803
FZUS63 KMKX 261430
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
830 AM 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
HIGH PRESSURE OF 30.0 INCHES OVER THE UPPER GREAT LAKES WILL
DEPART TODAY AS A WEAK CLIPPER OF 29.7 INCHES TRACKS TOWARD LAKE
SUPERIOR. SOUTH TO SOUTHWEST WINDS WILL INCREASE LATER THIS
AFTERNOON INTO FRIDAY AS LOW PRESSURE OF 29.3 INCHES OVER
SASKATCHEWAN DEEPENS TO 29.0 INCHES OVER ONTARIO. THE ASSOCIATED
COLD FRONT WILL CROSS LAKE MICHIGAN FRIDAY AFTERNOON AND EVENING.
A FEW GALES WILL BE POSSIBLE ACROSS NORTHERN PORTIONS OF THE LAKE
LATER FRIDAY INTO FRIDAY NIGHT BEHIND THE FRONT. BREEZY NORTHERLY
WINDS WILL CONTINUE SATURDAY BETWEEN DEPARTING LOW PRESSURE AND A
STRONG HIGH APPROACHING FROM THE NORTHWEST.
LMZ261-362-364-366-563-565-567-868-262215-
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-
830 AM CST THU FEB 26 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
REST OF TODAY
SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 15 TO
25 KT. CHANCE OF SNOW. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT.
TONIGHT
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. CHANCE OF SNOW IN THE EVENING. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.
FRIDAY
SOUTHWEST WINDS 15 TO 25 KT INCREASING TO 30 KT. WAVES
3 TO 5 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
FRIDAY NIGHT
WEST GALES TO 35 KT BECOMING NORTHWEST. 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
NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH.
WAVES 3 TO 5 FT.
SUNDAY
NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
WAVES 3 TO 5 FT SUBSIDING TO 1 TO 3 FT.
MONDAY
SOUTH WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-262215-
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-
830 AM CST THU FEB 26 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TODAY
SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
TONIGHT
SOUTHWEST WINDS 10 TO 20 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. 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. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
SUNDAY
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
MONDAY
EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST. WAVES 3 TO
5 FT.
LMZ761-262215-
MAFOR 2617/
MICHIGAN NORTH 11520 12530 11520 11620 11510 11520 11540. A
CHANCE OF SNOW LATE THIS MORNING AND THIS EVENING. WAVES 2 FEET
OR LESS BUILDING TO 3 TO 5 FEET THIS AFTERNOON. WAVES 3 TO 5 FEET
SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 2 TO 4 FEET BUILDING TO 3
TO 5 FEET FRIDAY MORNING.
MICHIGAN SOUTH 14520 11520 11510 11520 11530. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET THIS AFTERNOON. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 2 TO 4 FEET BUILDING TO 3
TO 5 FEET FRIDAY MORNING.
DDV
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