640
FZUS63 KMKX 071344
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
844 AM CDT Sat Jun 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...

High pressure of 30.0 inches over Lake Superior will continue east
through this weekend in advance of an approaching low. Winds will
remain light and variable today, becoming southerly and increasing a
little as the low approaches Sunday. Broad low pressure of 29.5
inches will then gradually move eastward from the Northern Plains
through the Great Lakes Region Sunday and Monday. Showers and storms
are expected Sunday afternoon and evening as a cold front crosses
the lake, winds veer southwest and decelerate behind it. Additional
chances for showers and storms on Monday, with winds backing south
in the morning then veering southwest through the afternoon.

LMZ261-362-364-366-563-565-567-868-072115-
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-
844 AM CDT Sat Jun 7 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Northeast winds 5 to 10 kt increasing to 10 to
15 kt. Patchy smoke through mid morning. Waves 1 ft or less.
.TONIGHT...Northeast winds 10 to 15 kt veering to southeast.
Waves 1 to 2 ft.
.SUNDAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt.
Showers likely in the afternoon. Waves 1 to 3 ft.
.SUNDAY NIGHT...Southwest winds 10 to 15 kt. Chance of showers
and thunderstorms in the evening. Waves 1 to 3 ft.
.MONDAY...Southwest winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 1 to 3 ft.
.MONDAY NIGHT...Southwest winds 10 to 20 kt becoming west 10 to
15 kt. Waves 1 to 3 ft.
.TUESDAY...West winds 10 to 20 kt becoming southwest. Waves 1 to
3 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-072115-
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-
844 AM CDT Sat Jun 7 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...Northeast winds 10 to 15 kt becoming east. Chance of
showers. Waves 1 to 2 ft.
.SUNDAY...East winds 5 to 10 kt becoming southeast 10 to 15 kt
late in the morning, then veering to south 10 to 20 kt in the
afternoon. Chance of showers in the afternoon. Waves 1 to 3 ft.
.SUNDAY NIGHT...Southwest winds 10 to 15 kt. Chance of showers.
Waves 1 to 3 ft.
.MONDAY...Southwest winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 1 to 3 ft.
.MONDAY NIGHT...West winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.TUESDAY...West winds 10 to 15 kt becoming southwest 10 to 20 kt.
Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft.

$$

LMZ761-072115-
MAFOR 0716/
MICHIGAN NORTH 11100 11110 11100 11210 13310 11410. Waves 2 feet
or less.

MICHIGAN SOUTH 11100 11810 12110 12210 11200 11210. A chance of
showers tonight. Waves 1 foot or less.

$$


Sheppard

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

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