...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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