571
FZUS63 KMKX 241402
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
902 AM CDT TUE MAR 24 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
HIGH PRESSURE AROUND 30.5 INCHES WILL CONTINUE IN THE OHIO VALLEY
AS LOW PRESSURE AROUND 29.9 INCHES IN JAMES BAY MOVES INTO
NORTHERN QUEBEC. EXPECT BREEZY SOUTHWESTERLY WINDS INTO THIS
AFTERNOON. AN FEW GALE FORCE GUSTS MAY OCCUR THROUGH NOON CDT FOR
THE NORTHERN HALF OF THE LAKE. WINDS WILL EASE DURING THE
AFTERNOON AS A COLD FRONT APPROACHES THE NORTHERN END OF THE LAKE
AND STALLS LATE THIS AFTERNOON INTO THIS EVENING.
SOUTH WINDS WILL REMAIN DOMINANT THROUGH WEDNESDAY INTO THURSDAY
MORNING AS BROAD LOW PRESSURE AROUND 29.8 INCHES APPROACHES FROM
THE WEST. THE NEXT CHANCE FOR GALES WILL COME THURSDAY EVENING AS
A LOW PRESSURE SYSTEM AROUND 29.6 INCHES WORKS SOUTHEAST THROUGH
THE MIDDLE MISSISSIPPI VALLEY AND A COLD FRONT PLUNGES SOUTHWARD
DOWN THE LAKE. EXPECT NORTHEASTERLY WINDS. WINDS WILL SHIFT
NORTHERLY AND DIMINISH THROUGH FRIDAY AFTERNOON, BECOMING WESTERLY
AS HIGH PRESSURE APPROACHES FROM THE NORTHERN PLAINS ON SATURDAY.
LMZ261-362-364-366-563-565-567-868-242130-
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-
902 AM CDT TUE MAR 24 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
REST OF TODAY
SOUTHWEST WINDS TO 30 KT AND ISOLATED GALES TO
35 KT, THEN DIMINISHING TO 10 TO 20 KT LATE. CHANCE OF SNOW
THROUGH MID MORNING. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
TONIGHT
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST. WAVES 2 TO
4 FT SUBSIDING TO 1 TO 3 FT.
WEDNESDAY
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KT. WAVES 2 TO 4 FT.
THURSDAY
WEST WINDS 10 TO 20 KT VEERING TO NORTH 15 TO 25 KT.
CHANCE OF RAIN IN THE MORNING, THEN CHANCE OF RAIN AND SNOW IN
THE AFTERNOON. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT.
THURSDAY NIGHT
NORTH WINDS TO 30 KT. WAVES 8 TO 11 FT
OCCASIONALLY TO 14 FT.
FRIDAY
NORTH WINDS TO 30 KT BECOMING NORTHWEST 10 TO 20 KT.
WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
SATURDAY
WEST WINDS 15 TO 25 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-242130-
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-
902 AM CDT TUE MAR 24 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TODAY
SOUTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES 3 TO 5 FT.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH. WAVES 2 TO
4 FT SUBSIDING TO 1 TO 3 FT.
WEDNESDAY
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST.
WAVES 2 TO 4 FT.
THURSDAY
SOUTHWEST WINDS 10 TO 15 KT VEERING TO NORTHWEST
10 TO 20 KT. CHANCE OF RAIN IN THE AFTERNOON. WAVES 2 TO 4 FT
BUILDING TO 3 TO 5 FT.
THURSDAY NIGHT
NORTH GALES TO 35 KT. CHANCE OF RAIN. WAVES
8 TO 11 FT OCCASIONALLY TO 14 FT BUILDING TO 10 TO 14 FT
OCCASIONALLY TO 18 FT.
FRIDAY
NORTH WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT. WAVES
8 TO 12 FT OCCASIONALLY TO 16 FT SUBSIDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SATURDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.
LMZ761-242130-
MAFOR 2416/
MICHIGAN NORTH 11540 11520 11410 13310 12420. A CHANCE OF SNOW
LATE THIS MORNING. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 5 FEET
THIS AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET
TONIGHT. WAVES 1 TO 3 FEET WEDNESDAY MORNING.
MICHIGAN SOUTH 11430 11420 13310 12410 11420. WAVES 2 TO 4 FEET
THIS AFTERNOON. WAVES 1 TO 3 FEET TONIGHT AND WEDNESDAY MORNING.
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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