322
FZUS63 KMKX 170157
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
857 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
HIGH PRESSURE AROUND 30.3 INCHES IN EASTERN QUEBEC WILL CONTINUE
EAST TODAY AS LOW PRESSURE AROUND 29.7 INCHES SLOWLY LIFTS
NORTHEAST INTO THE HUDSON BAY. WARM TEMPERATURES AND LIGHT WINDS
WILL PERSIST THROUGH MIDWEEK AND BRING A POTENTIAL FOR FOG EACH
NIGHT. 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 AROUND 29.9 INCHES DEVELOPS ACROSS THE CENTRAL PLAINS.
EAST TO NORTHEAST WINDS ARE EXPECTED LATE THURSDAY INTO FRIDAY AS
THE LOW IN THE CENTRAL PLAINS LIFTS NORTHWARD AND A WARM FRONT
STRETCHES ACROSS THE LAKE. AS THE LOW LIFTS INTO THE GREAT LAKES
REGION THIS WEEKEND, STRONGER WINDS UP TO AROUND 25 KT WILL BE
POSSIBLE.
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-
857 PM CDT TUE SEP 16 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
TODAY
SOUTH WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
SOUTH WINDS 5 TO 10 KT. PATCHY FOG OVERNIGHT. WAVES
1 FT OR LESS.
WEDNESDAY
SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES
1 TO 2 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KT VEERING TO NORTH.
WAVES 1 TO 2 FT.
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.
SATURDAY
SOUTHEAST WINDS 10 TO 20 KT. WAVES 3 TO 5 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-
857 PM CDT TUE SEP 16 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TODAY
SOUTHEAST WINDS 10 TO 15 KT BACKING TO NORTH. WAVES 1 TO
2 FT.
TONIGHT
NORTH WINDS 10 TO 15 KT VEERING TO EAST. PATCHY FOG
OVERNIGHT. WAVES 1 FT OR LESS.
WEDNESDAY
SOUTHEAST WINDS LESS THAN 10 KT VEERING TO
NORTHWEST. WAVES 1 FT OR LESS.
WEDNESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KT BECOMING SOUTH.
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.
SATURDAY
SOUTHEAST WINDS 10 TO 20 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT.
LMZ761-170315-
MAFOR 1610/
MICHIGAN NORTH 14400 11400 11300 12400. WAVES 1 FOOT OR LESS.
MICHIGAN SOUTH 11310 11300 11200 12810 11100 12200. WAVES 1 FOOT
OR LESS.
PATTERSON
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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