTO
 THE EARLY OVERNIGHT HOURS.

--
Gregg Dubin
wxfan1978@gmail.com

A taste of real spring tomorrow. We can see 70s tomorrow in most area, maybe even mid 70's. Its not going to last too long as a cold front moves through. Eyes to the sky once again tomorrow night (Sunday) as our area is in the "slight risk" area for severe weather. It appears most of the activity will fall south and west of the Chicago area, but Hail and damaging winds can happen.

DAY ONE...TODAY AND TONIGHT.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS LATE TONIGHT ACROSS
FAR NORTHERN ILLINOIS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY AND SUNDAY NIGHT FOR ALL
OF NORTHERN ILLINOIS AND NORTHWEST INDIANA. SOME OF THESE
THUNDERSTORMS COULD BE STRONG TO SEVERE...WITH DAMAGING WIND AS
THE MAIN THREAT. HEAVY RAINFALL IS POSSIBLE WITH SOME OF THESE
STORMS.

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

AT CHICAGO...THE AVERAGE HIGH TEMPERATURE WAS 43.8 DEGREES WHICH IS
2.3 DEGREES BELOW NORMAL. THE AVERAGE LOW TEMPERATURE WAS 28.8
DEGREES WHICH IS 0.3 DEGREES ABOVE NORMAL. THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 36.3 DEGREES WHICH IS 1.0 DEGREE BELOW NORMAL.
2.62 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 0.03 INCHES BELOW
NORMAL. 1.0 INCH OF SNOW WAS RECORDED WHICH IS 5.0 INCHES BELOW
NORMAL.

NO RECORDS WERE TIED OR SET DURING THE MONTH OF MARCH AT CHICAGO.

AT ROCKFORD...THE AVERAGE HIGH TEMPERATURE WAS 46.1 DEGREES WHICH
IS 0.6 DEGREES ABOVE NORMAL. THE AVERAGE LOW TEMPERATURE WAS 28.6
DEGREES WHICH IS 1.9 DEGREES ABOVE NORMAL. THE AVERAGE TEMPERATURE
FOR THE MONTH WAS 37.4 DEGREES WHICH IS 1.3 DEGREES ABOVE NORMAL.
3.41 INCHES OF PRECIPITATION WAS RECORDED WHICH IS 1.02 INCHES ABOVE
NORMAL. 0.1 INCHES OF SNOW WAS RECORDED WHICH IS 5.5 INCHES BELOW
NORMAL.

A NEW RECORD RAINFALL OF 1.67 INCHES WAS SET ON MARCH 20TH. THE
PREVIOUS RECORD WAS 0.70 INCHES SET IN 1933.

.NOW...
SCATTERED SHOWERS WILL CONTINUE TO MOVE SOUTHEAST ACROSS NORTHEAST
ILLINOIS AND NORTHWEST INDIANA THIS EVENING. THE STRONGEST SHOWERS
WILL PRODUCE BRIEF HEAVY RAIN AND POSSIBLY SOME SMALL HAIL. WIND
GUSTS TO 40 MPH AND A RUMBLE OR TWO OF THUNDER ARE ALSO POSSIBLE.

NOW...
AT 6 PM CDT DOPPLER RADAR WAS TRACKING WIDELY SCATTERED SHOWERS
ACROSS NORTHWESTERN ILLINOIS. THESE SHOWERS ARE MOVING TO THE
SOUTHEAST AT 35 MPH. PERSONS IN OR NEAR AREAS FROM DIXON
TO LA SALLE SOUTHEASTWARD TO PONTIAC AND ROBERTS CAN EXPECT
WIDELY SCATTERED SHOWERS...AND POSSIBLY A THUNDERSTORM THROUGH 8
PM THIS EVENING. GUSTY WINDS TO 40 MPH AND PEA SIZE HAIL WILL
ACCOMPANY THE STRONGER STORMS. ALL OF THESE SHOWERS AND
THUNDERSTORMS WILL DISSIPATE AFTER 8 PM.

.NOW...
ISOLATED RAIN SHOWERS ARE POSSIBLE ACROSS NORTHEASTERN
ILLINOIS THROUGH THIS EVENING. THERE IS ALSO A CHANCE OF
ISOLATED THUNDERSTORMS THROUGH EARLY EVENING. A FEW OF THE
THUNDERSTORMS COULD PRODUCE VERY SMALL HAIL. THIS EVENING THERE
COULD BE WIND GUSTS NEAR 25 MPH.

.NOW...
AT 125 PM DOPPLER RADAR WAS TRACKING A LINE OF PRIMARILY RAIN
ACROSS NORTHEASTERN ILLINOIS. HOWEVER...SOME REPORTS OF LIGHT
SNOW HAVE BEEN RECEIVED NEAR DE KALB ALONG THE BACK EDGE OF THE
LINE OF THIS RAINFALL. PERSONS ACROSS NORTHEASTERN ILLINOIS CAN
EXPECT TO EXPERIENCE A PERIOD OF RAIN...POTENTIALLY MIXING WITH A
VERY SHORT PERIOD OF LIGHT SNOW...POSSIBLY WITH BIG FLAKES AT
TIMES...THROUGH MID AFTERNOON. LITTLE OR NO ACCUMULATION
IS EXPECTED AS TEMPERATURES WILL REMAIN ABOVE FREEZING.
HOWEVER...THE SNOW MAY BRIEFLY REDUCE THE VISIBILITIES.

.NOW...
AT 12 PM DOPPLER RADAR WAS TRACKING A LINE OF PRIMARILY RAIN ACROSS
NORTHEASTERN ILLINOIS. HOWEVER...SOME REPORTS OF LIGHT SNOW HAVE
BEEN RECEIVED NEAR DE KALB ALONG THE BACK EDGE OF THE LINE OF
THIS RAINFALL. PERSONS ACROSS NORTHEASTERN ILLINOIS CAN EXPECT TO
EXPERIENCE A PERIOD OF RAIN...POTENTIALLY MIXING WITH A VERY SHORT
PERIOD OF LIGHT SNOW...POSSIBLY WITH BIG FLAKES AT TIMES...THROUGH
EARLY THIS AFTERNOON. LITTLE OR NO ACCUMULATION IS EXPECTED AS
TEMPERATURES WILL REMAIN ABOVE FREEZING. HOWEVER...THE SNOW MAY
BRIEFLY REDUCE THE VISIBILITIES.