142
FZUS63 KMKX 011945
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
245 PM CDT FRI MAY 1 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
WINDS WILL GENERALLY REMAIN LIGHT AND VARIABLE TO NORTHERLY
TONIGHT INTO THE FIRST HALF OF TOMORROW AS HIGH PRESSURE OF 30.2
INCHES SINKS SOUTHEAST OVER LAKE MICHIGAN. WINDS ARE THEN
EXPECTED TO BECOME LIGHT AND VARIABLE FOR A TIME AGAIN SATURDAY
AFTERNOON BEFORE TURNING SOUTHERLY SATURDAY NIGHT. WINDS THEN GROW
BREEZY SATURDAY NIGHT INTO SUNDAY AS LOW PRESSURE OF 29.6 INCHES
APPROACHES THE LAKE, DRAGGING A COLD FRONT OVER IT. WINDS WILL
ONLY BECOME WESTERLY BEHIND THE FRONT FOR A TIME, RETURNING TO
SOUTHWESTERLY ON MONDAY AHEAD OF ANOTHER STRONGER LOW OF 29.4
INCHES.
LMZ261-362-364-366-563-565-567-868-020315-
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-
245 PM CDT FRI MAY 1 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TONIGHT
NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH 5 TO 10 KT.
WAVES 1 TO 3 FT.
SATURDAY
NORTHWEST WINDS 5 TO 10 KT BECOMING WEST LATE IN THE
MORNING, THEN BECOMING SOUTHWEST 10 TO 15 KT EARLY IN THE
AFTERNOON INCREASING TO 10 TO 20 KT LATE. WAVES 1 TO 3 FT.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST
15 TO 25 KT. SCATTERED RAIN SHOWERS OVERNIGHT. WAVES 2 TO 4 FT
BUILDING TO 3 TO 5 FT.
SUNDAY
SOUTHWEST WINDS 15 TO 25 KT. SCATTERED RAIN SHOWERS.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
SUNDAY NIGHT
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO
5 FT.
MONDAY
SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST TO 30 KT.
WAVES 3 TO 5 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
MONDAY NIGHT
NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. CHANCE OF RAIN SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT SUBSIDING TO 3 TO 5 FT.
TUESDAY
WEST WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
WEDNESDAY
NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST 10 TO
20 KT. WAVES 1 TO 2 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-020315-
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-
245 PM CDT FRI MAY 1 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TONIGHT
NORTH WINDS 10 TO 20 KT DIMINISHING TO 5 TO 10 KT.
SLIGHT CHANCE OF LIGHT SLEET WITH ISOLATED RAIN SHOWERS THIS
EVENING. WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.
SATURDAY
NORTH WINDS 5 TO 10 KT BACKING TO SOUTH 10 TO 15 KT.
WAVES 1 TO 2 FT.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST
15 TO 25 KT. WAVES 3 TO 5 FT.
SUNDAY
SOUTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
SCATTERED RAIN SHOWERS IN THE AFTERNOON. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
SUNDAY NIGHT
SOUTHWEST WINDS 15 TO 25 KT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT.
MONDAY
SOUTHWEST WINDS 15 TO 25 KT. WAVES 2 TO 4 FT BUILDING
TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
MONDAY NIGHT
WEST WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO
20 KT. CHANCE OF RAIN SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT.
TUESDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
RAIN SHOWERS. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
WEDNESDAY
NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH 10 TO
20 KT. WAVES 1 TO 2 FT.
LMZ761-020315-
MAFOR 0122/
MICHIGAN NORTH 12710 11810 11800 12700 12510. WAVES 2 FEET OR
LESS TONIGHT. WAVES 1 TO 3 FEET SATURDAY.
MICHIGAN SOUTH 11820 11810 14800 11810 11410. WAVES 1 TO 3 FEET
SUBSIDING TO 1 FOOT OR LESS TONIGHT. WAVES 1 FOOT OR LESS
SATURDAY.
CMILLER
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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