418
FLUS43 KLOT 190708
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
208 AM CDT WED AUG 19 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-200715-
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-
208 AM CDT WED AUG 19 2026 /308 AM EDT WED AUG 19 2026/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
EARLY THIS MORNING THROUGH TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED FOG RISK EARLY THIS MORNING.
LIMITED THUNDERSTORM RISK.
ELEVATED FLOODING RISK.
DISCUSSION...
AREAS OF SHALLOW FOG MAY BECOME LOCALLY DENSE EARLY THIS MORNING
ACROSS PORTIONS OF INTERIOR NORTHERN ILLINOIS.
A CORRIDOR OF TRAINING THUNDERSTORMS MAY SET UP NEAR AND SOUTH OF
A PONTIAC TO FOWLER LINE THIS AFTERNOON INTO THE EVENING.
PRIMARY HAZARDS INCLUDE GUSTY WINDS AND TORRENTIAL RAINFALL
WHICH MAY LEAD TO FLASH FLOODING.
DAYS TWO THROUGH SEVEN
THURSDAY THROUGH TUESDAY.
FRIDAY AND SATURDAY...
LIMITED THUNDERSTORM RISK.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE EAST SOUTHEAST AROUND 20 MPH.
LMZ740>745-200715-
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-
208 AM CDT WED AUG 19 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
EARLY THIS MORNING THROUGH TONIGHT.
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
DAYS TWO THROUGH SEVEN
THURSDAY THROUGH TUESDAY.
FRIDAY AND SATURDAY...
LIMITED THUNDERSTORM RISK.
SUNDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
PETR
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