457
FLUS43 KLOT 241939
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
239 PM CDT TUE JUN 24 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-251945-
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-
239 PM CDT TUE JUN 24 2025 /339 PM EDT TUE JUN 24 2025/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TONIGHT.
WEATHER HAZARDS EXPECTED...
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 DAMAGING WIND RISK...UP TO 50 MPH.
LIMITED FLOODING RISK.
LIMITED EXCESSIVE HEAT RISK.
DISCUSSION...
ISOLATED TO WIDELY SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH
MID EVENING. IN ADDITION TO LIGHTNING, THE STRONGEST STORMS MAY BE
CAPABLE OF LOCALIZED FLOODING, MAINLY THIS EVENING INTO THE EARLY
OVERNIGHT HOURS. ANY DAMAGING WIND THREAT WOULD BE ISOLATED
THROUGH EARLY EVENING.
AFTERNOON HEAT INDICES OF 100 TO 105 DEGREES MAINLY SOUTH OF I-80 WILL
EASE THIS EVENING.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY AND THURSDAY...
LIMITED FLOODING RISK.
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.
FRIDAY...
LIMITED THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.
SATURDAY THROUGH MONDAY...
LIMITED THUNDERSTORM RISK.
DISCUSSION...
PERIODIC THUNDERSTORM CHANCES WILL CONTINUE THROUGH EARLY NEXT
WEEK. THE STRONGEST STORMS MAY BE CAPABLE OF PRODUCING DAMAGING
WINDS AND LOCALIZED FLOODING.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS NOT LIKELY, BUT ANY REPORTS OF FLOODING
DUE TO HEAVY RAIN THIS EVENING WILL BE APPRECIATED.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE NORTHEAST AT 30 MPH.
LMZ740>745-251945-
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-
239 PM CDT TUE JUN 24 2025
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...
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 THUNDERSTORM WIND GUST RISK...UP TO 40 KNOTS.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY AND THURSDAY...
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.
FRIDAY THROUGH MONDAY...
LIMITED THUNDERSTORM RISK.
KMD
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