434
FZUS53 KLOT 201440
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
940 AM CDT THU AUG 20 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>742-202115-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
940 AM CDT THU AUG 20 2026
REST OF TODAY
NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. SUNNY. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
TONIGHT
EAST WINDS AROUND 10 KT BECOMING SOUTH OVERNIGHT.
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY CLOUDY. WAVES
1 TO 3 FT SUBSIDING TO AROUND 1 FT.
FRIDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 1 TO
2 FT.
FRIDAY NIGHT
SOUTHWEST WINDS AROUND 10 KT BECOMING WEST
OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
WAVES 1 TO 2 FT.
LMZ743>745-202115-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
940 AM CDT THU AUG 20 2026
REST OF TODAY
NORTH WINDS 10 TO 15 KT. SUNNY. WAVES 2 TO 4 FT
SUBSIDING TO 1 TO 3 FT.
TONIGHT
NORTHEAST WINDS AROUND 10 KT BECOMING SOUTHEAST
OVERNIGHT. MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. WAVES 1 TO 3 FT.
FRIDAY
SOUTH WINDS AROUND 10 KT BECOMING SOUTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES AROUND 1 FT.
FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KT. CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 2 FT.
- IZZI
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page