630
FZUS53 KLOT 211501
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
901 AM CST SAT FEB 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>742-212230-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
901 AM CST SAT FEB 21 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...
REST OF TODAY
NORTHWEST WINDS 10 TO 15 KT. A CHANCE OF
FLURRIES IN THE AFTERNOON. WAVES 1 TO 2 FT.
TONIGHT
NORTHWEST WINDS 15 TO 20 KT INCREASING TO 20 TO 25 KT.
CHANCE OF SNOW. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT.
SUNDAY
NORTHWEST WINDS 20 TO 25 KT INCREASING TO 30 KT. CHANCE
OF SNOW IN THE MORNING, THEN SLIGHT CHANCE OF SNOW IN THE
AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY NIGHT
NORTHWEST WINDS TO 30 KT. CHANCE OF SNOW. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT BUILDING TO 7 TO 10 FT
OCCASIONALLY TO 13 FT.
WAVE HEIGHTS ARE FOR ICE FREE AREAS.
LMZ743-212230-
CALUMET HARBOR IL TO GARY IN-
901 AM CST SAT FEB 21 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...
REST OF TODAY
WEST WINDS 10 TO 15 KT. A CHANCE OF FLURRIES IN
THE AFTERNOON. WAVES 1 TO 2 FT.
TONIGHT
NORTHWEST WINDS 15 TO 20 KT INCREASING TO 20 TO 25 KT
LATE. CHANCE OF SNOW IN THE EVENING, THEN SNOW LIKELY OVERNIGHT.
WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT.
SUNDAY
NORTHWEST WINDS 20 TO 25 KT INCREASING TO 30 KT IN THE
AFTERNOON. CHANCE OF SNOW. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
SUNDAY NIGHT
NORTHWEST WINDS TO 30 KT. CHANCE OF SNOW. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT BUILDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT.
WAVE HEIGHTS ARE FOR ICE FREE AREAS.
LMZ744-745-212230-
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-
901 AM CST SAT FEB 21 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SUNDAY MORNING...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
AFTERNOON...
REST OF TODAY
WEST WINDS 10 TO 15 KT. A CHANCE OF FLURRIES IN
THE AFTERNOON. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
TONIGHT
NORTHWEST WINDS 15 TO 20 KT INCREASING TO 20 TO 25 KT.
CHANCE OF SNOW IN THE EVENING, THEN SNOW LIKELY OVERNIGHT. WAVES
2 TO 4 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SUNDAY
NORTHWEST WINDS TO 30 KT INCREASING TO 35 KT GALES LATE.
CHANCE OF SNOW. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT BUILDING TO
7 TO 10 FT OCCASIONALLY TO 13 FT.
SUNDAY NIGHT
NORTHWEST GALES TO 35 KT. SNOW LIKELY. WAVES 8 TO
12 FT OCCASIONALLY TO 16 FT BUILDING TO 10 TO 14 FT OCCASIONALLY
TO 18 FT.
WAVE HEIGHTS ARE FOR ICE FREE AREAS.
CARLAW
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