940
FZUS53 KLOT 241938
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
238 PM CDT TUE MAR 24 2026
FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN
WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS, WHICH
IS THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVES, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.
LMZ740>742-250400-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
238 PM CDT TUE MAR 24 2026
LATE THIS AFTERNOON
SOUTHEAST WINDS AROUND 10 KT. MOSTLY
CLOUDY. WAVES 1 TO 2 FT.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KT. PARTLY CLOUDY IN THE
EVENING, THEN BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FT.
WEDNESDAY
SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT IN
THE AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 3 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT. MOSTLY CLOUDY IN
THE EVENING, THEN BECOMING PARTLY CLOUDY. WAVES 1 TO 3 FT.
THURSDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTHWEST AND
INCREASING TO 20 TO 25 KT IN THE AFTERNOON. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT
BUILDING TO 2 TO 4 FT.
LMZ743>745-250400-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
238 PM CDT TUE MAR 24 2026
LATE THIS AFTERNOON
SOUTH WINDS AROUND 10 KT. MOSTLY CLOUDY.
WAVES AROUND 1 FT.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KT. PARTLY CLOUDY IN THE
EVENING, THEN BECOMING MOSTLY CLOUDY. WAVES AROUND 1 FT.
WEDNESDAY
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST AND
INCREASING TO 15 TO 25 KT IN THE AFTERNOON. MOSTLY CLOUDY. WAVES
1 TO 2 FT.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 20 KT. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 2 FT.
THURSDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTHWEST AND
INCREASING TO 20 TO 25 KT IN THE AFTERNOON. SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO 2 FT BUILDING
TO 2 TO 4 FT.
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