382
FZUS63 KMKX 091935
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
235 PM CDT MON MAR 9 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
BREEZY SOUTHWEST WINDS WILL DIMINISH THROUGH THIS EVENING AS HIGH
PRESSURE AROUND 29.9 INCHES PUSHES INTO THE UPPER GREAT LAKES.
MARINE DENSE FOG MAY DEVELOP OVER FAR SOUTHERN LAKE MICHIGAN EARLY
TUESDAY MORNING WITH THE LULL IN THE WINDS. A COLD FRONT WILL
GRADUALLY BRING A WIND SHIFT TO THE WEST- NORTHWEST AND EVENTUALLY
NORTH- NORTHEAST. THIS FRONT WILL ACCELERATE FROM NORTH TO SOUTH
OVERNIGHT DOWN LAKE MICHIGAN OVERNIGHT. BRISK NORTHEAST WINDS OF
15 TO 25 KT DEVELOPING TUESDAY MORNING WILL PERSIST THROUGH
TUESDAY NIGHT.
LOW PRESSURE AROUND 29.6 INCHES THEN DEVELOPS IN THE CENTRAL GREAT
PLAINS AND PROGRESSES INTO NORTHERN ILLINOIS TUESDAY NIGHT. THERE
IS SOME POTENTIAL FOR ISOLATED THUNDERSTORMS ACROSS THE SOUTHERN
THIRD OF THE LAKE. LOW PRESSURE EJECTS TO THE LOWER GREAT LAKES
INTO WEDNESDAY MORNING, TURNING WINDS NORTHWESTERLY. NORTH TO
NORTHWEST GALES ARE POSSIBLE WEDNESDAY MORNING THROUGH WEDNESDAY
AFTERNOON, MAINLY OVER THE SOUTH HALF OF THE LAKE. WINDS
GRADUALLY DIMINISH INTO THURSDAY MORNING.
ANOTHER ROUND OF GALES IS POSSIBLE THURSDAY NIGHT INTO FRIDAY AS A
COMPACT CLIPPER LOW OF 29.2 INCHES CROSSES NORTHERN LAKE MICHIGAN.
LMZ261-362-364-366-563-565-567-868-100315-
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-
235 PM CDT MON MAR 9 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TONIGHT
NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 3 TO 5 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
TUESDAY
NORTHEAST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS AND
SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
TUESDAY NIGHT
NORTHEAST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. RAIN, SNOW AND LIGHT FREEZING RAIN LIKELY IN THE EVENING,
THEN RAIN LIKELY, CHANCE OF LIGHT FREEZING RAIN AND SNOW
OVERNIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT.
WEDNESDAY
NORTHEAST WINDS TO 30 KT BECOMING NORTH. SNOW, RAIN,
LIGHT FREEZING RAIN AND LIGHT SLEET LIKELY IN THE MORNING, THEN
CHANCE OF SNOW IN THE AFTERNOON. WAVES 7 TO 10 FT OCCASIONALLY TO
13 FT.
WEDNESDAY NIGHT
NORTHWEST WINDS TO 30 KT. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT SUBSIDING TO 5 TO 8 FT OCCASIONALLY TO
10 FT.
THURSDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES
3 TO 5 FT SUBSIDING TO 2 TO 4 FT.
THURSDAY NIGHT
SOUTH WINDS TO 30 KT BECOMING SOUTHEAST GALES
TO 40 KT. SNOW AND RAIN. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT
BUILDING TO 12 TO 16 FT OCCASIONALLY TO 21 FT.
FRIDAY
SOUTHEAST GALES TO 40 KT VEERING TO NORTHWEST. CHANCE
OF SNOW AND RAIN. WAVES 14 TO 18 FT OCCASIONALLY TO 23 FT.
SATURDAY
NORTHWEST WINDS 10 TO 20 KT BACKING TO SOUTHEAST.
CHANCE OF SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO
2 TO 4 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-100315-
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-
235 PM CDT MON MAR 9 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TONIGHT
SOUTH WINDS 10 TO 20 KT BACKING TO NORTH 15 TO 25 KT.
AREAS OF DENSE FOG OVERNIGHT. WAVES 3 TO 5 FT BUILDING TO 4 TO
6 FT OCCASIONALLY TO 8 FT.
TUESDAY
NORTH WINDS TO 30 KT BECOMING NORTHEAST 15 TO 25 KT.
PATCHY FOG. CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT.
TUESDAY NIGHT
NORTHEAST WINDS 15 TO 25 KT BECOMING NORTH.
RAIN, CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
RAIN WITH A CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT.
WEDNESDAY
NORTH WINDS TO 30 KT BECOMING NORTHWEST GALES TO
35 KT. RAIN LIKELY IN THE MORNING, THEN CHANCE OF RAIN, SNOW AND
LIGHT SLEET IN THE AFTERNOON. WAVES 7 TO 10 FT OCCASIONALLY TO
13 FT BUILDING TO 8 TO 12 FT OCCASIONALLY TO 16 FT.
WEDNESDAY NIGHT
NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. WAVES 8 TO 12 FT OCCASIONALLY TO 16 FT SUBSIDING TO 7 TO
10 FT OCCASIONALLY TO 13 FT.
THURSDAY
NORTHWEST WINDS 10 TO 20 KT BACKING TO SOUTHWEST.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 2 TO 4 FT.
THURSDAY NIGHT
SOUTH WINDS TO 30 KT INCREASING TO GALES TO
45 KT. CHANCE OF RAIN AND SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO
13 FT BUILDING TO 12 TO 16 FT OCCASIONALLY TO 21 FT.
FRIDAY
WEST GALES TO 45 KT BECOMING NORTHWEST GALES TO 40 KT.
WAVES 14 TO 18 FT OCCASIONALLY TO 23 FT.
SATURDAY
NORTHEAST WINDS 10 TO 20 KT BECOMING SOUTHEAST.
CHANCE OF SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO
3 TO 5 FT.
LMZ761-100315-
MAFOR 0922/
MICHIGAN NORTH 12120 15130. A CHANCE OF SNOW SHOWERS TUESDAY
AFTERNOON. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET, THEN
BUILDING TO 3 TO 6 FEET TONIGHT. WAVES 4 TO 7 FEET TUESDAY.
MICHIGAN SOUTH 11430 11320 11324 11834 12830 12130. WAVES 2 TO 4
FEET SUBSIDING TO 1 TO 3 FEET, THEN BUILDING TO 3 TO 6 FEET
TONIGHT. WAVES 4 TO 7 FEET TUESDAY.
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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