612
FZUS63 KMKX 061949
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
249 PM CDT MON JUL 6 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 30.1 INCHES WILL REMAIN IN PLACE OVER THE
UPPER GREAT LAKES THROUGH TUESDAY. EXPECT STEADY NORTH TO
NORTHEAST WINDS TO BECOME LIGHT AND VARIABLE LATER TONIGHT INTO
TUESDAY. SOUTHWEST WINDS WILL INCREASE TUESDAY NIGHT AND BECOME
GUSTY ON WEDNESDAY AS WEAK LOW PRESSURE AROUND 29.8 INCHES AND AN
ACCOMPANYING COLD FRONT APPROACHES FROM THE NORTHERN PLAINS. WINDS
WILL BECOME NORTHERLY BEHIND THE FRONTAL PASSAGE THURSDAY
AFTERNOON INTO FRIDAY, WITH HIGH PRESSURE AROUND 30.1 INCHES
BUILDING INTO THE THE UPPER GREAT LAKES REGION THROUGH THE END OF
THE WEEK.
LMZ261-362-364-366-563-565-567-868-070315-
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-
249 PM CDT MON JUL 6 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TONIGHT
NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST 10 TO 15 KT
LATE THIS EVENING, THEN DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT
BACKING TO WEST LATE. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
TUESDAY
SOUTH WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES 1 TO
2 FT.
TUESDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 2 FT.
WEDNESDAY
SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH. CHANCE
OF SHOWERS. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
WEDNESDAY NIGHT
SOUTHWEST WINDS 10 TO 20 KT BECOMING WEST.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN SHOWERS WITH A CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES 2 TO
4 FT.
THURSDAY
NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH. CHANCE OF
SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. WAVES 1 TO 3 FT.
THURSDAY NIGHT
NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 1 TO 3 FT.
FRIDAY
NORTHEAST WINDS 10 TO 15 KT BECOMING NORTH 10 TO 20 KT.
WAVES 1 TO 2 FT.
SATURDAY
SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. WAVES 1 FT OR LESS.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-070315-
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-
249 PM CDT MON JUL 6 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TONIGHT
NORTH WINDS 15 TO 25 KT DIMINISHING TO 5 TO 10 KT.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
TUESDAY
NORTH WINDS 5 TO 10 KT BECOMING NORTHWEST. WAVES 1 TO
2 FT.
TUESDAY NIGHT
SOUTHWEST WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WEDNESDAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO
20 KT. WAVES 1 TO 2 FT BUILDING TO 2 TO 4 FT.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 20 KT BECOMING SOUTHWEST.
CHANCE OF SHOWERS. WAVES 2 TO 4 FT.
THURSDAY
SOUTHWEST WINDS 10 TO 20 KT. SHOWERS LIKELY IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. WAVES 1 TO 3 FT.
THURSDAY NIGHT
NORTHWEST WINDS 10 TO 20 KT BECOMING NORTH
10 TO 15 KT. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO
3 FT.
FRIDAY
NORTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
SATURDAY
EAST WINDS 10 TO 15 KT BECOMING NORTHEAST 10 TO
20 KT. WAVES 1 TO 2 FT.
LMZ761-070315-
MAFOR 0622/
MICHIGAN NORTH 11830 11120 11100 11700 12500 12510. WAVES 1 TO 3
FEET SUBSIDING TO 1 FOOT OR LESS TONIGHT. WAVES 1 FOOT OR LESS
TUESDAY.
MICHIGAN SOUTH 11830 11820 14800 11810 11710. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET TONIGHT. WAVES 2 FEET OR LESS TUESDAY.
CRONCE
EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/MKX/GLFTABLE
GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT:
WEATHER.GOV/GREATLAKES
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page