153
FZUS63 KMKX 290218
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
918 PM CDT TUE JUL 28 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
WINDS WILL DIMINISH TONIGHT INTO WEDNESDAY AS HIGH PRESSURE
AROUND 30.0 INCHES BUILDING INTO THE GREAT LAKES REGION FROM
ONTARIO. LIGHT SOUTHWEST WIND WILL DEVELOP THURSDAY THROUGH FRIDAY
AS THE HIGH PRESSURE MOVES EAST TOWARD THE MID ATLANTIC STATES.
LMZ261-362-364-366-563-565-567-868-290915-
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-
918 PM CDT TUE JUL 28 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
REST OF TONIGHT
NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
WEDNESDAY
NORTH WINDS 5 TO 10 KT BACKING TO SOUTHWEST. WAVES
1 TO 2 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KT DIMINISHING TO
5 TO 10 KT. WAVES 1 TO 2 FT.
THURSDAY
SOUTH WINDS 10 TO 15 KT. WAVES 1 FT OR LESS BUILDING
TO 1 TO 2 FT.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST 5 TO
10 KT. WAVES 1 TO 2 FT.
FRIDAY
SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 2 FT.
FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KT VEERING TO NORTHEAST.
CHANCE OF SHOWERS. WAVES 1 TO 2 FT.
SATURDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO
20 KT. WAVES 1 TO 3 FT.
SUNDAY
NORTHEAST WINDS 10 TO 20 KT INCREASING TO 30 KT. WAVES
3 TO 5 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-290915-
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-
918 PM CDT TUE JUL 28 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TONIGHT
NORTH WINDS TO 30 KT DIMINISHING TO 10 TO
15 KT. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 3 TO
5 FT.
WEDNESDAY
NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST 10 TO
20 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST
5 TO 10 KT. WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.
THURSDAY
WEST WINDS 5 TO 10 KT BECOMING SOUTH. WAVES 1 TO
2 FT.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST.
WAVES 1 TO 2 FT.
FRIDAY
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHEAST. CHANCE OF
SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FT.
FRIDAY NIGHT
EAST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
SHOWERS LIKELY. WAVES 1 TO 3 FT.
SATURDAY
EAST WINDS 10 TO 20 KT BECOMING NORTHEAST 15 TO
25 KT. CHANCE OF SHOWERS. WAVES 2 TO 4 FT.
SUNDAY
NORTHEAST WINDS 15 TO 25 KT BECOMING NORTH TO 30 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
LMZ761-290915-
MAFOR 2904/
MICHIGAN NORTH 11820 11810 12800 11710 12510 11500. WAVES 2 FEET
OR LESS.
MICHIGAN SOUTH 11130 11120 12810 13820 11810. WAVES 4 TO 7 FEET
SUBSIDING TO 3 TO 6 FEET OVERNIGHT. WAVES 1 TO 3 FEET WEDNESDAY
AND WEDNESDAY EVENING.
CMILLER
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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