657
FLUS43 KLOT 150828
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
328 AM CDT MON JUN 15 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-160830-
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-
328 AM CDT MON JUN 15 2026 /428 AM EDT MON JUN 15 2026/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TODAY AND TONIGHT.
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
DAYS TWO THROUGH SEVEN
TUESDAY THROUGH SUNDAY.
TUESDAY...
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.
WEDNESDAY...
ELEVATED FLOODING RISK.
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 3 OF 5 SEVERE THUNDERSTORM RISK.
THURSDAY...
HIGH SWIM RISK INDIANA LAKE MICHIGAN BEACHES.
SATURDAY AND SUNDAY...
LIMITED THUNDERSTORM RISK.
DISCUSSION...
SCATTERED THUNDERSTORMS ARE POSSIBLE TUESDAY AFTERNOON, A FEW
OF THESE THUNDERSTORMS MAY BECOME SEVERE.
SEVERE THUNDERSTORMS ARE LIKELY ACROSS THE ENTIRE AREA ON
WEDNESDAY WITH ALL SEVERE HAZARDS POSSIBLE INCLUDING LARGE
HAIL, DAMAGING WINDS AND TORNADOES, SOME OF WHICH MAY BE STRONG.
TORRENTIAL RAIN AND LOCALIZED FLASH FLOODING WILL ALSO BE
POSSIBLE WEDNESDAY.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
LMZ740>745-160830-
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-
328 AM CDT MON JUN 15 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.
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
DAYS TWO THROUGH SEVEN
TUESDAY THROUGH SUNDAY.
TUESDAY...
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.
WEDNESDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 SEVERE THUNDERSTORM RISK.
THURSDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
SATURDAY AND SUNDAY...
LIMITED THUNDERSTORM RISK.
VISIT US AT WWW.WEATHER.GOV/CHICAGO
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page