418
FZUS63 KMKX 271459
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
859 AM CST THU NOV 27 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 OF 29.4 INCHES OVER WESTERN QUEBEC WILL SLOWLY MOVE
EASTWARD THROUGH FRIDAY WITH SOME WEAKENING. OCCASIONAL GALE FORCE
GUSTS WILL CONTINUE TODAY INTO TONIGHT OVER LAKE MICHIGAN,
ESPECIALLY ON THE EASTERN AND NORTHERN ENDS OF THE LAKE. A RIDGE
OF HIGH PRESSURE WILL THEN MOVE ACROSS THE LAKE FRIDAY NIGHT WITH
LIGHT AND VARIABLE WINDS 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. GALES ARE NOT ANTICIPATED AT THIS TIME,
ALTHOUGH A PERIOD OF GUSTY NORTHWEST WINDS IS EXPECTED SUNDAY.
LMZ261-362-364-563-272215-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
859 AM CST THU NOV 27 2025
STURGEON BAY WI TO POINT BETSIE MI NORTH...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
NORTHWEST GALES TO 35 TO 40 KT. SNOW SHOWERS
THROUGH MID MORNING, THEN SNOW SHOWERS LIKELY THIS AFTERNOON.
WAVES 10 TO 14 FT OCCASIONALLY TO 18 FT SUBSIDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT.
TONIGHT
NORTHWEST GALES 35 TO 40 KT. SNOW SHOWERS LIKELY IN
THE EVENING, THEN CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 8 TO 12
FT OCCASIONALLY TO 16 FT SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO
13 FT.
FRIDAY
NORTHWEST WINDS TO 30 KT. SNOW SHOWERS LIKELY IN THE
MORNING, THEN CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES 6 TO
9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO
8 FT.
FRIDAY NIGHT
NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. CHANCE OF SNOW IN THE EVENING. WAVES 3 TO 5 FT SUBSIDING
TO 1 TO 3 FT.
SATURDAY
WEST WINDS 10 TO 15 KT BACKING TO SOUTHEAST. SNOW
LIKELY IN THE AFTERNOON. WAVES 1 TO 2 FT.
SATURDAY NIGHT
SOUTHEAST WINDS 10 TO 20 KT BECOMING EAST.
SNOW. WAVES 3 TO 5 FT.
SUNDAY
NORTH WINDS TO 30 KT BECOMING NORTHWEST. SNOW. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT OCCASIONALLY
TO 9 FT.
MONDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. CHANCE OF
SNOW. WAVES 2 TO 4 FT.
LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-272215-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 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 PENTWATER TO MANISTEE MI 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-
859 AM CST THU NOV 27 2025
STURGEON BAY WI TO POINT BETSIE MI SOUTH...
..GALE WARNING IN EFFECT THROUGH THIS EVENING
REST OF TODAY
NORTHWEST GALES TO 35 KT. CHANCE OF SNOW
SHOWERS. WAVES 14 TO 18 FT OCCASIONALLY TO 23 FT.
TONIGHT
NORTHWEST GALES TO 35 KT DIMINISHING TO 30 KT. CHANCE
OF SNOW SHOWERS. WAVES 14 TO 18 FT OCCASIONALLY TO 23 FT.
FRIDAY
NORTHWEST WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT.
CHANCE OF RAIN SHOWERS IN THE MORNING. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO
13 FT.
FRIDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 5 TO
10 KT OVERNIGHT. CHANCE OF SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO
8 FT SUBSIDING TO 2 TO 4 FT.
SATURDAY
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST 15 TO
25 KT. SNOW LIKELY IN THE MORNING, THEN SNOW IN THE AFTERNOON.
WAVES 2 TO 4 FT BUILDING TO 6 TO 9 FT OCCASIONALLY TO 12 FT.
SATURDAY NIGHT
SOUTHEAST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
SUNDAY
NORTH GALES TO 35 KT BECOMING NORTHWEST. SNOW. WAVES
12 TO 16 FT OCCASIONALLY TO 21 FT.
MONDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT.
LMZ761-272215-
MAFOR 2717/
MICHIGAN NORTH...GALE WARNING IN EFFECT...13757 11767 13750
11740. WAVES 9 TO 13 FEET THIS AFTERNOON. WAVES 9 TO 13 FEET
SUBSIDING TO 8 TO 11 FEET TONIGHT. WAVES 6 TO 10 FEET FRIDAY
MORNING.
MICHIGAN SOUTH...GALE WARNING IN EFFECT...12750 12757 11750
13740. A CHANCE OF RAIN SHOWERS FRIDAY MORNING. WAVES 11 TO 16
FEET THIS AFTERNOON. WAVES 12 TO 17 FEET SUBSIDING TO 11 TO 15
FEET TONIGHT. WAVES 10 TO 14 FEET FRIDAY MORNING.
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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