The severe weather blog will now shut down and all remaining coverage on this flood event will be posted on our regular Chicago Weather Center blog. 

As the center of low pressure moves northeast across central Wisconsin, the associated cold will sweep through the chicago arera this evening - and as it does, rain will be coming to an end from west to east. At 7pm the cold front had passed through Rockford, West Chicago (DuPage Airport), Morris and Romeoville, where winds had shifted to the west-southwest gusting over 35 miles per hour and temperatures were quickly falling through the 50s into the 40s. The front was bearing down on O'Hare, Wheeling, and Midway where temperatures were still in the 60s with already diminsihing rains and southerly winds gusting over 30 miles per hour.

Some rainfall totals as of 7PM this evening...

Rainfall            Location

(inches)    

7.00      Elmhurst (DuPage)

6.08      Westmont (DuPage)

5.30      Mokena (LaSalle)

4.42      Midway (Cook)

5.54      O'Hare (Cook)

6.97      Lisle (DuPage)

5.78      Ottawa (LaSalle)

6.81       Glen Ellyn (DuPage)

6.95       Oak Brook (DuPage)

6,13       Addison (DuPage)

6.02      Mount Prospect (Cook)

5.95      Winnetka (Cook)

The Chicago National Weather Service has issued major flood stage forecasts for the Des Plaines, Rock, Fox, and Kankakee Rivers. Hydrogaphs showing anticipated peak stage forecasts.

UPDATE 9:15AM:  Good news: The heavy rain threat has ended for the short term.  Light to moderate showers are expected to continue across the Chicago area between 9AM and Noon.   After 12PM, a few stronger thunderstorms may redevelop.  The afternoon storms will once again have the potential to produce brief heavy rain, although additional rain fall totals will most likely be in the .50" to 1.50" range.

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UPDATE 8:35AM:  A Tornado Watch has been issued for all of northern Indiana and portions of southwest Michigan until 4PM CDT / 5PM EDT.   While a strong to severe thunderstorm is possible this afternoon in the Chicago area, the greatest threat for organized severe weather activity will be south and east of Chicago.

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UPDATE 8:30AM: A Severe Thunderstorm Warning is in effect until 9:45AM for potions of northwest Indiana including Porter and Lake counties south of Crown Point and Valparaiso.  Little or no lightning is being noted with these storms and no severe weather has been reported as of 8:35AM.  Wind gusts of 45mph to 60mph are the main threat.

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UPDATE 8:25AM:   The Severe Thunderstorm Warning for for portions of Cook, DuPage and Will counties expired at 8:15AM.  A wind gust of 62mph was clocked on Chicago's northwest side but no damage was reported.

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UPDATE  7:55AM:  The most recent line of thunderstorms to roll through Chicago dropped anywhere from .20" to .80" of additional rain.  In Batavia, 0.50" of rain fell in the past hour.

Storm totals are up to 6.13" in Addison and unofficially 5.67" at Chicago-O'Hare.

A 62mph wind gust was clocked shortly before 7:40AM at our WeatherBug station on Chicago's northwest side at Addison and Austin.

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7:30AM:  A Severe Thunderstorm Warning has been issued by the National Weather Service until 8:15AM for portions of Cook, Kankakee, DuPage and Will counties.  Gusty winds of 45 to 60mph appear to be the main severe weather threat at this time.  Radar is indicating little or no hail with this line of storms.

BELOW: Radar snapshot at 7:15AM.  This line of thunderstorms is expected to drop another .50" of rain over much of the Chicago area between 7:00AM and 8:30AM.

Updated higher rainfall reports  as of 10AM…

Rainfall          Location

(inches)

4.94                 Wauconda

4.90                 Lincolnwood

4.78                 Evanston

4.76                 Rogers Park

4.90                 Peru

4.70                 Seneca

5.05                 Mendota

4.78                 Dixon

4.95                 Algonquin

4.62                 Cary

4.87                 Batavia

4.95                 Oak Park

4.60                 Harwood Hts.

4.88                 Lisbon

6.66                 Aurora

Downstate:

7.18                 Princeton (Bureau County)

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Updated rainfall reports 9:30AM:

Rainfall      Location

(inch)

6.69        Oak Brook

5.78        Lombard

5.30        Yorkville

5.21        Winfield

5.17        Darien

5.41        Montrose Harbor

5.61        Glen Ellyn

5.25        LaSalle

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Widespread rains of 3 to in excess of 6 inches has occurred in the past 24 hours with this storm system – following is a list of Chicago-area reports of 5-inches or more…

Amount                  Location

(inches)

5.91                 Carol Stream

5.47                 Bolingbrook

5.95                 Elmhurst

5.54                 Villa Park

5.77                 Wheaton

5.37                 Oglesby

5.74                 Aurora

6.14                 Naperville

5.23                 Lombard

5.02                 Winnetka

5.45                 Melrose Park

5.36                 Glen  Ellyn

5.90                 Lisle

5.17                 Sugar Grove

5.52                 Ottawa

5.04                 Marseilles

5.23                 LaSalle

5.85                 Tonica

5.35                 Montgomery

6.13                 Addison

5.00                 Westmont