301
WGUS63 KLOT 192057
FFALOT
FLOOD WATCH
NATIONAL WEATHER SERVICE CHICAGO IL
357 PM CDT SAT SEP 19 2026
ILZ003>006-008-010>013-020-103>106-INZ001-002-200500-
/O.CON.KLOT.FA.A.0016.000000T0000Z-260920T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-
KENDALL-NORTHERN COOK-CENTRAL COOK-SOUTHERN COOK-NORTHERN WILL-
LAKE IN-PORTER-
INCLUDING THE CITIES OF CHICAGO, CICERO, EVANSTON, PARK FOREST,
CHESTERTON, ROCHELLE, BELVIDERE, OAK LAWN, NAPERVILLE, WHEATON,
AURORA, GURNEE, LA GRANGE, ROCKFORD, CAROL STREAM, JOLIET, ALGONQUIN,
ELGIN, MERRILLVILLE, PLANO, OAK FOREST, SCHAUMBURG, PLAINFIELD,
WAUKEGAN, LOMBARD, OSWEGO, LEMONT, BUFFALO GROVE, DOWNERS GROVE,
ORLAND PARK, VALPARAISO, MOKENA, NORTHBROOK, CALUMET CITY, WOODSTOCK,
BOLINGBROOK, PORTAGE, GARY, MCHENRY, YORKVILLE, HAMMOND, CRYSTAL
LAKE, BYRON, SYCAMORE, DIXON, DES PLAINES, OREGON, OAK PARK,
MUNDELEIN, DEKALB, AND PALATINE
357 PM CDT SAT SEP 19 2026
..FLOOD WATCH REMAINS IN EFFECT THROUGH EARLY SUNDAY MORNING
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...PORTIONS OF ILLINOIS, INCLUDING THE FOLLOWING AREAS, BOONE,
CENTRAL COOK, DE KALB, DUPAGE, KANE, KENDALL, LAKE IL, LEE,
MCHENRY, NORTHERN COOK, NORTHERN WILL, OGLE, SOUTHERN COOK AND
WINNEBAGO AND NORTHWEST INDIANA, INCLUDING THE FOLLOWING AREAS,
LAKE IN AND PORTER.
* WHEN...THROUGH EARLY SUNDAY MORNING.
* IMPACTS...CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. FLOODING
MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. ROADS AND STREETS MAY
BE FLOODED.
* ADDITIONAL DETAILS...
- SHOWERS AND THUNDERSTORMS, SOME WITH TORRENTIAL RAINFALL WITH
HOURLY RATES AROUND 2 INCHES PER HOUR, ARE EXPECTED TO REDEVELOP
ACROSS THE WATCH AREA THIS EVENING AND OVERNIGHT. REPEATED ROUNDS
OF HEAVY RAINFALL MAY RESULT IN AREAS OF FLASH FLOODING AND RAPID
RISES ON AREA RIVERS.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLOOD WATCH FOR FLASH FLOODING MEANS RAPID-ONSET FLOODING IS
POSSIBLE, BUT NOT YET CERTAIN, BASED UPON THE LATEST FORECASTS. FLASH
FLOODING IS A DANGEROUS SITUATION. PERSONS WITH INTERESTS ALONG AREA
RIVERS, CREEKS, AND OTHER WATERWAYS SHOULD MONITOR THE LATEST
FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.
CARLAW
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