230
FZUS53 KLOT 211445
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
945 AM CDT SUN JUN 21 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>742-212115-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
945 AM CDT SUN JUN 21 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON
THROUGH LATE MONDAY NIGHT...
REST OF TODAY
SOUTHEAST WINDS AROUND 10 KT BECOMING EAST AND
INCREASING TO 20 TO 25 KT LATE IN THE AFTERNOON. SHOWERS IN THE
AFTERNOON. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT LATE.
TONIGHT
EAST WINDS TO 30 KT BECOMING NORTHEAST AND DIMINISHING
TO 20 TO 25 KT. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SHOWERS LIKELY OVERNIGHT. WAVES 3 TO 5 FT BUILDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
MONDAY
NORTH WINDS 20 TO 25 KT. SLIGHT CHANCE OF SHOWERS IN
THE MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
MONDAY NIGHT
NORTH WINDS 10 TO 20 KT. MOSTLY CLEAR. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT.
LMZ743>745-212115-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
945 AM CDT SUN JUN 21 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM CDT THIS AFTERNOON
THROUGH LATE MONDAY NIGHT...
REST OF TODAY
SOUTHEAST WINDS AROUND 10 KT BECOMING EAST AND
INCREASING TO 20 TO 25 KT LATE IN THE AFTERNOON. SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WAVES 1 FT OR
LESS BUILDING TO 2 TO 4 FT.
TONIGHT
EAST WINDS TO 30 KT BECOMING NORTHEAST OVERNIGHT.
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN
SHOWERS OVERNIGHT. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT BUILDING
TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
MONDAY
NORTHEAST WINDS 20 TO 25 KT BECOMING NORTH IN THE
AFTERNOON. SLIGHT CHANCE OF SHOWERS IN THE MORNING. WAVES 4 TO 6
FT OCCASIONALLY TO 8 FT.
MONDAY NIGHT
NORTH WINDS 10 TO 20 KT. PARTLY CLOUDY IN THE
EVENING, THEN BECOMING MOSTLY CLEAR. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT SUBSIDING TO 3 TO 5 FT.
YACK
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page