079
FLUS43 KLOT 251917
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
217 PM CDT TUE AUG 25 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-261930-
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-
LA SALLE-KENDALL-GRUNDY-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
NORTHERN COOK-CENTRAL COOK-SOUTHERN COOK-NORTHERN WILL-
SOUTHERN WILL-EASTERN WILL-LAKE IN-PORTER-NEWTON-JASPER-BENTON-
217 PM CDT TUE AUG 25 2026 /317 PM EDT TUE AUG 25 2026/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED THUNDERSTORM RISK LATE TONIGHT.
DISCUSSION...
SCATTERED SHOWERS AND ISOLATED NON-SEVERE THUNDERSTORMS MAY
DEVELOP LATE TONIGHT THROUGH AROUND SUNRISE WEDNESDAY,
PARTICULARLY CLOSER TO THE ILLINOIS-WISCONSIN STATE LINE.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY...
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 SEVERE THUNDERSTORM RISK.
SUNDAY AND MONDAY...
LIMITED THUNDERSTORM RISK.
DISCUSSION...
SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG A COLD
FRONT WEDNESDAY AFTERNOON INTO EARLY EVENING WITH THE GREATEST
COVERAGE FAVORED AROUND AND EAST OF A VALPARAISO TO PAXTON LINE.
A FEW STORMS COULD BE STRONG TO SEVERE AND CAPABLE OF LOCALIZED
DAMAGING WINDS AND LARGE HAIL.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE EAST AT 20 MPH.
LMZ740>745-261930-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
217 PM CDT TUE AUG 25 2026
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE ILLINOIS
NEARSHORE WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE
WATERS OF LAKE MICHIGAN.
DAY ONE
TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED THUNDERSTORM RISK TOWARD SUNRISE.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY...
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 SEVERE THUNDERSTORM RISK.
SUNDAY AND MONDAY...
LIMITED THUNDERSTORM RISK.
KLUBER
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