837
FZUS63 KMKX 261932
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
232 PM CDT THU MAR 26 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
HIGH PRESSURE OF 30.7 INCHES WILL PRESS FROM THE CANADIAN
PRAIRIES SOUTHWARD INTO THE NORTHERN PLAINS TONIGHT INTO FRIDAY
MORNING AS LOW PRESSURE OF 29.5 INCHES IN ILLINOIS SLIDES
EASTWARD. THIS WILL BRING GUSTY NORTH WINDS TO LAKE MICHIGAN.
EXPECTING WIDESPREAD GALES OF 35 TO 40 KT ACROSS THE SOUTHERN
TWO-THIRDS OF THE LAKE, WITH A FEW ISOLATED GALES TO 35 KT
POSSIBLE ACROSS THE NORTHERN THIRD. WINDS WILL GRADUALLY DIMINISH
LATE TONIGHT INTO FRIDAY MORNING AS HIGH PRESSURE BUILDS INTO THE
NORTHERN PLAINS AND WESTERN PORTIONS OF THE UPPER MIDWEST. HIGH
PRESSURE WILL CONTINUE TO SLIDE SOUTHEASTWARD ON FRIDAY, WITH
NORTHWESTERLY WINDS DEVELOPING AS IT PASSES TO THE SOUTH FRIDAY
NIGHT. WINDS WILL GRADUALLY BACK TO SOUTHERLY INTO SATURDAY
AFTERNOON AS LOW PRESSURE AROUND 29.7 INCHES DEVELOPS IN THE LEE
OF THE COLORADO ROCKIES. WINDS THEN REMAIN SOUTH-SOUTHWESTERLY
THROUGH MONDAY AS RIDGING BUILDS ACROSS THE SOUTHEAST U.S.
LMZ261-362-364-563-270315-
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-
232 PM CDT THU MAR 26 2026
STURGEON BAY WI TO POINT BETSIE MI NORTH...
TONIGHT
NORTH WINDS TO 30 KT BECOMING NORTHEAST 15 TO 25 KT.
FREEZING SPRAY THIS EVENING. WAVES 6 TO 9 FT OCCASIONALLY TO
12 FT.
FRIDAY
NORTHEAST WINDS 10 TO 20 KT BACKING TO WEST 10 TO
15 KT. CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES 3 TO 5 FT
SUBSIDING TO 1 TO 3 FT.
FRIDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 TO 5 FT.
SATURDAY
WEST WINDS 15 TO 25 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT. WAVES 4 TO 6 FT OCCASIONALLY
TO 8 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST 10 TO
15 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
MONDAY
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
TUESDAY
EAST WINDS 15 TO 25 KT. CHANCE OF RAIN AND SNOW. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
LMZ366-565-567-868-270315-
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 PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID
LAKE-
232 PM CDT THU MAR 26 2026
STURGEON BAY WI TO POINT BETSIE MI SOUTH TO SHEBOYGAN WI TO
PENTWATER MI...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
TONIGHT
NORTH GALES TO 35 KT DIMINISHING TO 30 KT. WAVES 7 TO
10 FT OCCASIONALLY TO 13 FT BUILDING TO 8 TO 12 FT OCCASIONALLY
TO 16 FT, THEN SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO 13 FT.
FRIDAY
NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT.
SLIGHT CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 1 TO 3 FT.
FRIDAY NIGHT
NORTHWEST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. CHANCE OF SNOW SHOWERS. WAVES 1 TO 2 FT BUILDING TO 3 TO
5 FT.
SATURDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT.
MONDAY
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST. WAVES 4 TO
7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO
8 FT.
TUESDAY
EAST WINDS 15 TO 25 KT. CHANCE OF RAIN. WAVES 6 TO
9 FT OCCASIONALLY TO 12 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-270315-
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-
232 PM CDT THU MAR 26 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
TONIGHT
NORTH GALES TO 40 KT DIMINISHING TO GALES TO 35 KT.
CHANCE OF RAIN SHOWERS THIS EVENING. WAVES 8 TO 12 FT
OCCASIONALLY TO 16 FT BUILDING TO 12 TO 16 FT OCCASIONALLY TO
21 FT.
FRIDAY
NORTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT. SLIGHT
CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES 8 TO 11 FT
OCCASIONALLY TO 14 FT SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO
8 FT.
FRIDAY NIGHT
NORTH WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 3 TO 5 FT.
SATURDAY
NORTHWEST WINDS 10 TO 20 KT BACKING TO SOUTHWEST.
WAVES 3 TO 5 FT.
SATURDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
SUNDAY
SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
SUNDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT.
MONDAY
SOUTHWEST WINDS 10 TO 20 KT VEERING TO NORTH. WAVES
4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
TUESDAY
SOUTHEAST WINDS 15 TO 25 KT BECOMING SOUTH. RAIN
LIKELY. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT.
LMZ761-270315-
MAFOR 2622/
MICHIGAN NORTH...GALE WARNING IN EFFECT...13850 11140 11130 11820
12710. A CHANCE OF RAIN AND SNOW SHOWERS EARLY THIS EVENING.
WAVES 3 TO 6 FEET BUILDING TO 8 TO 12 FEET, THEN SUBSIDING TO 6
TO 9 FEET TONIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 1 TO 3 FEET
FRIDAY.
MICHIGAN SOUTH...GALE WARNING IN EFFECT...11856 13850 11840
13820. WAVES 3 TO 6 FEET BUILDING TO 10 TO 15 FEET TONIGHT. WAVES
8 TO 11 FEET SUBSIDING TO 3 TO 5 FEET FRIDAY.
MH
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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