134
FZUS63 KMKX 161949
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
249 PM CDT TUE SEP 16 2025
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
THE BACK EDGE OF THE HIGH PRESSURE CENTERED OVER QUEBEC WILL
MEANDER AROUND AND JUST EAST OF LAKE MICHIGAN THROUGH WEDNESDAY.
EXPECT LIGHT SOUTHEASTERLY WINDS UNDER THIS PATTERN AS A LOW
PRESSURE AROUND 29.7 INCHES CONTINUES TO SLOWLY LIFT INTO THE
HUDSON BAY REGION THROUGH TODAY. GIVEN THE WARM PATTERN AND
LIGHTER WINDS, CANNOT RULE OUT A FEW AREAS OF FOG EACH NIGHT
THROUGH MIDWEEK. WINDS ARE THEN EXPECTED TO INCREASE A BIT AND
SHIFT MORE EASTERLY FOR THE SECOND HALF OF THE WEEK AS ANOTHER
AREA OF LOW PRESSURE DEVELOPS ACROSS THE CENTRAL PLAINS. WILL SEE
A MIX OF EAST TO NORTHEASTERLY WINDS LATER THURSDAY INTO FRIDAY
WITH A WARM FRONT STRETCHED ACROSS THE LAKE AS A THE LOW PRESSURE
IS PROGGED TO LIFT NORTHWARD INTO THE UPPER MIDWEST. WILL SEE
STRONGER WINDS UP TO AROUND 25 KT INTO THE WEEKEND.
LMZ261-362-364-366-563-565-567-868-170315-
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-
249 PM CDT TUE SEP 16 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
TONIGHT
SOUTH WINDS 5 TO 10 KT. PATCHY DENSE FOG THIS EVENING,
THEN PATCHY FOG OVERNIGHT. WAVES 1 FT OR LESS.
WEDNESDAY
SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO
15 KT. WAVES 1 TO 2 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KT VEERING TO
NORTHEAST. WAVES 1 FT OR LESS.
THURSDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH. WAVES
1 TO 2 FT.
THURSDAY NIGHT
NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
FRIDAY
EAST WINDS 10 TO 20 KT BECOMING NORTHEAST. WAVES 1 TO
3 FT.
FRIDAY NIGHT
EAST WINDS 10 TO 20 KT BECOMING SOUTHEAST. WAVES
1 TO 3 FT BUILDING TO 3 TO 5 FT.
SATURDAY
SOUTHEAST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES 2 TO
4 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-170315-
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-
249 PM CDT TUE SEP 16 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TONIGHT
NORTH WINDS 10 TO 15 KT VEERING TO EAST. PATCHY DENSE
FOG. WAVES 1 FT OR LESS.
WEDNESDAY
SOUTHEAST WINDS LESS THAN 10 KT BACKING TO NORTH.
WAVES 1 FT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KT VEERING TO
SOUTHWEST. WAVES 1 FT OR LESS.
THURSDAY
EAST WINDS 5 TO 10 KT BACKING TO NORTH. WAVES 1 TO
2 FT.
THURSDAY NIGHT
NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
FRIDAY
EAST WINDS 10 TO 15 KT BECOMING NORTHEAST. WAVES 1 TO
3 FT.
FRIDAY NIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING SOUTHEAST
15 TO 25 KT. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT OCCASIONALLY
TO 8 FT.
SATURDAY
SOUTHEAST WINDS 10 TO 20 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS. WAVES 2 TO
4 FT.
LMZ761-170315-
MAFOR 1622/
MICHIGAN NORTH 11400 11300 19304 11400 19404 12400 13510. WAVES 1
FOOT OR LESS.
MICHIGAN SOUTH 11810 11100 19104 12200 19204 13300 11700. WAVES 1
FOOT OR LESS.
WAGNER
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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