693
FZUS63 KMKX 250159
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
859 PM CDT SUN MAY 24 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 AROUND 30.2 INCHES DEVELOPING SOUTHEAST OF THE LAKE
OVERNIGHT WILL BRING SOUTH WINDS. AS THE HIGH DEVELOPS, DENSE FOG
WILL CONTINUE TO SPREAD ACROSS THE LAKE. A DENSE FOG ADVISORY IS
IN EFFECT INTO MIDDLE MORNING ON MEMORIAL DAY.
THE HIGH PRESSURE SYSTEM WILL PUSH TO THE EAST ON MEMORIAL DAY,
BUT WILL KEEP PRECIPITATION MOSTLY AWAY FROM THE LAKE. THERE MAY
BE SMALL CHANCES FOR SHOWERS OR A STORM OVER THE NORTHERN PART OF
THE LAKE LATER IN THE DAY INTO MONDAY NIGHT, WITH A WARM FRONT IN
THE VICINITY.
SOME CHANCES FOR SHOWERS AND STORMS ARE FORECAST LATER TUESDAY
INTO WEDNESDAY, AS THE FRONT SAGS BACK SOUTH AS A COLD FRONT. HIGH
PRESSURE AROUND 30.3 INCHES IS EXPECTED TO BUILD TOWARD EASTERN
HUDSON BAY TUESDAY INTO WEDNESDAY, WHICH MAY HELP PUSH THE COLD
FRONT SOUTHWARD ACROSS THE REGION.
LMZ261-362-364-366-563-565-567-868-250915-
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-
859 PM CDT SUN MAY 24 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
REST OF TONIGHT
SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. AREAS OF DENSE FOG THROUGH EARLY EVENING, THEN WIDESPREAD
DENSE FOG OVERNIGHT. WAVES 1 TO 2 FT.
MONDAY
SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
PATCHY DENSE FOG IN THE MORNING. WAVES 2 TO 4 FT.
MONDAY NIGHT
SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST TO
30 KT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
TUESDAY
SOUTHWEST WINDS 15 TO 25 KT. WAVES 3 TO 5 FT.
TUESDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST 5 TO
10 KT OVERNIGHT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
WEDNESDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO
20 KT. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST.
WAVES 3 TO 5 FT.
THURSDAY
NORTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 3 FT.
FRIDAY
SOUTHWEST WINDS 5 TO 10 KT BECOMING SOUTH 10 TO 15 KT.
WAVES 1 TO 2 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-250915-
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-
859 PM CDT SUN MAY 24 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT MONDAY
REST OF TONIGHT
SOUTH WINDS 10 TO 15 KT. AREAS OF DENSE FOG.
WAVES 1 TO 2 FT.
MONDAY
SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
PATCHY DENSE FOG IN THE MORNING. WAVES 2 TO 4 FT.
MONDAY NIGHT
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
TUESDAY
SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
TUESDAY NIGHT
SOUTH WINDS 10 TO 20 KT DIMINISHING TO 5 TO
10 KT OVERNIGHT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
WEDNESDAY
NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH 10 TO
20 KT IN THE AFTERNOON. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST.
WAVES 3 TO 5 FT.
THURSDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO
20 KT. WAVES 2 TO 4 FT.
FRIDAY
EAST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 1 TO 2 FT.
LMZ761-250915-
MAFOR 2504/
MICHIGAN NORTH 11414 12424 11420 14430. WAVES 2 FEET OR LESS
OVERNIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET MONDAY.
WAVES 2 TO 4 FEET MONDAY EVENING.
MICHIGAN SOUTH 13414 14420 11420. WAVES 1 FOOT OR LESS OVERNIGHT.
WAVES 1 TO 3 FEET MONDAY AND MONDAY EVENING.
WOOD
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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