371
FLUS43 KLOT 260841
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
341 AM CDT THU MAR 26 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-270845-
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-
341 AM CDT THU MAR 26 2026 /441 AM EDT THU MAR 26 2026/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED...
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 3 OF 5 LARGE HAIL RISK...POSSIBLY OVER 2 INCHES IN DIAMETER.
LEVEL 3 OF 5 DAMAGING WIND RISK...UP TO 60 MPH.
LIMITED FLOODING RISK WELL SOUTH OF I-80.
DISCUSSION...
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND BEHIND A SOUTHWARD
SURGING COLD THIS AFTERNOON, CONTINUING THROUGH AT LEAST EARLY
EVENING SOUTH OF THE I-80 CORRIDOR. CONDITIONS ARE FAVORABLE FOR
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL POTENTIALLY
LARGER THAN 2 INCHES IN DIAMETER, AS WELL AS DAMAGING WINDS IN
EXCESS OF 60 MPH. ADDITIONALLY, THE POTENTIAL OF REPEATED
THUNDERSTORMS MOVING OVER THE SAME AREA SOUTH OF THE KANKAKEE
RIVER VALLEY LATE AFTERNOON THROUGH THE EVENING MAY RESULT IN
SOME LOCALIZED FLOODING.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY.
SUNDAY AFTERNOON...
ELEVATED FIRE WEATHER RISK.
MONDAY AND TUESDAY...
LIMITED THUNDERSTORM RISK.
SPOTTER INFORMATION STATEMENT
SPOTTERS WILL LIKELY BE NEEDED THIS AFTERNOON AND EARLY EVENING.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE EAST AT 50 TO 60 MPH.
LMZ740>745-270845-
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-
341 AM CDT THU MAR 26 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
TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED...
GALE FORCE WINDS AND OR VERY HAZARDOUS WAVES.
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 HAIL RISK...UP TO 2 INCHES IN DIAMETER.
LEVEL 1 OF 5 THUNDERSTORM WIND GUST RISK...UP TO 50.
LIMITED FOG RISK.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY.
FRIDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
MONDAY AND TUESDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
KLUBER
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