854
WGUS63 KLOT 190839
FFALOT
FLOOD WATCH
NATIONAL WEATHER SERVICE CHICAGO IL
339 AM CDT SAT SEP 19 2026
ILZ003>005-008-191645-
/O.CON.KLOT.FA.A.0016.000000T0000Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINNEBAGO-BOONE-MCHENRY-OGLE-
INCLUDING THE CITIES OF WOODSTOCK, ROCKFORD, OREGON, CRYSTAL LAKE,
BELVIDERE, ALGONQUIN, BYRON, MCHENRY, AND ROCHELLE
339 AM CDT SAT SEP 19 2026
..FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...PORTIONS OF NORTH CENTRAL AND NORTHEAST ILLINOIS, INCLUDING
THE FOLLOWING COUNTIES, IN NORTH CENTRAL ILLINOIS, BOONE, OGLE AND
WINNEBAGO. IN NORTHEAST ILLINOIS, MCHENRY.
* WHEN...UNTIL 1 PM CDT THIS AFTERNOON.
* IMPACTS...CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. ROADS AND
STREETS MAY BE FLOODED.
* ADDITIONAL DETAILS...
- SHOWERS AND THUNDERSTORMS WILL PRODUCE HEAVY RAIN THIS MORNING
WHICH MAY CAUSE LOCALIZED FLASH FLOODING. ADDITIONAL SHOWERS AND
THUNDERSTORMS MAY PRODUCE HEAVY RAIN AND LOCALIZED FLASH FLOODING
TONIGHT WHEN ANOTHER FLOOD WATCH FOR FLASH FLOODING MAY BE
NEEDED.
- 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.
ILZ006-010>013-020-103>106-INZ001-002-191645-
/O.CON.KLOT.FA.A.0016.260919T0900Z-260919T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAKE IL-LEE-DE KALB-KANE-DUPAGE-KENDALL-NORTHERN COOK-CENTRAL
COOK-SOUTHERN COOK-NORTHERN WILL-LAKE IN-PORTER-
INCLUDING THE CITIES OF WHEATON, CICERO, MERRILLVILLE, ORLAND PARK,
GARY, DOWNERS GROVE, MOKENA, PLAINFIELD, HAMMOND, SYCAMORE, DEKALB,
CALUMET CITY, SCHAUMBURG, LA GRANGE, OAK PARK, BUFFALO GROVE,
NORTHBROOK, WAUKEGAN, DIXON, AURORA, OAK FOREST, GURNEE, PARK FOREST,
PALATINE, CAROL STREAM, VALPARAISO, MUNDELEIN, LOMBARD, CHESTERTON,
EVANSTON, YORKVILLE, BOLINGBROOK, PORTAGE, ELGIN, OAK LAWN, CHICAGO,
PLANO, DES PLAINES, LEMONT, NAPERVILLE, JOLIET, AND OSWEGO
339 AM CDT SAT SEP 19 2026
..FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...PORTIONS OF ILLINOIS, INCLUDING THE FOLLOWING AREAS,
CENTRAL COOK, DE KALB, DUPAGE, KANE, KENDALL, LAKE IL, LEE,
NORTHERN COOK, NORTHERN WILL AND SOUTHERN COOK AND NORTHWEST
INDIANA, INCLUDING THE FOLLOWING AREAS, LAKE IN AND PORTER.
* WHEN...UNTIL 1 PM CDT THIS AFTERNOON.
* 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 WILL PRODUCE HEAVY RAIN THIS MORNING
WHICH MAY CAUSE LOCALIZED FLASH FLOODING. ADDITIONAL SHOWERS AND
THUNDERSTORMS MAY PRODUCE HEAVY RAIN AND LOCALIZED FLASH FLOODING
TONIGHT WHEN ANOTHER FLOOD WATCH FOR FLASH FLOODING MAY BE
NEEDED.
- 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.
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