205
WGUS63 KLOT 200123
FFALOT
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE CHICAGO IL
823 PM CDT SAT SEP 19 2026
ILZ019-021-023-107-108-200930-
/O.EXA.KLOT.FA.A.0016.000000T0000Z-260920T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LA SALLE-GRUNDY-KANKAKEE-SOUTHERN WILL-EASTERN WILL-
INCLUDING THE CITIES OF BOURBONNAIS, MANHATTAN, WILMINGTON, PEOTONE,
BEECHER, OTTAWA, CHANNAHON, BRADLEY, MINOOKA, MARSEILLES, CRETE,
STREATOR, KANKAKEE, LA SALLE, MENDOTA, COAL CITY, AND MORRIS
823 PM CDT SAT SEP 19 2026
..FLOOD WATCH IN EFFECT UNTIL 7 AM CDT SUNDAY
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE.
* WHERE...PORTIONS OF NORTH CENTRAL AND NORTHEAST ILLINOIS, INCLUDING
THE FOLLOWING AREAS, IN NORTH CENTRAL ILLINOIS, LA SALLE. IN
NORTHEAST ILLINOIS, EASTERN WILL, GRUNDY, KANKAKEE AND SOUTHERN
WILL.
* WHEN...UNTIL 7 AM CDT SUNDAY.
* IMPACTS...CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. FLOODING
MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. UNDERPASSES MAY BE
FLOODED. ROADS AND STREETS MAY BE FLOODED.
* ADDITIONAL DETAILS...
- ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS EXPECTED LATE THIS
EVENING AND OVERNIGHT. SWATHS OF HEAVY TO VERY HEAVY RAINFALL
WITH 2+ INCH PER HOUR RAINFALL RATES ARE LIKELY TO OCCUR WITHIN
THE WATCH AREA AND MAY RESULT IN AREAS OF FLASH FLOODING AND
CAUSE RAPID RISES ON AREA RIVERS, CREEKS, AND STREAMS.
- 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.
ILZ003>006-008-010>013-020-103>106-INZ001-002-200930-
/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 LEMONT, CHESTERTON, CALUMET CITY, MOKENA,
HAMMOND, PLAINFIELD, CHICAGO, ROCHELLE, JOLIET, BELVIDERE, PLANO,
DOWNERS GROVE, VALPARAISO, CRYSTAL LAKE, CICERO, BYRON, NAPERVILLE,
CAROL STREAM, YORKVILLE, ALGONQUIN, MUNDELEIN, WOODSTOCK, ROCKFORD,
OAK FOREST, DEKALB, OREGON, OSWEGO, ORLAND PARK, SCHAUMBURG, DES
PLAINES, MERRILLVILLE, PARK FOREST, GURNEE, WAUKEGAN, ELGIN, LOMBARD,
PALATINE, NORTHBROOK, AURORA, WHEATON, OAK LAWN, PORTAGE, EVANSTON,
BUFFALO GROVE, DIXON, LA GRANGE, MCHENRY, OAK PARK, BOLINGBROOK,
SYCAMORE, AND GARY
823 PM CDT SAT SEP 19 2026
..FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY
* 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...UNTIL 7 AM CDT SUNDAY.
* IMPACTS...CREEKS AND STREAMS MAY RISE OUT OF THEIR BANKS. FLOODING
MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. UNDERPASSES MAY BE
FLOODED. ROADS AND STREETS MAY BE FLOODED.
* ADDITIONAL DETAILS...
- ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS EXPECTED LATE THIS
EVENING AND OVERNIGHT. SWATHS OF HEAVY TO VERY HEAVY RAINFALL
WITH 2+ INCH PER HOUR RAINFALL RATES ARE LIKELY TO OCCUR WITHIN
THE WATCH AREA AND MAY RESULT IN AREAS OF FLASH FLOODING AND
CAUSE RAPID RISES ON AREA RIVERS, CREEKS, AND STREAMS.
- 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.
OGOREK
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