678
FLUS43 KLOT 012046
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
346 PM CDT TUE APR 1 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-022100-
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-
346 PM CDT TUE APR 1 2025 /446 PM EDT TUE APR 1 2025/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TONIGHT.
WEATHER HAZARDS EXPECTED...
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 LARGE HAIL RISK...UP TO AROUND 1 INCH IN DIAMETER.
LIMITED FLOODING RISK.
DISCUSSION...
SCATTERED THUNDERSTORMS ARE EXPECTED LATE TONIGHT. ONE OR TWO OF
THE STRONGEST STORMS COULD BECOME SEVERE LATE TONIGHT, CAPABLE OF
PRODUCING HAIL UP TO AROUND 1 INCH IN DIAMETER. SOME OF THE
STORMS LATE TONIGHT MAY ALSO PRODUCE LOCALLY HEAVY RAINFALL, WHICH
COULD LEAD TO SOME LOCALIZED FLOODING OF FLOOD PRONE LOW LYING
AREAS.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY...
LIMITED FLOODING RISK.
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 3 OF 5 SEVERE THUNDERSTORM RISK.
ELEVATED NON THUNDERSTORM WIND RISK.
FRIDAY...
LIMITED FLOODING RISK.
DISCUSSION...
SHOWERS AND THUNDERSTORMS ARE LIKELY WEDNESDAY MORNING, ESPECIALLY
NORTH OF I-80. LOCALLY HEAVY RAINFALL COULD LEAD TO SOME MINOR
FLOODING OF FLOOD PRONE LOW LYING AREAS.
THERE IS A CHANCE OF ADDITIONAL THUNDERSTORMS WEDNESDAY AFTERNOON
AND EARLY EVENING. IT IS PLAUSIBLE THAT ADDITIONAL THUNDERSTORMS
DON'T OCCUR WEDNESDAY AFTERNOON AND EVENING, HOWEVER, IF STORMS DO
DEVELOP THEN SOME COULD BE SEVERE AND CAPABLE OF PRODUCING
TORNADOES.
SPOTTER INFORMATION STATEMENT
SPOTTERS MAY BE NEEDED LATE TONIGHT AND AGAIN WEDNESDAY
AFTERNOON AND EVENING.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE NORTHEAST AT 45 MPH.
LMZ740>745-022100-
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-
346 PM CDT TUE APR 1 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...
GALE FORCE WINDS AND HAZARDOUS WAVES.
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 HAIL RISK...UP TO UP TO 1 INCH IN DIAMETER.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY...
GALE FORCE WINDS AND HAZARDOUS WAVES.
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 3 OF 5 SEVERE THUNDERSTORM RISK.
SATURDAY THROUGH MONDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
- IZZI
VISIT US AT WWW.WEATHER.GOV/CHICAGO
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page The Nexlab IN Page Main Text Page