689
FZUS53 KLOT 181901 AAA
NSHLOT
NEARSHORE MARINE FORECAST...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
201 PM CDT SAT APR 18 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>742-190330-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
201 PM CDT SAT APR 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
LATE THIS AFTERNOON
WEST WINDS TO 30 KT. PARTLY CLOUDY. WAVES
2 TO 4 FT.
TONIGHT
WEST WINDS 20 TO 25 KT BECOMING SOUTHWEST AND
DIMINISHING TO AROUND 15 KT. MOSTLY CLEAR. WAVES 2 TO 4 FT
SUBSIDING TO 1 TO 2 FT.
SUNDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTHWEST 15 TO
25 KT. SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE OF
SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FT.
SUNDAY NIGHT
NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST
OVERNIGHT. PARTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 TO
3 FT.
MONDAY
EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. MOSTLY
SUNNY. WAVES 1 TO 3 FT.
LMZ743>745-190330-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
201 PM CDT SAT APR 18 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
LATE THIS AFTERNOON
WEST WINDS 20 TO 25 KT. PARTLY CLOUDY.
WAVES 3 TO 5 FT.
TONIGHT
WEST WINDS 20 TO 25 KT DIMINISHING TO 15 TO 20 KT.
PARTLY CLOUDY IN THE EVENING, THEN BECOMING CLEAR. WAVES 2 TO
4 FT SUBSIDING TO 1 TO 3 FT.
SUNDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING NORTH 15 TO 25 KT.
SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS
IN THE AFTERNOON. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT.
SUNDAY NIGHT
NORTH WINDS 10 TO 15 KT BECOMING NORTHEAST
OVERNIGHT. PARTLY CLOUDY IN THE EVENING THEN CLEARING. WAVES 1 TO
3 FT.
MONDAY
EAST WINDS AROUND 10 KT. SUNNY. WAVES 1 TO 2 FT.
KMD
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