163
FLUS43 KLOT 302017
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
317 PM CDT THU APR 30 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-012030-
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-
317 PM CDT THU APR 30 2026 /417 PM EDT THU APR 30 2026/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED FROST RISK IN NORTHWEST ILLINOIS.
DISCUSSION...
PATCHY FROST IS EXPECTED TO DEVELOP ACROSS NORTHWEST ILLINOIS
OVERNIGHT INTO FRIDAY MORNING.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY.
FRIDAY MORNING...
LIMITED FROST AND OR FREEZE RISK NORTHWEST ILLINOIS.
SATURDAY MORNING...
ELEVATED FROST AND OR FREEZE RISK AWAY FROM LAKE MICHIGAN.
SUNDAY NIGHT AND MONDAY...
LIMITED THUNDERSTORM RISK.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
LMZ740>745-012030-
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-
317 PM CDT THU APR 30 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.
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY.
SUNDAY NIGHT THROUGH MONDAY...
LIMITED THUNDERSTORM RISK.
YACK
VISIT US AT WWW.WEATHER.GOV/CHICAGO
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page