358
FZUS63 KMKX 270312
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
912 PM CST THU FEB 26 2026
FOR WATERS BEYOND 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 WAVE, ALONG WITH THE
AVERAGE HEIGHT OF THE HIGHEST 10% OF THE WAVES WHICH WILL
OCCASIONALLY BE ENCOUNTERED.
SYNOPSIS
LIGHT SOUTHWEST WINDS CONTINUE TONIGHT AS HIGH PRESSURE OF 30.1
INCHES LINGERS OVER THE NORTHEAST U.S. SOUTHWEST WINDS WILL
INCREASE ON FRIDAY AHEAD OF AN APPROACHING COLD FRONT. WINDS WILL
BECOME WEST TO NORTHWEST FRIDAY EVENING AND OVERNIGHT BEHIND THE
COLD FRONT. A FEW GUSTS TO GALE FORCE ARE EXPECTED IN THE NORTHERN
THIRD FRIDAY AFTERNOON AND EVENING, BUT NOT EXPECTING THESE GUSTS
TO BE CONSISTENT ENOUGH TO WARRANT HEADLINES (GALE WATCH/WARNING).
BREEZY NORTHERLY WINDS ARE THEN EXPECTED TO LINGER THROUGH THE
WEEKEND AS HIGH PRESSURE OF 30.7 INCHES BUILDS INTO THE UPPER
MIDWEST.
LMZ261-362-364-366-563-565-567-868-271030-
LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE
MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH
FOX ISLAND 5 NM OFFSHORE-
LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI-
LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
912 PM CST THU FEB 26 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
REST OF TONIGHT
SOUTHWEST WINDS 10 TO 20 KT DIMINISHING TO
10 TO 15 KT. WAVES 3 TO 5 FT SUBSIDING TO 2 TO 4 FT.
FRIDAY
SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 30 KT WITH
OCCASIONAL GALES TO 35 KT. WAVES 2 TO 4 FT BUILDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
FRIDAY NIGHT
WEST WINDS TO 30 KT WITH OCCASIONAL GALES TO 35 KT
BECOMING NORTHWEST TO 30 KT WITH OCCASIONAL GALES TO 35 KT.
FREEZING SPRAY OVERNIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT.
SATURDAY
NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO
5 FT.
SATURDAY NIGHT
NORTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
SUNDAY
NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 5 TO 10 KT
IN THE AFTERNOON. WAVES 3 TO 5 FT SUBSIDING TO 1 TO 3 FT.
SUNDAY NIGHT
WEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
MONDAY
SOUTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT BUILDING
TO 3 TO 5 FT.
TUESDAY
SOUTHWEST WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT.
WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-271030-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE
TO MID LAKE-
LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO
MID LAKE-
LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID
LAKE-
LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO
MID LAKE-
912 PM CST THU FEB 26 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TONIGHT
SOUTHWEST WINDS 10 TO 20 KT DIMINISHING TO
10 TO 15 KT. WAVES 2 TO 4 FT.
FRIDAY
SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 30 KT. WAVES
2 TO 4 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
FRIDAY NIGHT
WEST WINDS TO 30 KT BECOMING NORTHWEST 15 TO 25
KT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
SATURDAY
NORTH WINDS 10 TO 20 KT. CHANCE OF SNOW IN THE
AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO
6 FT OCCASIONALLY TO 8 FT.
SATURDAY NIGHT
NORTH WINDS 10 TO 20 KT. CHANCE OF SNOW IN THE
EVENING. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
SUNDAY
NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
SUNDAY NIGHT
NORTHEAST WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.
MONDAY
EAST WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES 2 TO
4 FT.
TUESDAY
SOUTH WINDS 10 TO 20 KT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
LMZ761-271030-
MAFOR 2705/
MICHIGAN NORTH 11610 11510 11520 11540 12550 11650 11640. WAVES 2
TO 4 FEET SUBSIDING TO 1 TO 3 FEET OVERNIGHT. WAVES 1 TO 3 FEET
BUILDING TO 5 TO 8 FEET FRIDAY. WAVES 5 TO 8 FEET FRIDAY EVENING.
MICHIGAN SOUTH 12510 11520 11530 13540 11640. WAVES 1 TO 3 FEET
OVERNIGHT. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET FRIDAY.
WAVES 4 TO 7 FEET FRIDAY EVENING.
MH
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MKX/GLFTABLE
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
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