680
FLUS43 KLOT 132002
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
302 PM CDT TUE MAY 13 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-142015-
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-
302 PM CDT TUE MAY 13 2025 /402 PM EDT TUE MAY 13 2025/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
DAY ONE
TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED THUNDERSTORM RISK THROUGH EARLY EVENING.
SIGNIFICANT FOG RISK, PARTICULARLY NEAR LAKE MICHIGAN.
DISCUSSION...
ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WILL
CONTINUE TO BE POSSIBLE INTO THIS EVENING, WITH THE GREATEST
COVERAGE EXPECTED IN NORTHWEST INDIANA. POSSIBLE HAZARDS INCLUDE
LIGHTNING, LOCALIZED DOWNPOURS, AND GUSTY WINDS.
DENSE FOG IS EXPECTED TO DEVELOP INLAND OFF OF SOUTHERN LAKE
MICHIGAN THIS EVENING AND CONTINUE INTO WEDNESDAY MORNING. THE
HIGHEST THREAT FOR DENSE FOG WILL BE ACROSS PARTS OF NORTHEASTERN
ILLINOIS AND FAR NORTHWESTERN INDIANA OVERNIGHT.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY...
LIMITED THUNDERSTORM RISK.
ELEVATED MORNING FOG RISK.
THURSDAY...
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 SEVERE THUNDERSTORM RISK.
FRIDAY...
LIMITED THUNDERSTORM RISK.
SIGNIFICANT FIRE WEATHER RISK.
DISCUSSION...
ISOLATED TO SCATTERED THUNDERSTORMS MAY DEVELOP AHEAD OF A COLD
FRONT LATE THURSDAY AFTERNOON. IF THUNDERSTORMS DEVELOP, SOME
WILL LIKELY BECOME SEVERE WITH DAMAGING HAIL BEING THE GREATEST
THREAT.
ON FRIDAY, STRONG WEST-SOUTHWEST WINDS AND VERY WARM AND DRY
CONDITIONS WILL RESULT IN AN ELEVATED TO POTENTIALLY SIGNIFICANT
FIRE DANGER.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
GENERAL STORM MOTION OF THE DAY:
MOVING TOWARD THE NORTHWEST AT 10 TO 20 MPH.
LMZ740>745-142015-
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-
302 PM CDT TUE MAY 13 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
TONIGHT.
WEATHER HAZARDS EXPECTED...
LIMITED EARLY EVENING THUNDERSTORM RISK.
SIGNIFICANT FOG RISK.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY.
WEDNESDAY...
LIMITED THUNDERSTORM RISK.
SIGNIFICANT FOG RISK.
THURSDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:
LEVEL 2 OF 5 SEVERE THUNDERSTORM RISK.
FRIDAY AND SATURDAY...
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.
KJB
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