747
WGUS53 KLOT 180112
FFWLOT
ILC007-097-111-180700-
/O.NEW.KLOT.FF.W.0011.260418T0112Z-260418T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
812 PM CDT FRI APR 17 2026
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BOONE COUNTY IN NORTH CENTRAL ILLINOIS...
LAKE IL COUNTY IN NORTHEASTERN ILLINOIS...
MCHENRY COUNTY IN NORTHEASTERN ILLINOIS...
* UNTIL 200 AM CDT.
* AT 812 PM CDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
EXTREMELY HEAVY RAIN ACROSS AND MOVING INTO THE WARNED AREA. THESE
STORMS WILL PRODUCE RAINFALL RATES UP TO AN INCH IN LESS 30
MINUTES. ADDITIONAL RAINFALL AMOUNTS OF 1 TO LOCALLY OVER 2 INCHES
ARE EXPECTED IN THE WARNED AREA. FLASH FLOODING IS ONGOING OR
EXPECTED TO BEGIN SHORTLY.
HAZARD...FLASH FLOODING.
SOURCE...RADAR.
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...
WAUKEGAN, ARLINGTON HEIGHTS, PALATINE, BUFFALO GROVE, CRYSTAL
LAKE, WHEELING, NORTHBROOK, NORTH CHICAGO, GURNEE, MUNDELEIN,
ALGONQUIN, HIGHLAND PARK, LAKE IN THE HILLS, ROUND LAKE BEACH,
MCHENRY, BELVIDERE, VERNON HILLS, WOODSTOCK, ZION AND HUNTLEY.
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 4247 8778 4238 8779 4235 8781 4231 8781
4229 8782 4215 8774 4216 8777 4215 8776
4215 8894 4250 8894 4249 8780
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1 INCH IN 30 MINUTES
- IZZI
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