000
FZUS63 KMKX 210746
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
246 AM CDT WED OCT 21 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 OVER SOUTHERN QUEBEC WILL SLOWLY
DRIFT EAST THROUGH TODAY. PATCHY DENSE FOG MAY OCCUR FOR LOCATIONS
CLOSER TO THE WESTERN SHORELINE OF LAKE MICHIGAN THIS MORNING.
ANOTHER HIGH PRESSURE SYSTEM AROUND 30.4 INCHES WILL MOVE IN FROM
THE NORTHERN PLAINS LATER IN THE WEEK. WINDS WILL REMAIN LIGHT TO
MODEST THROUGH THE WEEK.
INCREASING SOUTHEAST WINDS FRIDAY INTO FRIDAY NIGHT MAY BECOME
BREEZY SOUTH WINDS ON SATURDAY INTO SATURDAY NIGHT, AS LOW
PRESSURE MOVES FROM THE NORTHERN PLAINS INTO HUDSON BAY. A COLD
FRONT SHOULD MOVE SOUTHEAST THROUGH THE REGION SUNDAY INTO MONDAY,
SHIFTING WINDS TO THE NORTH AND NORTHEAST BEHIND IT.
LMZ261-362-364-366-563-565-567-868-211530-
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-
246 AM CDT WED OCT 21 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TODAY
SOUTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
TONIGHT
SOUTHWEST WINDS 5 TO 10 KT VEERING TO NORTH. WAVES
1 TO 2 FT.
THURSDAY
NORTHEAST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 FT OR LESS.
THURSDAY NIGHT
EAST WINDS 5 TO 10 KT BECOMING SOUTHEAST. WAVES
1 TO 2 FT.
FRIDAY
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
FRIDAY NIGHT
SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 2 TO 4 FT.
SATURDAY
SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT OCCASIONALLY
TO 9 FT.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO
20 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO
4 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-211530-
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-
246 AM CDT WED OCT 21 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TODAY
SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT. WAVES
1 TO 2 FT.
TONIGHT
SOUTH WINDS 5 TO 10 KT VEERING TO WEST. WAVES 1 TO
2 FT.
THURSDAY
NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH. WAVES 1 FT
OR LESS.
THURSDAY NIGHT
NORTHEAST WINDS 5 TO 10 KT BECOMING SOUTHEAST
10 TO 15 KT. WAVES 1 FT OR LESS BUILDING TO 1 TO 3 FT.
FRIDAY
SOUTHEAST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
FRIDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO
20 KT. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT.
SATURDAY
SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT OCCASIONALLY
TO 9 FT.
SUNDAY
SOUTHWEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
LMZ761-211530-
MAFOR 2110/
MICHIGAN NORTH 11510 13520 11510 11500 11700 11800. WAVES 2 FEET
OR LESS.
MICHIGAN SOUTH 11400 12510 11410 12400 11500 11600. WAVES 1 FOOT
OR LESS.
KUROSKI
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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