610
FZUS63 KMKX 210152
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
852 PM CDT Fri Sep 20 2024

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...

A cold front will continue to slowly move east across Lake
Michigan tonight. Light southerly winds will shift westerly and
diminish behind this front as weak high pressure builds into
Saturday morning. Patchy dense fog is possible in the northern
half of the open waters tonight into Saturday morning with light
winds and a moist airmass. Winds will become southerly once again
Saturday afternoon and evening ahead of a Canadian cold front
Sunday morning. Isolated to scattered thunderstorms are expected
ahead of and along this front, ending by Sunday evening. Winds
will shift to become modest and northerly behind the front and
will continue into early next week.

LMZ261-362-364-366-563-565-567-868-210930-
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-
852 PM CDT Fri Sep 20 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 10 to 15 kt veering to west.
Patchy fog. Waves 1 to 3 ft.
.SATURDAY...Northwest winds 5 to 10 kt backing to south. Patchy
dense fog in the morning. Waves 1 to 2 ft.
.SATURDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Chance of showers overnight. Waves 1 to 2 ft.
.SUNDAY...Northwest winds 10 to 15 kt becoming north 10 to 20 kt.
Showers likely. Waves 2 to 4 ft.
.SUNDAY NIGHT...North winds 10 to 20 kt. Showers likely in the
evening, then chance of showers overnight. Waves 3 to 5 ft.
.MONDAY...North winds 10 to 20 kt. Waves 3 to 5 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers. Waves 2 to 4 ft.
.TUESDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Chance of showers. Waves 1 to 3 ft.
.WEDNESDAY...Northwest winds 10 to 15 kt becoming west 10 to
20 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-210930-
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-
852 PM CDT Fri Sep 20 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...South winds 5 to 10 kt veering to northwest.
Waves 1 to 3 ft.
.SATURDAY...West winds 5 to 10 kt backing to southeast. Waves
1 to 2 ft.
.SATURDAY NIGHT...Southeast winds 10 to 15 kt becoming south.
Chance of showers and thunderstorms overnight. Waves 1 to 2 ft.
.SUNDAY...Southwest winds 10 to 15 kt veering to northwest 10 to
20 kt. Showers likely with a chance of thunderstorms in the
morning, then showers in the afternoon. Waves 2 to 4 ft.
.SUNDAY NIGHT...North winds 10 to 20 kt. Showers likely in the
evening, then chance of showers overnight. Waves 4 to 6 ft
occasionally to 8 ft.
.MONDAY...North winds 10 to 20 kt. Chance of showers. Waves 4 to
6 ft occasionally to 8 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers. Waves 3 to 5 ft.
.TUESDAY...Northeast winds 10 to 20 kt becoming north. Chance of
showers. Waves 2 to 4 ft.
.WEDNESDAY...Northwest winds 10 to 15 kt. Waves 1 to 3 ft.

$$

LMZ761-210930-
MAFOR 2104/
MICHIGAN NORTH 11510 11600 11700 19704 11600 11500 13410. Waves 1
to 3 feet overnight. Waves 2 feet or less Saturday and Saturday
evening.

MICHIGAN SOUTH 11500 11600 11700 11500 11400 13310. Waves 2 feet
or less.

$$


MH

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes