045
FZUS63 KMKX 151405
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
905 AM CDT Sun Jun 15 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...

High pressure around 30.2 inches over eastern Ontario will keep
generally northeast winds today, with north to northeast winds
later this afternoon into this evening. Winds should then become
south to southeast on Monday, as the high moves through the New
England region. South winds should gradually increase Tuesday
into early Wednesday, as low pressure around 29.7 inches
approaches the region from the Central Plains. Chances for showers
and thunderstorms are forecast at times Monday through the middle
of the week as well.

LMZ261-362-364-366-563-565-567-868-152130-
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-
905 AM CDT Sun Jun 15 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Northeast winds 10 to 15 kt. Waves 1 to 2 ft.
.TONIGHT...Northeast winds 10 to 15 kt veering to south. Waves
1 ft or less.
.MONDAY...South winds 10 to 15 kt. Waves 1 to 2 ft.
.MONDAY NIGHT...South winds 10 to 15 kt increasing to 10 to
20 kt. Chance of thunderstorms in the evening, then chance of
showers and thunderstorms overnight. Waves 1 to 3 ft.
.TUESDAY...South winds 10 to 20 kt becoming southwest. Chance of
showers and thunderstorms. Waves 1 to 3 ft.
.TUESDAY NIGHT...Southwest winds 10 to 15 kt becoming southeast
5 to 10 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming north. Chance
of showers and thunderstorms. Waves 1 to 2 ft.
.THURSDAY...Northwest winds 10 to 20 kt. Chance of showers and
thunderstorms. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-152130-
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-
905 AM CDT Sun Jun 15 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Northeast winds 5 to 10 kt becoming north 10 to
15 kt. Waves 1 to 2 ft.
.TONIGHT...North winds 10 to 15 kt veering to southeast. Waves
1 to 2 ft.
.MONDAY...Southeast winds 10 to 15 kt. Waves 1 to 2 ft.
.MONDAY NIGHT...Southeast winds 10 to 15 kt becoming south. Waves
1 to 3 ft.
.TUESDAY...South winds 10 to 20 kt. Chance of showers and
thunderstorms in the afternoon. Waves 1 to 3 ft.
.TUESDAY NIGHT...South winds 10 to 15 kt becoming southwest 5 to
10 kt. Showers and thunderstorms likely. Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt becoming west. Showers
and thunderstorms likely. Waves 1 to 2 ft.
.THURSDAY...Northwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft.

$$

LMZ761-152130-
MAFOR 1516/
MICHIGAN NORTH 11100 13110 11210 11310 12410. Waves 1 foot or
less.

MICHIGAN SOUTH 11100 12810 12110 13310. Waves 1 foot or less.

$$
Wood

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

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