335
WGUS53 KLOT 271702
FFWLOT
ILC031-043-272100-
/O.NEW.KLOT.FF.W.0037.260727T1702Z-260727T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
1202 PM CDT MON JUL 27 2026
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
COOK COUNTY IN NORTHEASTERN ILLINOIS...
EASTERN DUPAGE COUNTY IN NORTHEASTERN ILLINOIS...
* UNTIL 400 PM CDT.
* AT 1202 PM CDT, DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING RAINFALL RATES OF 1 TO 2 INCHES PER HOUR.
UP TO 2 INCHES OF RAINFALL HAS OCCURRED DUE TO THESE STORMS IN
NORTHWESTERN COOK COUNTY. FLASH FLOODING IS ONGOING OR EXPECTED TO
BEGIN SHORTLY.
HAZARD...FLASH FLOODING.
SOURCE...RADAR AND AUTOMATED GAUGES.
IMPACT...RAPID-ONSET FLOODING OF CREEKS, STREAMS, DRAINAGE
DITCHES, STREETS, UNDERPASSES, LOW-LYING AREAS, AND
OTHER POOR DRAINAGE AREAS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CHICAGO, CICERO, ARLINGTON HEIGHTS, EVANSTON, SCHAUMBURG,
BOLINGBROOK, PALATINE, SKOKIE, DES PLAINES, OAK LAWN, BERWYN,
MOUNT PROSPECT, WHEATON, HOFFMAN ESTATES, OAK PARK, DOWNERS GROVE,
GLENVIEW, ELMHURST, LOMBARD AND BUFFALO GROVE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS RAPID-ONSET FLOODING IS IMMINENT OR MAY
ALREADY BE OCCURRING. PERSONS ALONG CREEKS, DRAINAGE DITCHES, AND
OTHER WATERWAYS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE
AND PROPERTY.
LAT...LON 4215 8824 4215 8774 4211 8770 4208 8767
4199 8764 4197 8762 4195 8762 4193 8761
4190 8758 4188 8760 4185 8759 4177 8755
4176 8752 4172 8751 4172 8791 4168 8797
4169 8803 4173 8803 4199 8818
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
WSL
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