802
FZUS63 KMKX 251955
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
255 PM CDT WED MAR 25 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
SOUTHWESTERLY WINDS WILL CONTINUE THROUGH THIS EVENING, SLOWLY
DIMINISHING TO LIGHT AND VARIABLE TONIGHT UNDER A BRIEF WAVE OF
WEAK LOW PRESSURE. LOW PRESSURE OF 29.5 INCHES DEVELOPING IN THE
CENTRAL PLAINS THURSDAY WILL BRING A WIND SHIFT OF NORTHERLY AS
STRONG HIGH PRESSURE OF 30.7 INCHES BUILDS OVER THE CANADIAN
PRAIRIES. INCREASING PRESSURE GRADIENT IS EXPECTED TO BRING GALES
TO THE SOUTHERN TWO THIRDS OF THE OPEN WATERS THURSDAY AFTERNOON
THROUGH THURSDAY NIGHT. WINDS WILL GRADUALLY DIMINISH INTO FRIDAY,
AS HIGH PRESSURE BUILDS INTO THE NORTHERN PLAINS AND UPPER
MISSISSIPPI VALLEY. LIGHT AND VARIABLE WINDS ARE EXPECTED INTO
SATURDAY AS HIGH PRESSURE MOVES EAST THROUGH THE OHIO VALLEY.
WINDS RETURN TO SOUTHERLY AS HIGH PRESSURE EXITS SUNDAY, WITH
SOUTHERLY WINDS CONTINUING THROUGH MONDAY.
LMZ261-362-364-563-260315-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
255 PM CDT WED MAR 25 2026
STURGEON BAY WI TO POINT BETSIE MI NORTH...
TONIGHT
SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO 20 KT
LATE THIS EVENING, THEN BECOMING NORTH 10 TO 15 KT OVERNIGHT.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT.
THURSDAY
NORTH WINDS 5 TO 10 KT INCREASING TO 10 TO 20 KT.
RAIN SHOWERS AND SLIGHT CHANCE OF LIGHT FREEZING RAIN IN THE
MORNING, THEN CHANCE OF RAIN AND SNOW SHOWERS IN THE AFTERNOON.
PATCHY FOG IN THE AFTERNOON. WAVES 1 TO 3 FT BUILDING TO 3 TO
5 FT.
THURSDAY NIGHT
NORTH WINDS TO 30 KT BECOMING NORTHEAST 15 TO
25 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.
FRIDAY
NORTH WINDS 10 TO 20 KT BACKING TO NORTHWEST 10 TO
15 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 1 TO
3 FT.
FRIDAY NIGHT
NORTHWEST WINDS 10 TO 15 KT BECOMING WEST 10 TO
20 KT. CHANCE OF SNOW IN THE EVENING. WAVES 1 TO 3 FT.
SATURDAY
WEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 2 TO 4 FT.
SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SUNDAY
SOUTH WINDS 15 TO 25 KT. WAVES 6 TO 9 FT OCCASIONALLY
TO 12 FT.
MONDAY
NORTHWEST WINDS 15 TO 25 KT BECOMING NORTH 10 TO 20 KT.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT.
LMZ366-565-567-868-260315-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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-
255 PM CDT WED MAR 25 2026
STURGEON BAY WI TO POINT BETSIE MI SOUTH TO SHEBOYGAN WI TO
PENTWATER MI...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...
TONIGHT
SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST LATE THIS
EVENING, THEN BECOMING NORTHWEST 10 TO 15 KT AFTER MIDNIGHT
BECOMING NORTH LATE. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 3 TO 5 FT.
THURSDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 15 TO
25 KT. CHANCE OF RAIN SHOWERS. WAVES 1 TO 3 FT BUILDING TO 3 TO
5 FT.
THURSDAY NIGHT
NORTH GALES TO 35 KT DIMINISHING TO 30 KT.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT BUILDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT.
FRIDAY
NORTH WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO 20 KT.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 3 TO 5 FT.
FRIDAY NIGHT
WEST WINDS 10 TO 15 KT BECOMING NORTHWEST. WAVES
1 TO 3 FT.
SATURDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST.
WAVES 3 TO 5 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY
SOUTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT.
MONDAY
NORTHWEST WINDS 15 TO 25 KT BECOMING NORTHEAST 10 TO
20 KT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO
7 FT OCCASIONALLY TO 9 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-260315-
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-
255 PM CDT WED MAR 25 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...
TONIGHT
SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST 10 TO
15 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO
4 FT.
THURSDAY
SOUTH WINDS 5 TO 10 KT VEERING TO NORTH 10 TO 15 KT
LATE IN THE MORNING, THEN INCREASING TO 10 TO 20 KT EARLY IN THE
AFTERNOON INCREASING TO 30 KT LATE. PATCHY FOG IN THE AFTERNOON.
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
THURSDAY NIGHT
NORTH GALES TO 35 KT. RAIN SHOWERS WITH A
CHANCE OF RAIN IN THE EVENING. WAVES 6 TO 9 FT OCCASIONALLY TO
12 FT BUILDING TO 8 TO 12 FT OCCASIONALLY TO 16 FT.
FRIDAY
NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT IN THE
AFTERNOON. WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT SUBSIDING TO
5 TO 8 FT OCCASIONALLY TO 10 FT.
FRIDAY NIGHT
NORTHWEST WINDS 10 TO 15 KT. WAVES 3 TO 5 FT
SUBSIDING TO 2 TO 4 FT.
SATURDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT
BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY
SOUTH WINDS 15 TO 25 KT. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT.
MONDAY
WEST WINDS 15 TO 25 KT VEERING TO NORTH 10 TO 20 KT.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
LMZ761-260315-
MAFOR 2522/
MICHIGAN NORTH 12530 11720 12810 11110 11817 11830. WAVES 3 TO 6
FEET SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET THURSDAY.
MICHIGAN SOUTH 11430 11530 11520 11510 11400 11810 11820 11836.
WAVES 3 TO 6 FEET SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 1 TO 3
FEET BUILDING TO 3 TO 5 FEET THURSDAY.
MH
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MKX/GLFTABLE
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page