265
FZUS63 KMKX 171416
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
916 AM CDT THU SEP 17 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
30.4 INCH HIGH PRESSURE WILL CONTINUE EAST THROUGH THE DAY INTO
QUEBEC. PROGRESSION OF THE HIGH WILL MAINTAIN EAST-NORTHEAST
WINDS ACROSS THE OPEN WATERS THROUGH THE AFTERNOON. OCCASIONAL
PERIODS OF SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE
LAKE, BUT NO SEVERE WEATHER IS EXPECTED.
A SECOND AREA OF 30.4 INCH HIGH PRESSURE WILL SHIFT FROM THE
CANADIAN GREAT PLAINS INTO ONTARIO TONIGHT INTO FRIDAY MORNING,
MAINTAINING EAST-NORTHEAST WINDS ACROSS LAKE MICHIGAN. 29.9 INCH
LOW PRESSURE WILL DEVELOP NEAR THE MISSOURI RIVER FRIDAY
AFTERNOON, MOVING OVER OR JUST SOUTH OF WATERS DURING THE DAY ON
SATURDAY. WINDS WILL VEER EAST-SOUTHEASTERLY AND INCREASE AS THE
LOW APPROACHES. SOME GUSTS COULD APPROACH GALE THRESHOLDS,
PARTICULARLY FRIDAY NIGHT INTO SATURDAY MORNING. WHETHER
BORDERLINE GALES WILL BE WIDESPREAD ENOUGH TO WARRANT GALE
WARNINGS REMAINS UNCERTAIN AT THIS TIME. WIDESPREAD SHOWERS AND
STORMS WILL ACCOMPANY THE APPROACHING/PASSING AREA OF LOW PRESSURE
FRIDAY NIGHT THROUGH AT LEAST SATURDAY NIGHT, WITH WIDESPREAD
SEVERE WEATHER NOT EXPECTED. WINDS WILL SHIFT NORTHEASTERLY AS
THE LOW SLOWLY MOVES INTO THE OHIO RIVER VALLEY SUNDAY INTO THE
BEGINNING OF NEXT WEEK.
LMZ261-362-364-366-563-565-567-868-172130-
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-
916 AM CDT THU SEP 17 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
REST OF TODAY
NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH. WAVES
1 TO 2 FT.
TONIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST. WAVES 1 TO
3 FT.
FRIDAY
NORTHEAST WINDS 10 TO 20 KT BECOMING EAST 10 TO 15 KT.
WAVES 2 TO 4 FT.
FRIDAY NIGHT
EAST WINDS 15 TO 25 KT BECOMING SOUTHEAST TO
30 KT. CHANCE OF SHOWERS. WAVES 3 TO 5 FT BUILDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SATURDAY
SOUTHEAST WINDS TO 30 KT BECOMING EAST. SHOWERS IN
THE MORNING, THEN CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 8 TO
11 FT OCCASIONALLY TO 14 FT.
SATURDAY NIGHT
EAST WINDS 15 TO 25 KT BECOMING NORTHEAST.
CHANCE OF SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SUNDAY
NORTHEAST WINDS TO 30 KT. WAVES 5 TO 8 FT OCCASIONALLY
TO 10 FT.
MONDAY
EAST WINDS 15 TO 25 KT. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-172130-
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-
916 AM CDT THU SEP 17 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TODAY
NORTHEAST WINDS 10 TO 15 KT. SLIGHT CHANCE OF
SHOWERS LATE THIS MORNING. WAVES 1 TO 2 FT.
TONIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST. WAVES 2 TO
4 FT.
FRIDAY
EAST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
FRIDAY NIGHT
EAST WINDS 15 TO 25 KT BECOMING SOUTHEAST TO
30 KT. CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS OVERNIGHT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SATURDAY
SOUTHEAST WINDS TO 30 KT. SHOWERS. WAVES 8 TO 12 FT
OCCASIONALLY TO 16 FT.
SATURDAY NIGHT
EAST WINDS 15 TO 25 KT BECOMING NORTHEAST.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS. WAVES 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SUNDAY
NORTHEAST WINDS TO 30 KT INCREASING TO GALES TO 35 KT.
CHANCE OF SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
BUILDING TO 8 TO 11 FT OCCASIONALLY TO 14 FT.
MONDAY
EAST WINDS TO 30 KT BECOMING NORTHEAST GALES TO 35 KT.
CHANCE OF SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
BUILDING TO 8 TO 11 FT OCCASIONALLY TO 14 FT.
LMZ761-172130-
MAFOR 1716/
MICHIGAN NORTH 11800 13810 14110. WAVES 2 FEET OR LESS THIS
AFTERNOON AND TONIGHT. WAVES 1 TO 3 FEET FRIDAY MORNING.
MICHIGAN SOUTH 12110 11810 13110 11120 11220. WAVES 2 FEET OR
LESS THIS AFTERNOON. WAVES 1 TO 3 FEET TONIGHT. WAVES 2 TO 4 FEET
FRIDAY MORNING.
KUROSKI
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MKX/GLFTABLE
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page