421
FZUS53 KLOT 200229
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
929 PM CDT THU MAR 19 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>742-200915-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
929 PM CDT THU MAR 19 2026
REST OF TONIGHT
EAST WINDS 5 TO 10 KT BECOMING SOUTHWEST LATE.
PARTLY CLOUDY LATE IN THE EVENING, THEN BECOMING MOSTLY CLOUDY.
WAVES 1 TO 2 FT.
FRIDAY
WEST WINDS 10 TO 15 KT BECOMING NORTHEAST IN THE
AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 2 FT.
FRIDAY NIGHT
NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST AROUND
5 KT OVERNIGHT. MOSTLY CLOUDY. WAVES 1 TO 2 FT.
SATURDAY
SOUTHEAST WINDS AROUND 10 KT BECOMING SOUTH IN THE
AFTERNOON. PARTLY CLOUDY. WAVES 1 TO 2 FT.
LMZ743>745-200915-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
929 PM CDT THU MAR 19 2026
REST OF TONIGHT
SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTHWEST
15 TO 20 KT LATE. PARTLY CLOUDY LATE IN THE EVENING, THEN
BECOMING MOSTLY CLOUDY. WAVES 1 TO 2 FT.
FRIDAY
SOUTHWEST WINDS 15 TO 20 KT BECOMING NORTH IN THE
AFTERNOON. MOSTLY CLOUDY. WAVES 1 TO 3 FT.
FRIDAY NIGHT
NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST.
MOSTLY CLOUDY. WAVES 1 TO 2 FT.
SATURDAY
SOUTHEAST WINDS AROUND 10 KT BECOMING SOUTH IN THE
AFTERNOON. PARTLY CLOUDY IN THE MORNING THEN CLEARING. WAVES 1 TO
2 FT.
YACK
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page