736
FLUS43 KLOT 150829
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
329 AM CDT THU OCT 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-
329 AM CDT THU OCT 15 2026 /429 AM EDT THU OCT 15 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.
DISCUSSION...
A FEW THUNDERSTORMS MAY DEVELOP BETWEEN 5 AND 9 PM NEAR AND EAST
OF THE INTERSTATE 55 CORRIDOR. THERE IS A NON-ZERO BUT VERY LOW
(LESS THAN 5 PERCENT) CHANCE FOR SEVERE WEATHER.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY.
FRIDAY...
LIMITED THUNDERSTORM RISK NEAR LAKE MICHIGAN.
FRIDAY NIGHT INTO SATURDAY MORNING...
SIGNIFICANT FROST AND LIMITED FREEZE RISK MAINLY IN ILLINOIS.
SATURDAY NIGHT INTO FRIDAY MORNING...
LIMITED FROST RISK MAINLY EAST OF INTERSTATE 55.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE EAST AT 55 MPH.
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-
329 AM CDT THU OCT 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.
WEATHER HAZARDS EXPECTED...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
DAYS TWO THROUGH SEVEN
FRIDAY THROUGH WEDNESDAY.
FRIDAY...
GALE FORCE WINDS AND VERY HAZARDOUS WAVES ARE EXPECTED.
LIMITED THUNDERSTORM RISK.
SATURDAY AND SUNDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
BORCHARDT
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