747
FZUS53 KLOT 211416
NSHLOT
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
916 AM CDT SAT MAR 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>742-212130-
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
916 AM CDT SAT MAR 21 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY AFTERNOON...
REST OF TODAY
SOUTHEAST WINDS AROUND 10 KT GRADUALLY VEERING
SOUTHWEST AND INCREASING TO 15 TO 25 KT THROUGH THE DAY. MOSTLY
CLOUDY IN THE MORNING THEN CLEARING. WAVES 1 TO 2 FT BUILDING TO 2
TO 4 FT.
TONIGHT
SOUTHWEST WINDS 15 TO 20 KT BECOMING NORTH AFTER
MIDNIGHT THEN BECOMING NORTHEAST 15 TO 25 KT LATE. PARTLY CLOUDY.
WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT BY DAYBREAK.
SUNDAY
NORTH WINDS TO 30 KT. A FEW GALE FORCE GUSTS TO 35 KT
IN THE AFTERNOON. PATCHY FOG. CHANCE OF RAIN. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT BUILDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
SUNDAY NIGHT
NORTH WINDS TO 30 KT WITH A FEW GALE FORCE GUSTS
TO 35 KT IN THE EVENING DIMINISHING TO 20 TO 25 KT AFTER
MIDNIGHT. MOSTLY CLOUDY. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
LMZ743>745-212130-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
916 AM CDT SAT MAR 21 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
MONDAY AFTERNOON...
REST OF TODAY
SOUTHEAST WINDS 10 KT GRADUALLY VEERING
SOUTHWEST AND INCREASING TO 15 TO 25 KT THROUGH THE DAY. MOSTLY
CLOUDY LATE IN THE MORNING THEN CLEARING. WAVES 1 TO 3 FT.
TONIGHT
SOUTHWEST WINDS 15 TO 20 KT BECOMING WEST 10 TO 15 KT
OVERNIGHT. MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. WAVES 1 TO 3 FT.
SUNDAY
NORTH WINDS 15 TO 25 KT INCREASING TO 30 KT DURING THE
MORNING. A FEW GALE FORCE GUSTS TO 35 KT POSSIBLE IN THE AFTERNOON.
PATCHY FOG. CHANCE OF RAIN. WAVES 3 TO 5 FT BUILDING TO 8 TO 11
FT OCCASIONALLY TO 14 FT.
SUNDAY NIGHT
NORTH WINDS TO 30 KT WITH A FEW GALE FORCE GUSTS
TO 35 KT IN THE EVENING DIMINISHING TO 20 TO 25 KT AFTER
MIDNIGHT. SLIGHT CHANCE OF RAIN IN THE EVENING. WAVES 8 TO 12 FT
OCCASIONALLY TO 16 FT SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO 13
FT.
KJB
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