081
FZUS63 KMKX 030659
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
159 AM CDT FRI JUL 3 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
LARGE HIGH PRESSURE AROUND 30.1 INCHES WILL REMAIN PARKED OVER
THE OHIO VALLEY AND APPALACHIAN MOUNTAINS INTO FRIDAY NIGHT.
MEANWHILE, A TROUGH OF LOW PRESSURE WILL REMAIN OVER THE GREAT
PLAINS THROUGH TONIGHT. A WEAK LOW PRESSURE AREA MAY THEN
ORGANIZE AND SLOWLY MOVE ACROSS WISCONSIN AND LAKE MICHIGAN FROM
SATURDAY AFTERNOON INTO SUNDAY, OR PASS FARTHER SOUTH ACROSS
ILLINOIS INTO THE OHIO VALLEY. MODEST SOUTH TO SOUTHWEST WINDS
WILL BECOME A BIT LIGHTER TODAY. LIGHT TO MODEST WINDS ARE THEN
FORECAST FOR THE WEEKEND, BUT WITH SOME UNCERTAINTY ON WIND
DIRECTION GIVEN LOW CONFIDENCE IN THE TRACK OF THE LOW. A STORMY
PERIOD IS EXPECTED FOR CENTRAL AND SOUTHERN LAKE MICHIGAN FROM
THROUGH THE WEEKEND. PATCHY MARINE FOG WILL BE POSSIBLE AT TIMES
AS WARM AND HUMID AIR FLOWS OVER THE RELATIVELY COOLER LAKE.
LMZ261-362-364-366-563-565-567-868-031515-
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-
159 AM CDT FRI JUL 3 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TODAY
SOUTHWEST WINDS 10 TO 15 KT. PATCHY DENSE FOG THIS
MORNING, THEN PATCHY FOG THIS AFTERNOON. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 1 TO 2 FT.
TONIGHT
SOUTHWEST WINDS 10 TO 15 KT VEERING TO NORTH. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN SLIGHT CHANCE OF SHOWERS OVERNIGHT. WAVES 1 TO 2 FT.
SATURDAY
NORTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 2 FT.
SATURDAY NIGHT
EAST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
SUNDAY
SOUTHEAST WINDS 10 TO 20 KT BECOMING NORTHEAST. CHANCE
OF SHOWERS. WAVES 1 TO 3 FT.
SUNDAY NIGHT
NORTHEAST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 1 TO 3 FT.
MONDAY
NORTHEAST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 2 FT.
TUESDAY
NORTHWEST WINDS 10 TO 15 KT BACKING TO WEST 10 TO
20 KT. WAVES 1 FT OR LESS.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-031515-
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-
159 AM CDT FRI JUL 3 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TODAY
SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH. PATCHY DENSE
FOG. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS MORNING,
THEN CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES
1 TO 2 FT.
TONIGHT
SOUTHWEST WINDS 10 TO 15 KT VEERING TO NORTHWEST 5 TO
10 KT. CHANCE OF SHOWERS AND THUNDERSTORMS. PATCHY FOG OVERNIGHT.
WAVES 1 TO 2 FT.
SATURDAY
NORTH WINDS 5 TO 10 KT BECOMING NORTHEAST 10 TO
15 KT, THEN INCREASING TO 10 TO 20 KT LATE. CHANCE OF SHOWERS IN
THE MORNING, THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. WAVES 1 TO 2 FT.
SATURDAY NIGHT
EAST WINDS 10 TO 20 KT BECOMING SOUTH 10 TO
15 KT. CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS OVERNIGHT. WAVES
1 TO 3 FT.
SUNDAY
SOUTH WINDS 10 TO 15 KT VEERING TO NORTHWEST 10 TO
20 KT. SHOWERS LIKELY IN THE MORNING, THEN CHANCE OF SHOWERS IN
THE AFTERNOON. WAVES 1 TO 3 FT.
SUNDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST 10 TO
15 KT. CHANCE OF SHOWERS. WAVES 1 TO 3 FT.
MONDAY
NORTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT.
WAVES 1 TO 3 FT.
TUESDAY
NORTH WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.
LMZ761-031515-
MAFOR 0310/
MICHIGAN NORTH 14510 11510 11700 12800. A CHANCE OF SHOWERS EARLY
THIS MORNING AND THIS EVENING. WAVES 2 FEET OR LESS.
MICHIGAN SOUTH 12510 11410 19414 12410 12500 11700. A CHANCE OF
SHOWERS EARLY THIS MORNING. A CHANCE OF SHOWERS AND THUNDERSTORMS
THIS AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS TONIGHT.
WAVES 2 FEET OR LESS.
QUIGLEY
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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