896
FZUS63 KMKX 031338
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
838 AM CDT FRI APR 3 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
WESTERLY WINDS WILL DIMINISH THROUGH LATE MORNING AS A WEAK
SURFACE RIDGE PASSES OVER THE LAKE. WINDS WILL THEN BECOME
NORTHEASTERLY BY THIS EVENING AS A WEAKER LOW PRESSURE AROUND
29.8 INCHES OCCLUDES AND CROSSES CENTRAL LAKE MICHIGAN THROUGH
EARLY SATURDAY. A FEW EASTERLY GALE FORCE GUSTS ARE POSSIBLE OVER
THE NORTHERN END OF THE LAKE SATURDAY MORNING. WINDS THEN VEER
SOUTHWESTERLY SATURDAY AFTERNOON AS THE SURFACE LOW PRESSURE
EXITS NORTHEASTWARD.
WESTERLY WINDS WILL PERSIST THROUGH THE WEEKEND. A WEAK LOW
PRESSURE TROUGH AROUND 30.0 INCHES CROSSING LAKE SUPERIOR AND
NORTHERN LAKE MICHIGAN WILL DRAG A COLD FRONT DOWN THE LAKE
MONDAY AFTERNOON. A BRIEF PERIOD OF BRISK NORTHERLY WINDS IS
EXPECTED BEHIND IT, DIMINISHING INTO TUESDAY MORNING.
LMZ261-362-364-366-563-565-567-868-032115-
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-
838 AM CDT FRI APR 3 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
REST OF TODAY
WEST WINDS 10 TO 20 KT VEERING TO NORTH. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.
TONIGHT
NORTHEAST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT
LATE IN THE EVENING, THEN BECOMING EAST TO 30 KT AFTER MIDNIGHT. A
FEW GUSTS TO GALE FORCE OVER FAR NORTHERN PORTIONS OF THE LAKE.
SCATTERED RAIN SHOWERS IN THE EVENING, INCREASING IN COVERAGE. A
CHANCE FOR THUNDER. FREEZING RAIN POSSIBLE OVER FAR NORTHERN
PORTIONS OF THE LAKE. WAVES 3 TO 5 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
SATURDAY
EAST WINDS TO 30 KT BECOMING SOUTHEAST LATE IN THE
MORNING, THEN BECOMING SOUTH TO 30 KT EARLY IN THE AFTERNOON
BECOMING SOUTHWEST 15 TO 25 KT LATE. A FEW GUSTS TO GALE FORCE
POSSIBLE IN THE MORNING OVER THE FAR NORTHERN LAKE. RAIN SHOWERS IN
THE MORNING, THEN CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES
5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
SATURDAY NIGHT
WEST WINDS TO 30 KT. WAVES 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SUNDAY
NORTHWEST WINDS TO 30 KT. WAVES 6 TO 9 FT OCCASIONALLY
TO 12 FT.
SUNDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO
15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
MONDAY
WEST WINDS 10 TO 20 KT BECOMING NORTHWEST. WAVES 1 TO
3 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
TUESDAY
NORTH WINDS 15 TO 25 KT BECOMING WEST 10 TO 15 KT.
WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT SUBSIDING TO 3 TO 5 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-032115-
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-
838 AM CDT FRI APR 3 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
REST OF TODAY
WEST WINDS 10 TO 20 KT VEERING TO NORTHEAST.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 1 TO 3 FT.
TONIGHT
NORTHEAST WINDS 15 TO 25 KT BECOMING EAST TO 30 KT.
SCATTERED RAIN SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
RAIN SHOWERS AND SCATTERED THUNDERSTORMS OVERNIGHT. WAVES 2 TO
4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
SATURDAY
SOUTHEAST WINDS TO 30 KT VEERING TO WEST 15 TO 25 KT.
CHANCE OF RAIN SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
SATURDAY NIGHT
WEST WINDS 15 TO 25 KT INCREASING TO 30 KT.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT BUILDING TO 6 TO 9 FT
OCCASIONALLY TO 12 FT.
SUNDAY
NORTHWEST WINDS TO 30 KT. WAVES 7 TO 10 FT OCCASIONALLY
TO 13 FT.
SUNDAY NIGHT
WEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 3 TO 5 FT SUBSIDING TO 1 TO 3 FT.
MONDAY
NORTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT BUILDING
TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
TUESDAY
NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 15 KT.
WAVES 8 TO 12 FT OCCASIONALLY TO 16 FT SUBSIDING TO 5 TO 8 FT
OCCASIONALLY TO 10 FT.
LMZ761-032115-
MAFOR 0316/
MICHIGAN NORTH 11720 11820 11830 19836 11130 19136 11246 19249
11256 19259 11256 11356. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3
FEET THIS AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3 TO 5 FEET
TONIGHT. WAVES 5 TO 8 FEET SATURDAY MORNING.
MICHIGAN SOUTH 11710 11110 11130 11130 19139 11236 19239 11246
19249 11346 11436. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET
THIS AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 3 TO 6 FEET
TONIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 6 FEET SATURDAY
MORNING.
SHEPPARD
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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