122
WGUS83 KLOT 200516
FLSLOT
FLOOD ADVISORY
NATIONAL WEATHER SERVICE CHICAGO IL
1216 AM CDT SUN SEP 20 2026
ILC037-099-103-200815-
/O.NEW.KLOT.FA.Y.0121.260920T0516Z-260920T0815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DE KALB IL-LA SALLE IL-LEE IL-
1216 AM CDT SUN SEP 20 2026
..FLOOD ADVISORY IN EFFECT UNTIL 315 AM CDT EARLY THIS MORNING
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.
* WHERE...SOUTHERN DE KALB COUNTY IN NORTH CENTRAL ILLINOIS...
NORTHERN LA SALLE COUNTY IN NORTH CENTRAL ILLINOIS...
LEE COUNTY IN NORTH CENTRAL ILLINOIS...
* WHEN...UNTIL 315 AM CDT.
* IMPACTS...CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. ROADS AND
STREETS MAY BE FLOODED.
* ADDITIONAL DETAILS...
- AT 1213 AM CDT, DOPPLER RADAR INDICATED HEAVY RAIN DUE TO
TRAINING THUNDERSTORMS. MINOR FLOODING IS ONGOING OR EXPECTED TO
BEGIN SHORTLY IN THE ADVISORY AREA. UP TO 2 INCHES OF RAIN HAVE
FALLEN.
- ADDITIONAL RAINFALL AMOUNTS IN EXCESS OF 1 TO 3 INCHES ARE
POSSIBLE OVER THE AREA OVERNIGHT WHICH MAY RESULT IN ADDITIONAL
FLOODING.
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SANDWICH, MENDOTA, AMBOY, SHERIDAN, SHABBONA, LAKE HOLIDAY,
HINCKLEY, SOMONAUK, EARLVILLE, WATERMAN, SERENA, LELAND, PAW PAW,
SUBLETTE, WOODHAVEN LAKES, MILLINGTON, LEE, COMPTON, TROY GROVE,
NELSON, WEST BROOKLYN, HARMON, TRIUMPH, PRAIRIE CENTER AND LEE
CENTER.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLOOD ADVISORY MEANS MINOR FLOODING ALONG WATERWAYS AND OTHER POOR
DRAINAGE AREAS IS IMMINENT OR MAY ALREADY BE OCCURRING. PERSONS IN
THE ADVISORY AREA SHOULD USE CAUTION AND AVOID FLOOD WATERS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
LAT...LON 4180 8963 4179 8860 4145 8860 4145 8917
4158 8917 4158 8939 4159 8963
PETR
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