321
FLUS43 KLOT 261919
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
219 PM CDT FRI JUN 26 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-271930-
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-
219 PM CDT FRI JUN 26 2026 /319 PM EDT FRI JUN 26 2026/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED FLOODING RISK SOUTH OF U.S. 24.
DISCUSSION...
SHOWERS AND AN ISOLATED THUNDERSTORM SOUTH OF THE U.S. 24 CORRIDOR
THIS AFTERNOON AND TONIGHT COULD PRODUCE LOCALLY HEAVY RAINFALL.
DAYS TWO THROUGH SEVEN
SATURDAY THROUGH THURSDAY.
SATURDAY NIGHT AND SUNDAY MORNING...
LIMITED THUNDERSTORM RISK, MAINLY SOUTH AND WEST OF THE FOX VALLEY.
MONDAY THROUGH THURSDAY...
ELEVATED EXCESSIVE HEAT RISK.
DISCUSSION...
DANGEROUS HEAT WITH AFTERNOON HEAT INDEX VALUES OVER 100 DEGREES
IS EXPECTED BEGINNING MONDAY AND WILL LIKELY CONTINUE WELL INTO
NEXT WEEK.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
LMZ740>745-271930-
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-
219 PM CDT FRI JUN 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
TONIGHT.
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
DAYS TWO THROUGH SEVEN
SATURDAY THROUGH THURSDAY.
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
DK
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