905
FZUS63 KMKX 280839
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
239 AM CST FRI NOV 28 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
WINDS WILL GRADUALLY DIMINISH TODAY AS HIGH PRESSURE BEGINS TO
MOVE INTO THE AREA. AS THAT HIGH MOVES ACROSS THE LAKE TONIGHT, LIGHT
AND VARIABLE WINDS ARE EXPECTED.
LOW PRESSURE OF 29.8 INCHES WILL THEN TRACK FROM EASTERN KANSAS
SATURDAY MORNING TO THE SOUTHERN TIP OF LAKE MICHIGAN SATURDAY
NIGHT, AND THEN REACH LAKE HURON BY MID SUNDAY WHILE DEEPENING TO
29.7 INCHES. WIDESPREAD, MODERATE TO HEAVY SNOW WILL OVERSPREAD
THE SOUTH HALF OF LAKE MICHIGAN. BRISK SOUTHEAST WINDS SATURDAY
WILL BECOME EASTERLY AND THEN WESTERLY AS THE LOW CROSSES THE
GREAT LAKES REGION. A PERIOD OF WEST GALES WILL BE POSSIBLE AS THE
LOW DEPARTS THE REGION ON SUNDAY.
LMZ261-362-364-366-563-565-567-868-281615-
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-
239 AM CST FRI NOV 28 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
TODAY
NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
CHANCE OF SNOW AND SLIGHT CHANCE OF LIGHT FREEZING RAIN. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
TONIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 5 TO 10 KT.
WAVES 3 TO 5 FT SUBSIDING TO 1 TO 3 FT.
SATURDAY
WEST WINDS 5 TO 10 KT BECOMING SOUTH 10 TO 20 KT LATE
IN THE MORNING, THEN BECOMING SOUTHEAST 15 TO 25 KT IN THE
AFTERNOON. CHANCE OF SNOW IN THE MORNING, THEN SNOW IN THE
AFTERNOON. WAVES 1 TO 2 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO
10 FT.
SATURDAY NIGHT
SOUTHEAST WINDS TO 30 KT BECOMING EAST 15 TO
25 KT. SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
SUNDAY
NORTH WINDS TO 30 KT BECOMING NORTHWEST GALES TO 35 KT.
SNOW IN THE MORNING, THEN CHANCE OF SNOW IN THE AFTERNOON. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT BUILDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT.
SUNDAY NIGHT
NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. CHANCE OF SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
MONDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO 25 KT.
WAVES 2 TO 4 FT.
TUESDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO 25 KT.
WAVES 2 TO 4 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-281615-
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-
239 AM CST FRI NOV 28 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TODAY
NORTHWEST WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT.
WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT SUBSIDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
TONIGHT
NORTHWEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. CHANCE
OF SNOW OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING
TO 1 TO 2 FT.
SATURDAY
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST TO 30 KT.
SNOW. WAVES 1 TO 3 FT BUILDING TO 7 TO 10 FT OCCASIONALLY TO
13 FT.
SATURDAY NIGHT
SOUTHEAST WINDS TO 30 KT BECOMING EAST 15 TO
25 KT. SNOW IN THE EVENING, THEN RAIN AND SNOW OVERNIGHT. WAVES
8 TO 11 FT OCCASIONALLY TO 14 FT SUBSIDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SUNDAY
NORTHWEST GALES TO 35 KT. SNOW IN THE MORNING, THEN
CHANCE OF SNOW IN THE AFTERNOON. WAVES 8 TO 12 FT OCCASIONALLY TO
16 FT BUILDING TO 12 TO 16 FT OCCASIONALLY TO 21 FT.
SUNDAY NIGHT
NORTHWEST WINDS TO 30 KT DIMINISHING TO 10 TO
20 KT. CHANCE OF SNOW. WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT
SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 12 FT.
MONDAY
WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO 20 KT.
CHANCE OF SNOW. WAVES 3 TO 5 FT SUBSIDING TO 2 TO 4 FT.
TUESDAY
WEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
LMZ761-281615-
MAFOR 2811/
MICHIGAN NORTH 12740 13730 11720 11710 11600. A CHANCE OF SNOW
TODAY. WAVES 5 TO 9 FEET SUBSIDING TO 3 TO 5 FEET TODAY. WAVES 3
TO 5 FEET SUBSIDING TO 1 TO 3 FEET TONIGHT.
MICHIGAN SOUTH 11740 12730 11720 11710 11700 11600 11500. A
CHANCE OF SNOW OVERNIGHT. WAVES 7 TO 11 FEET SUBSIDING TO 5 TO 8
FEET TODAY. WAVES 3 TO 5 FEET SUBSIDING TO 1 TO 3 FEET TONIGHT.
BOXELL
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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