621
FZUS63 KMKX 071956
GLFLM
OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
256 PM CDT WED MAY 7 2025
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
NORTH TO NORTHEAST GUSTS OF 20 TO 30 KNOTS WILL CONTINUE THROUGH
THIS EVENING AND INTO TONIGHT, AS HIGH PRESSURE OF 30.4 INCHES
ACROSS EASTERN CANADA BUILDS SOUTHWARD OVER THE NORTHERN GREAT
LAKES TOWARDS THE AREA. THE HIGHEST GUSTS ARE EXPECTED TO BE OVER
CENTRAL AND SOUTHERN PORTIONS OF THE LAKE WITH A FEW GALES
POSSIBLE. WINDS WILL WEAKEN LATE TONIGHT INTO THURSDAY, BUT WILL
REMAIN ON THE BREEZY SIDE AS THE HIGH GRADUALLY SLIDES
SOUTHEASTWARD. LIGHT WINDS ARE THEN EXPECTED FRIDAY AS THE HIGH OF
30.3 INCHES MOVES OVERHEAD.
LMZ261-362-364-366-563-565-567-868-080315-
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-
256 PM CDT WED MAY 7 2025
SHEBOYGAN WI TO PENTWATER MI NORTH...
TONIGHT
NORTH WINDS TO 30 KT BECOMING NORTHEAST AFTER
MIDNIGHT, THEN DIMINISHING TO 10 TO 20 KT LATE. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT.
THURSDAY
NORTHEAST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. WAVES 3 TO 5 FT.
THURSDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST LATE
IN THE EVENING, THEN DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT
BECOMING EAST LATE. WAVES 3 TO 5 FT SUBSIDING TO 1 TO 3 FT.
FRIDAY
WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST IN THE
AFTERNOON. WAVES 1 TO 2 FT.
FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SATURDAY
NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH 10 TO
20 KT. WAVES 1 TO 3 FT.
SATURDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING EAST 10 TO
15 KT. WAVES 1 TO 3 FT.
SUNDAY
SOUTHEAST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. WAVES 1 TO 2 FT.
MONDAY
SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 3 FT.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-080315-
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-
256 PM CDT WED MAY 7 2025
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TONIGHT
NORTH WINDS TO 30 KT BECOMING NORTHEAST 15 TO 25 KT.
WAVES 6 TO 9 FT OCCASIONALLY TO 12 FT.
THURSDAY
NORTHEAST WINDS 15 TO 25 KT BECOMING NORTH. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT.
THURSDAY NIGHT
NORTH WINDS 15 TO 25 KT BECOMING NORTHEAST
10 TO 20 KT LATE IN THE EVENING, THEN BECOMING EAST 10 TO 15 KT
OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO
4 FT.
FRIDAY
NORTHEAST WINDS 5 TO 10 KT BECOMING NORTH 10 TO 15 KT.
WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.
FRIDAY NIGHT
WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 5 TO
10 KT. WAVES 1 TO 2 FT.
SATURDAY
WEST WINDS 10 TO 15 KT VEERING TO NORTH 10 TO 20 KT.
WAVES 1 TO 3 FT.
SATURDAY NIGHT
NORTH WINDS 10 TO 20 KT BECOMING NORTHEAST
10 TO 15 KT. WAVES 1 TO 3 FT.
SUNDAY
EAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
MONDAY
SOUTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
LMZ761-080315-
MAFOR 0722/
MICHIGAN NORTH 12840 11140 11130 11120 11110 11120 11130. WAVES 4
TO 7 FEET SUBSIDING TO 3 TO 6 FEET TONIGHT. WAVES 2 TO 4 FEET
THURSDAY.
MICHIGAN SOUTH 11840 11850 11140 12130 12120 11830. WAVES 5 TO 9
FEET SUBSIDING TO 4 TO 7 FEET TONIGHT. WAVES 3 TO 6 FEET
SUBSIDING TO 2 TO 4 FEET THURSDAY.
KUROSKI
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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