919
FLUS43 KLOT 160923
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
423 AM CDT FRI MAY 16 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-170930-
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-
423 AM CDT FRI MAY 16 2025 /523 AM EDT FRI MAY 16 2025/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED...
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 DAMAGING WIND RISK...TO 75 MPH.
LEVEL 2 OF 5 LARGE HAIL RISK...TO GOLF BALL SIZE.
LEVEL 1 OF 5 TORNADO RISK.
ELEVATED NON THUNDERSTORM WIND RISK.
SIGNIFICANT FIRE WEATHER RISK.
DISCUSSION...
SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE LATE THIS AFTERNOON
INTO EARLY THIS EVENING, MAINLY FOR AREAS ALONG AND EAST OF
INTERSTATE 55. THE MAIN SEVERE WEATHER THREATS ARE LARGE HAIL AND
DAMAGING WINDS.
NON THUNDERSTORM WINDS MAY GUST AS HIGH AS 40 TO 45 MPH THIS
AFTERNOON.
THESE STRONG WINDS COMBINED WITH VERY DRY AIR WILL CREATE A
CRITICAL FIRE DANGER WITH THE POTENTIAL FOR WILDFIRES AND RAPID
FIRE SPREAD THIS AFTERNOON.
DAYS TWO THROUGH SEVEN
SATURDAY THROUGH THURSDAY.
MONDAY...
LIMITED THUNDERSTORM RISK.
SPOTTER INFORMATION STATEMENT
SPOTTERS MAY BE NEEDED LATE THIS AFTERNOON INTO THIS EVENING.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE NORTHEAST AROUND 50 MPH.
LMZ740>745-170930-
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-
423 AM CDT FRI MAY 16 2025
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...
GALE FORCE WINDS AND VERY HAZARDOUS WAVES.
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 1 OF 5 THUNDERSTORM WIND GUST RISK...TO 50 KNOTS.
LEVEL 1 OF 5 HAIL RISK...UP TO QUARTER SIZE.
DAYS TWO THROUGH SEVEN
SATURDAY THROUGH THURSDAY.
SATURDAY THROUGH THURSDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
MONDAY...
LIMITED THUNDERSTORM RISK.
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