320
FLUS43 KLOT 260930
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
430 AM CDT WED AUG 26 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-270930-
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-
430 AM CDT WED AUG 26 2026 /530 AM EDT WED AUG 26 2026/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 DAMAGING WIND RISK...UP TO 60 MPH.
LEVEL 2 OF 5 LARGE HAIL RISK...UP TO HALF DOLLAR SIZE.
LEVEL 1 OF 5 TORNADO RISK.
LIMITED FLOODING RISK.
DISCUSSION...
ISOLATED NON-SEVERE THUNDERSTORMS MAY PERSIST INTO NORTHERN
ILLINOIS THIS MORNING, MAINLY NORTH OF INTERSTATE 88.
SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG A COLD
FRONT THIS AFTERNOON INTO EARLY EVENING WITH THE GREATEST COVERAGE
AND SEVERE THREAT FAVORED NEAR AND EAST OF A PAXTON TO VALPARAISO
LINE. THE STRONGEST STORMS MAY BE CAPABLE OF LOCALIZED DAMAGING
WINDS AND LARGE HAIL.
DAYS TWO THROUGH SEVEN
THURSDAY THROUGH TUESDAY.
SUNDAY THROUGH TUESDAY...
LIMITED THUNDERSTORM RISK AT TIMES.
SPOTTER INFORMATION STATEMENT
SPOTTERS MAY BE NEEDED THIS AFTERNOON INTO EARLY EVENING.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE SOUTHEAST AROUND 20 TO 30 MPH.
LMZ740>745-270930-
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-
430 AM CDT WED AUG 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
TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 THUNDERSTORM WIND GUST RISK...UP TO 50 KNOTS.
LEVEL 1 OF 5 HAIL RISK...UP TO QUARTER SIZE.
DAYS TWO THROUGH SEVEN
THURSDAY THROUGH TUESDAY.
SUNDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
LIMITED THUNDERSTORM RISK.
MONDAY AND TUESDAY...
LIMITED THUNDERSTORM RISK AT TIMES.
PETR
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