561
FZUS53 KLOT 130249
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
949 PM CDT TUE MAY 12 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>742-130930-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
949 PM CDT TUE MAY 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
REST OF TONIGHT
WEST WINDS 20 TO 25 KT BECOMING NORTHWEST
LATE. PARTLY CLOUDY LATE IN THE EVENING THEN CLEARING. WAVES 2 TO
4 FT.
WEDNESDAY
NORTHWEST WINDS 20 TO 25 KT BECOMING NORTHEAST 15 TO
20 KT. MOSTLY CLOUDY. WAVES 2 TO 4 FT.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST.
DECREASING CLOUD COVER. WAVES 1 TO 3 FT.
THURSDAY
NORTH WINDS AROUND 10 KT BECOMING EAST IN THE
AFTERNOON. SUNNY. WAVES 1 TO 2 FT.
LMZ743>745-130930-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
949 PM CDT TUE MAY 12 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
REST OF TONIGHT
SOUTHWEST WINDS 20 TO 25 KT BECOMING
NORTHWEST. MOSTLY CLOUDY LATE IN THE EVENING THEN CLEARING. WAVES
2 TO 4 FT BUILDING TO 3 TO 5 FT TOWARD MORNING.
WEDNESDAY
NORTHWEST WINDS 20 TO 25 KT BECOMING NORTH 15 TO
20 KT. MOSTLY CLOUDY. WAVES 3 TO 5 FT.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST AND
DIMINISHING TO AROUND 10 KT. DECREASING CLOUDS. WAVES 3 TO 5 FT
SUBSIDING TO 2 TO 4 FT.
THURSDAY
NORTH WINDS AROUND 10 KT. SUNNY. WAVES 1 TO 3 FT.
RATZER
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