512
FZUS63 KMKX 131946
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
246 PM CDT SAT JUN 13 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
LOW PRESSURE AROUND 29.3 INCHES LINGERS IN THE HUDSON BAY,
ALLOWING FOR CONTINUED GUSTY SOUTHWEST WINDS THROUGH THIS EVENING. THIS
EVENING INTO TONIGHT, A COLD FRONT FROM THIS SYSTEM WILL SHIFT
WINDS TO NORTHWESTERLY AND BRINGING ISOLATED THUNDERSTORMS.
NORTHWEST WINDS CONTINUE THROUGH SUNDAY, BECOMING LIGHT AND
VARIABLE SUNDAY NIGHT AS HIGH PRESSURE AROUND 30.1 INCHES BUILDS
IN THE CENTRAL PLAINS TO MIDDLE MISSISSIPPI VALLEY. WINDS THEN
SHIFT SOUTHWESTERLY ON MONDAY AS HIGH PRESSURE SLIDES SOUTHWARD
AND LOW PRESSURE OF 29.7 INCHES PROGRESSES SOUTHEASTWARD THROUGH
THE NORTHERN PLAINS. LOW PRESSURE CROSSES LAKE MICHIGAN ON
TUESDAY, WITH STRONG SOUTHWESTERLY WINDS TO THE SOUTH OF THE LOW.
THUNDERSTORMS ARE POSSIBLE ONCE AGAIN. WEDNESDAY, AN ADDITIONAL
LOW PRESSURE SYSTEM WILL PROGRESS EASTWARD INTO THE UPPER MIDWEST,
BRINGING GUSTY SOUTHEASTERLY WINDS AND PERHAPS SOME GALES. THIS
LOW IS ALSO EXPECTED TO CROSS LAKE MICHIGAN, BRINGING
THUNDERSTORMS AND GUSTY NORTHWEST WINDS BY THE OVERNIGHT HOURS AND
INTO THURSDAY.
LMZ261-362-364-366-563-565-567-868-140315-
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-
246 PM CDT SAT JUN 13 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TONIGHT
WEST WINDS 10 TO 20 KT BECOMING NORTHWEST 10 TO 15 KT.
WAVES 3 TO 5 FT SUBSIDING TO 2 TO 4 FT.
SUNDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 15 TO 25 KT.
WAVES 2 TO 4 FT.
SUNDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES
2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
MONDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 1 TO
3 FT.
MONDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
TUESDAY
SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH TO 30 KT IN
THE AFTERNOON. CHANCE OF SHOWERS IN THE AFTERNOON. WAVES 2 TO
4 FT.
TUESDAY NIGHT
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
15 KT. WAVES 2 TO 4 FT.
WEDNESDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 15 TO
25 KT. WAVES 1 TO 2 FT BUILDING TO 3 TO 5 FT.
THURSDAY
NORTHWEST GALES TO 35 KT BECOMING WEST TO 30 KT.
CHANCE OF SHOWERS. WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT
SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-140315-
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-
246 PM CDT SAT JUN 13 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TONIGHT
SOUTHWEST WINDS 10 TO 20 KT VEERING TO NORTHWEST.
CHANCE OF SHOWERS AND THUNDERSTORMS THIS EVENING, THEN SHOWERS
LIKELY WITH SLIGHT CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 3 TO
5 FT SUBSIDING TO 2 TO 4 FT.
SUNDAY
NORTHWEST WINDS 10 TO 20 KT. SLIGHT CHANCE OF SHOWERS
IN THE MORNING. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT.
SUNDAY NIGHT
WEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
MONDAY
WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. WAVES 2 TO
4 FT.
MONDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
TUESDAY
SOUTHWEST WINDS 15 TO 25 KT INCREASING TO 30 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. WAVES 2 TO
4 FT.
TUESDAY NIGHT
SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT. WAVES 2 TO 4 FT.
WEDNESDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH TO 30 KT.
SHOWERS LIKELY. WAVES 1 TO 3 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT.
THURSDAY
WEST GALES TO 40 KT BECOMING NORTHWEST GALES TO
35 KT. WAVES 8 TO 11 FT OCCASIONALLY TO 14 FT SUBSIDING TO 7 TO
10 FT OCCASIONALLY TO 13 FT.
LMZ761-140315-
MAFOR 1322/
MICHIGAN NORTH 11630 11710 11810 12710 11720 11730 11630. WAVES 2
TO 4 FEET SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 1 TO 3 FEET
BUILDING TO 2 TO 4 FEET SUNDAY.
MICHIGAN SOUTH 11530 11626 11716 11726 11720 13730. A CHANCE OF
THUNDERSTORMS THIS EVENING. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3
FEET TONIGHT. WAVES 1 TO 3 FEET BUILDING TO 2 TO 4 FEET SUNDAY.
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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