615
FZUS63 KMKX 070938
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
338 AM CST FRI NOV 7 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
LOW PRESSURE AROUND 29.4 INCHES OVER LAKE SUPERIOR EARLY THIS
MORNING WILL DEEPEN SLIGHTLY AS IT MOVES TO SOUTHWEST QUEBEC BY
EARLY THIS EVENING. A GALE WARNING REMAINS IN EFFECT FOR THE OPEN
WATERS THROUGH EARLY THIS MORNING FOR SOUTHWEST GALES.
A COLD FRONT WILL CROSS THE LAKE JUST AFTER SUNRISE TODAY WITH
WINDS SHIFTING TO BRISK WESTERLY WINDS FOR THE REMAINDER OF THE
MORNING BUT BELOW GALES. ANOTHER COLD FRONT WILL THEN SHIFT WINDS
TO NORTHWESTERLY THIS AFTERNOON THEN NORTHERLY TONIGHT, BUT WITH
DIMINISHING WINDS AS WEAK HIGH PRESSURE BUILDS INTO NORTHERN
WISCONSIN.
ANOTHER LOW PRESSURE AREA WILL THEN DEVELOP AND TRACK FROM
ILLINOIS ACROSS THE NORTHERN OHIO VALLEY SATURDAY NIGHT AND THE
MID ATLANTIC STATES ON SUNDAY. NORTH TO NORTHWEST GALES MAY
DEVELOP LATER SATURDAY NIGHT INTO SUNDAY ACROSS THE SOUTHERN HALF
OF THE OPEN WATERS. NORTHWEST TO NORTH WINDS REMAIN GUSTY INTO
MONDAY, WITH SOME GALES POSSIBLE.
LMZ261-362-364-366-563-565-567-868-071630-
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-
338 AM CST FRI NOV 7 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
..GALE WARNING IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING
TODAY
SOUTHWEST WINDS TO 30 KT VEERING TO NORTHWEST. GALE FORCE
GUSTS EXPECTED EARLY THIS MORNING. SLIGHT CHANCE OF RAIN. WAVES 8
TO 11 FT OCCASIONALLY TO 14 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
TONIGHT
NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 15 KT.
SLIGHT CHANCE OF RAIN IN THE EVENING. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT.
SATURDAY
NORTH WINDS 5 TO 10 KT. WAVES 2 TO 4 FT SUBSIDING TO
1 TO 2 FT.
SATURDAY NIGHT
NORTH WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. RAIN AND SNOW LIKELY. WAVES 1 TO 3 FT BUILDING TO 5 TO
8 FT OCCASIONALLY TO 10 FT.
SUNDAY
NORTH WINDS TO 30 KT. SNOW LIKELY. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT BUILDING TO 8 TO 11 FT OCCASIONALLY TO
14 FT.
SUNDAY NIGHT
NORTH WINDS TO 30 KT. SNOW LIKELY. WAVES 8 TO
12 FT OCCASIONALLY TO 16 FT.
MONDAY
NORTH WINDS TO 30 KT BECOMING NORTHWEST. CHANCE OF
SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 6 TO
9 FT OCCASIONALLY TO 12 FT.
TUESDAY
SOUTHWEST WINDS TO 30 KT. CHANCE OF RAIN AND SNOW.
WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT BUILDING TO 8 TO 12 FT
OCCASIONALLY TO 16 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-071630-
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-
338 AM CST FRI NOV 7 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
..GALE WARNING IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING
TODAY
SOUTHWEST WINDS TO 30 KT BECOMING NORTHWEST. SLIGHT
CHANCE OF RAIN THIS AFTERNOON. WAVES 8 TO 11 FT OCCASIONALLY TO
14 FT SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 12 FT.
TONIGHT
NORTHWEST WINDS 15 TO 25 KT BECOMING NORTH LATE IN THE
EVENING, THEN DIMINISHING TO 10 TO 20 KT AFTER MIDNIGHT BECOMING
NORTHEAST 10 TO 15 KT LATE. SLIGHT CHANCE OF RAIN. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO
8 FT.
SATURDAY
NORTHEAST WINDS 10 TO 15 KT. CHANCE OF RAIN IN THE
AFTERNOON. WAVES 3 TO 5 FT SUBSIDING TO 2 TO 4 FT.
SATURDAY NIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING NORTH TO
30 KT OVERNIGHT. RAIN IN THE EVENING, THEN RAIN LIKELY OVERNIGHT.
WAVES 3 TO 5 FT BUILDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
SUNDAY
NORTH WINDS TO 30 KT BECOMING NORTHWEST GALES TO 35 KT.
RAIN AND SNOW LIKELY IN THE MORNING, THEN SNOW LIKELY IN THE
AFTERNOON. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT.
SUNDAY NIGHT
NORTHWEST GALES TO 35 KT BECOMING NORTH. SNOW
LIKELY. WAVES 12 TO 16 FT OCCASIONALLY TO 21 FT.
MONDAY
NORTHWEST WINDS TO 30 KT. CHANCE OF SNOW. WAVES 10 TO
14 FT OCCASIONALLY TO 18 FT SUBSIDING TO 8 TO 12 FT OCCASIONALLY
TO 16 FT.
TUESDAY
SOUTHWEST GALES TO 35 KT. CHANCE OF RAIN AND SNOW.
WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT BUILDING TO 10 TO 14 FT
OCCASIONALLY TO 18 FT.
LMZ761-071630-
MAFOR 0711/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11540 11640 12740 11840
12830 11810. A CHANCE OF RAIN EARLY THIS MORNING. WAVES 7 TO 11
FEET SUBSIDING TO 3 TO 6 FEET TODAY. WAVES 3 TO 6 FEET TONIGHT.
MICHIGAN SOUTH...GALE WARNING IN EFFECT...11540 13640 11730 11830
11820 11810. A CHANCE OF RAIN EARLY THIS MORNING. WAVES 7 TO 11
FEET SUBSIDING TO 5 TO 8 FEET TODAY. WAVES 3 TO 6 FEET TONIGHT.
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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