031
FZUS63 KMKX 091403
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
903 AM CDT THU JUL 9 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
LIGHT TO MODEST NORTH WINDS OVER THE NORTHERN HALF OF THE LAKE
WILL SLOWLY MOVE SOUTH TODAY, SHIFTING WINDS IN THE SOUTHERN HALF
OF THE LAKE FROM SOUTHERLY TO NORTHERLY. SOME FOG MAY DEVELOP AT
TIMES DURING THIS PERIOD, WITH PATCHY DENSE FOG POSSIBLE, AS
RELATIVELY WARM, MOIST AIR REMAINS OVER THE COOLER LAKE WATERS.
WINDS WILL REMAIN NORTH TO NORTHEAST ON FRIDAY, AS HIGH PRESSURE
AROUND 30.0 INCHES BUILDS INTO THE THE REGION FROM THE NORTH. THE
HIGH SHOULD SHIFT SOUTHEAST OVER THE WEEKEND, WHICH SHOULD
CONTINUE TO BRING LIGHT TO MODEST WINDS.
LMZ261-362-364-366-563-565-567-868-092130-
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-
903 AM CDT THU JUL 9 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
REST OF TODAY
NORTH WINDS 10 TO 15 KT. PATCHY FOG THROUGH MID
MORNING. SCATTERED SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
THROUGH MID MORNING, THEN SLIGHT CHANCE OF SHOWERS THIS AFTERNOON.
WAVES 1 TO 2 FT.
TONIGHT
NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT.
PATCHY FOG OVERNIGHT. WAVES 1 TO 2 FT.
FRIDAY
NORTH WINDS 5 TO 10 KT INCREASING TO 10 TO 20 KT.
PATCHY FOG IN THE MORNING. WAVES 1 TO 3 FT.
FRIDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING EAST 5 TO 10 KT
OVERNIGHT. WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.
SATURDAY
EAST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 20 KT
IN THE AFTERNOON. WAVES 1 FT OR LESS.
SATURDAY NIGHT
EAST WINDS 10 TO 15 KT VEERING TO SOUTH 5 TO
10 KT. WAVES 1 FT OR LESS.
SUNDAY
SOUTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 2 FT.
MONDAY
SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 2 TO 4 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-092130-
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-
903 AM CDT THU JUL 9 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TODAY
SOUTH TO SOUTHWEST WINDS 10 TO 15 KT SHIFTING
NORTH IN THE AFTERNOON. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. WAVES 1 TO 2 FT.
TONIGHT
NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. PATCHY
FOG. WAVES 1 TO 2 FT.
FRIDAY
NORTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
PATCHY FOG IN THE MORNING. WAVES 1 TO 3 FT BUILDING TO 2 TO 4 FT.
FRIDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST 10 TO
15 KT. WAVES 2 TO 4 FT.
SATURDAY
NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH 10 TO 20 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT.
SATURDAY NIGHT
NORTHEAST WINDS 10 TO 15 KT BECOMING EAST.
WAVES 1 TO 2 FT.
SUNDAY
SOUTHEAST WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 FT OR LESS.
MONDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO 20 KT.
WAVES 1 TO 2 FT.
LMZ761-092130-
MAFOR 0916/
MICHIGAN NORTH 11800 12810 14800 11810. WAVES 1 FOOT OR LESS.
MICHIGAN SOUTH 11510 19516 11510 11810 13800 12810. WAVES 2 FEET
OR LESS.
GEHRING
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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