979
FZUS63 KMKX 021400
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
900 AM CDT THU APR 2 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
NO MAJOR CHANGES TO THE GOING FORECAST THIS MORNING.
EASTERLY GALES OVER THE NORTHERN THIRD OF THE LAKE WILL CONTINUE
THROUGH THE DAY, WHILE THE SOUTHERN TWO THIRDS MAY SEE A LULL
DURING THE AFTERNOON AS THE WARM FRONT SLOWLY MOVES IN. THEN
SOUTHERLY GALES ARE EXPECTED OVER THE SOUTHERN TWO THIRDS DURING
THE EVENING HOURS. A GALE WARNING REMAINS IN EFFECT.
THUNDERSTORMS ARE ALSO EXPECTED OVER THE SOUTHERN TWO THIRDS OF
LAKE MICHIGAN THIS AFTERNOON AND EVENING. WINDS WILL ABRUPTLY
SHIFT TO THE WEST BEHIND THE COLD FRONT TONIGHT.
BEYOND, WINDS BECOME LIGHT AND VARIABLE FRIDAY LATE MORNING INTO
FRIDAY AFTERNOON BEFORE GUSTY NORTHEAST WINDS RETURN AHEAD OF A
LOW PRESSURE OF 29.7 INCHES ON SATURDAY.
LMZ261-362-364-563-022115-
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-
900 AM CDT THU APR 2 2026
STURGEON BAY WI TO POINT BETSIE MI NORTH...
..GALE WARNING IN EFFECT THROUGH THIS EVENING
REST OF TODAY
EAST WINDS TO 30 KT INCREASING TO GALES TO
45 KT. RAIN SHOWERS, SNOW SHOWERS, SLEET AND FREEZING RAIN
THROUGH MID MORNING, THEN RAIN SHOWERS, FREEZING RAIN AND SLIGHT
CHANCE OF THUNDERSTORMS THIS AFTERNOON. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT.
TONIGHT
EAST GALES TO 40 KT BECOMING SOUTHEAST GALES TO 35 KT
LATE IN THE EVENING, THEN VEERING TO SOUTHWEST TO 30 KT AFTER
MIDNIGHT BECOMING WEST LATE. RAIN SHOWERS WITH A CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS OVERNIGHT. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
FRIDAY
WEST WINDS TO 30 KT BECOMING NORTHWEST 15 TO 25 KT LATE
IN THE MORNING, THEN DIMINISHING TO 10 TO 20 KT EARLY IN THE
AFTERNOON BECOMING NORTH LATE. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT SUBSIDING TO 1 TO 3 FT.
FRIDAY NIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING EAST GALES
TO 35 KT OVERNIGHT. CHANCE OF RAIN SHOWERS IN THE EVENING, THEN
RAIN SHOWERS WITH FREEZING RAIN LIKELY OVERNIGHT. WAVES 2 TO 4 FT
BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
SATURDAY
EAST GALES TO 35 KT BECOMING SOUTH TO 30 KT. RAIN
SHOWERS AND FREEZING RAIN IN THE MORNING, THEN CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
SATURDAY NIGHT
SOUTHWEST WINDS TO 30 KT BECOMING WEST GALES TO
35 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT BUILDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.
SUNDAY
NORTHWEST GALES TO 35 KT DIMINISHING TO 30 KT. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
MONDAY
NORTHWEST WINDS 10 TO 20 KT. CHANCE OF SNOW SHOWERS.
WAVES 2 TO 4 FT.
LMZ366-565-567-868-022115-
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-
900 AM CDT THU APR 2 2026
STURGEON BAY WI TO POINT BETSIE MI SOUTH TO SHEBOYGAN WI TO
PENTWATER MI...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
EAST WINDS TO 30 KT BECOMING SOUTHEAST. RAIN
SHOWERS THROUGH MID MORNING, THEN RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS THIS AFTERNOON. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
TONIGHT
SOUTHEAST WINDS TO 30 KT VEERING TO WEST. RAIN SHOWERS
WITH A CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
THUNDERSTORMS AND SLIGHT CHANCE OF RAIN SHOWERS OVERNIGHT. WAVES
6 TO 9 FT OCCASIONALLY TO 12 FT.
FRIDAY
WEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT LATE
IN THE MORNING, THEN BECOMING NORTH 10 TO 15 KT EARLY IN THE
AFTERNOON BECOMING NORTHEAST LATE. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT SUBSIDING TO 1 TO 3 FT.
FRIDAY NIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING EAST 15 TO
25 KT. CHANCE OF RAIN SHOWERS IN THE EVENING, THEN RAIN SHOWERS
OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY
SOUTHEAST WINDS 15 TO 25 KT VEERING TO SOUTHWEST.
RAIN SHOWERS IN THE MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO
9 FT.
SATURDAY NIGHT
WEST WINDS TO 30 KT. WAVES 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SUNDAY
NORTHWEST WINDS TO 30 KT. WAVES 7 TO 10 FT OCCASIONALLY
TO 13 FT.
MONDAY
NORTHWEST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-022115-
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-
900 AM CDT THU APR 2 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
..GALE WARNING IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
EAST GALES TO 35 KT BECOMING SOUTH. RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS THROUGH MID MORNING, THEN RAIN
SHOWERS WITH A CHANCE OF THUNDERSTORMS THIS AFTERNOON. WAVES 6 TO
9 FT OCCASIONALLY TO 12 FT.
TONIGHT
SOUTH GALES TO 35 KT BECOMING WEST TO 30 KT. RAIN
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS OVERNIGHT.
WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
FRIDAY
WEST WINDS 10 TO 20 KT VEERING TO NORTHEAST 10 TO
15 KT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 2 TO
4 FT.
FRIDAY NIGHT
NORTHEAST WINDS 10 TO 20 KT BECOMING EAST 15 TO
25 KT. RAIN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS
OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY
SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST. RAIN
SHOWERS IN THE MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY NIGHT
WEST WINDS TO 30 KT. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT.
SUNDAY
NORTHWEST WINDS TO 30 KT. WAVES 8 TO 11 FT OCCASIONALLY
TO 14 FT.
MONDAY
NORTHWEST WINDS 10 TO 20 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
LMZ761-022115-
MAFOR 0216/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11256 11266 11256 11356
11456 12640 11630. A CHANCE OF THUNDERSTORMS TONIGHT. WAVES 5 TO
9 FEET THIS AFTERNOON AND TONIGHT. WAVES 4 TO 7 FEET SUBSIDING TO
3 TO 5 FEET FRIDAY MORNING.
MICHIGAN SOUTH...GALE WARNING IN EFFECT...12356 12456 11550 11640
12620. A CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EVENING.
WAVES 5 TO 8 FEET THIS AFTERNOON. WAVES 4 TO 7 FEET BUILDING TO 5
TO 9 FEET TONIGHT. WAVES 3 TO 6 FEET FRIDAY MORNING.
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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