236
FZUS63 KMKX 031427
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
827 AM CST Sat Jan 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...

Modest west northwest winds will prevail through tonight as low
pressure continues to weaken over Hudson Bay. A ridge of high
pressure around 30.1 inches will also extend from Minnesota into
the Ohio Valley during this time. The high will then move across
Lake Michigan on Sunday. Breezy southerly winds will then develop
Sunday night and linger into Monday morning, as a wave of low
pressure around 29.7 inches moves across the Upper Great Lakes.

LMZ261-362-364-366-563-565-567-868-032215-
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-
827 AM CST Sat Jan 3 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Northwest winds 10 to 15 kt becoming west 10 to
20 kt. Snow showers through mid morning, then scattered snow
showers this afternoon. Waves 2 to 4 ft.
.TONIGHT...Northwest winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 15 kt backing to southwest 5 to
10 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.SUNDAY NIGHT...South winds 15 to 25 kt. Snow. Waves 3 to 5 ft
building to 5 to 8 ft occasionally to 10 ft.
.MONDAY...Southwest winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.MONDAY NIGHT...Southwest winds 5 to 10 kt. Waves 2 to 4 ft
subsiding to 1 to 2 ft.
.TUESDAY...South winds 10 to 15 kt. Waves 1 to 2 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming southwest. Waves
1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-032215-
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-
827 AM CST Sat Jan 3 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Northwest winds 5 to 10 kt becoming west 10 to
15 kt early this afternoon, then increasing to 10 to 20 kt late.
Scattered snow showers through mid morning, then isolated snow
showers this afternoon. Waves 1 to 3 ft.
.TONIGHT...Northwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft.
.SUNDAY...Northwest winds 10 to 15 kt backing to south 5 to
10 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.SUNDAY NIGHT...South winds 15 to 25 kt. Snow likely in the
evening, then chance of snow overnight. Waves 4 to 6 ft
occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft.
.MONDAY...Southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.MONDAY NIGHT...Southwest winds 5 to 10 kt becoming south. Waves
2 to 4 ft subsiding to 1 to 2 ft.
.TUESDAY...South winds 10 to 15 kt. Waves 1 to 2 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming southwest. Waves
1 to 3 ft.

$$

LMZ761-032215-
MAFOR 0317/
MICHIGAN NORTH 11627 11620 19627 11720 19727 12720 13710. Waves 1
to 3 feet this afternoon. Waves 1 to 3 feet building to 2 to 4
feet tonight. Waves 1 to 3 feet Sunday morning.

MICHIGAN SOUTH 12610 11710 12720 12710 11700. Waves 2 feet or
less this afternoon. Waves 1 to 3 feet building to 2 to 4 feet
tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet Sunday
morning.

$$


Boxell

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

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