508
FZUS53 KLOT 040843
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
343 AM CDT TUE AUG 4 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>742-041515-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
343 AM CDT TUE AUG 4 2026
TODAY
SOUTH WINDS 10 TO 15 KT. PARTLY CLOUDY. WAVES 1 TO 2 FT.
TONIGHT
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST OVERNIGHT.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO
2 FT.
WEDNESDAY
SOUTHWEST WINDS AROUND 10 KT BECOMING NORTHWEST
TOWARD EVENING. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. WAVES
AROUND 1 FT.
WEDNESDAY NIGHT
NORTH WINDS AROUND 10 KT. SHOWERS AND A CHANCE
OF THUNDERSTORMS. WAVES AROUND 1 FT.
LMZ743>745-041515-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
343 AM CDT TUE AUG 4 2026
TODAY
SOUTH WINDS AROUND 10 KT. MOSTLY SUNNY IN THE MORNING,
THEN BECOMING PARTLY CLOUDY. WAVES AROUND 1 FT.
TONIGHT
SOUTH WINDS AROUND 10 KT. PARTLY CLOUDY IN THE
EVENING, THEN BECOMING MOSTLY CLOUDY. WAVES AROUND 1 FT.
WEDNESDAY
SOUTHWEST WINDS AROUND 10 KT. CHANCE OF SHOWERS IN
THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES AROUND 1 FT.
WEDNESDAY NIGHT
WEST WINDS AROUND 10 KT BECOMING SOUTHWEST
OVERNIGHT. SHOWERS AND A CHANCE OF THUNDERSTORMS. WAVES AROUND 1
FT.
KJB
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