096
FZUS63 KMKX 240740
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
240 AM CDT WED JUN 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
WEAK LOW PRESSURE AROUND 29.9 INCHES IN NORTHERN MINNESOTA THIS
MORNING WILL INDUCE A MODEST SOUTHERLY BREEZE POST-DAWN THIS
MORNING. AS THIS SYSTEM PUSHES EASTWARD THROUGH NORTHERN WI THIS
EVENING WE EXPECT WINDS TO DECELERATE, TURNING EAST OVER NORTHERN
PORTIONS OF THE LAKE AND REMAINING SOUTH OVER THE SOUTHERN HALF.
SHOWERS AND THUNDERSTORMS ARE EXPECTED AT TIMES TODAY AND TONIGHT
WITH THE PASSAGE OF THIS SYSTEM.
LIGHT NORTHERLY WINDS ARE EXPECTED INTO THURSDAY AS LOW PRESSURE
DEPARTS EASTWARD. HIGH PRESSURE AROUND 30.0 INCHES OVER ONTARIO
AND THE WESTERN GREAT LAKES WILL DOMINATE FRIDAY THROUGH SATURDAY
WITH LIGHT NORTHERLY WINDS SHIFTING TO NORTHEASTERLY. SUNDAY, LOW
PRESSURE DEEPENS TO 29.4 INCHES IN THE NORTHERN HIGH PLAINS,
BRINGING BREEZY SOUTHEASTERLY WINDS TO THE LAKE. WINDS TURN
SOUTHERLY AND STRENGTHEN INTO MONDAY AS LOW PRESSURE EXITS INTO
THE CANADIAN PRAIRIES. ON AND OFF THUNDERSTORMS BECOME MORE LIKELY
DURING THIS TIME.
LMZ261-362-364-366-563-565-567-868-241515-
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-
240 AM CDT WED JUN 24 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TODAY
SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. WAVES 1 TO
2 FT BUILDING TO 2 TO 4 FT.
TONIGHT
SOUTHEAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT
LATE IN THE EVENING, THEN DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT BECOMING EAST LATE. PATCHY FOG. CHANCE OF SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. WAVES 2 TO 4 FT SUBSIDING TO 1 TO
3 FT.
THURSDAY
NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH 10 TO
15 KT. PATCHY FOG IN THE MORNING. WAVES 1 TO 2 FT.
THURSDAY NIGHT
NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 FT OR LESS.
FRIDAY
NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH 10 TO 20 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT.
FRIDAY NIGHT
NORTHEAST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 2 FT.
SATURDAY
EAST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 1 TO 2 FT.
SUNDAY
SOUTHEAST WINDS 10 TO 20 KT. WAVES 3 TO 5 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-241515-
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-
240 AM CDT WED JUN 24 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TODAY
SOUTH WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT.
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS THIS MORNING, THEN
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS THIS AFTERNOON.
WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
TONIGHT
SOUTH WINDS 10 TO 20 KT BECOMING WEST 10 TO 15 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. PATCHY FOG
OVERNIGHT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
THURSDAY
WEST WINDS 5 TO 10 KT VEERING TO NORTH 10 TO 15 KT.
WAVES 1 TO 2 FT.
THURSDAY NIGHT
NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 2 FT.
FRIDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO 20 KT.
WAVES 1 TO 2 FT.
FRIDAY NIGHT
NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 3 FT.
SATURDAY
EAST WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO 15 KT.
WAVES 1 TO 2 FT.
SUNDAY
SOUTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT.
WAVES 3 TO 5 FT.
LMZ761-241515-
MAFOR 2410/
MICHIGAN NORTH 11410 11426 12430 11320 11310 11300 11200. WAVES 1
FOOT OR LESS BUILDING TO 2 TO 4 FEET TODAY. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET TONIGHT.
MICHIGAN SOUTH 11416 11426 12436 11420 11410 12510. A CHANCE OF
THUNDERSTORMS THIS AFTERNOON AND EVENING. WAVES 1 FOOT OR LESS
BUILDING TO 2 TO 4 FEET TODAY. WAVES 2 TO 4 FEET SUBSIDING TO 1
TO 3 FEET TONIGHT.
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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