429
FZUS63 KMKX 311949
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
249 PM CDT Sun May 31 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...

Widespread gales are not anticipated through the period across the
open waters of Lake Michigan. 30.4 inch high pressure will remain
entrenched across the Hudson Bay through Monday, resulting in
generally north to northeasterly breezes. The center of the high
will build south over Lake Michigan Tuesday and Tuesday night,
leading to generally north-northeast winds over southern Lake
Michigan and light westerlies further north. Said high will
gradually shift east on Wednesday, allowing winds to trend
southerly across the entirety of the lake. 29.7 inch low pressure
will shift from the Canadian Great Plains into Ontario Wednesday
night through Thursday, resulting in increasing southwesterly
winds across the waters. Gusts between 20-25 knots will be
possible over the northern third of the lake during this time
frame. Trends will need to be monitored for isolated gale force
gusts, though the need for headlines is not anticipated at this
time.

The weather pattern will trend more active regionally Thursday night
into next weekend, with multiple chances for showers and storms
returning to the open waters. Strong storm potential remains
uncertain at this time, with trends being monitored over coming
forecasts.

LMZ261-362-364-366-563-565-567-868-010315-
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-
249 PM CDT Sun May 31 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...West winds 10 to 15 kt veering to northeast. Waves
1 ft or less.
.MONDAY...Northeast winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 2 to 4 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 5 to
10 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.TUESDAY...Northeast winds 5 to 10 kt becoming northwest 10 to
20 kt in the afternoon. Waves 1 to 3 ft.
.TUESDAY NIGHT...Northwest winds 10 to 20 kt becoming southwest
5 to 10 kt overnight. Waves 1 to 2 ft subsiding to 1 ft or less.
.WEDNESDAY...Southwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft building to 1 to 3 ft.
.WEDNESDAY NIGHT...South winds 10 to 20 kt becoming southwest.
Waves 1 to 3 ft.
.THURSDAY...Southwest winds 15 to 25 kt becoming south to 30 kt.
Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.FRIDAY...Southwest winds 15 to 25 kt. Chance of showers. Waves
3 to 5 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-010315-
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-
249 PM CDT Sun May 31 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds 10 to 15 kt becoming northeast. Waves 1 ft
or less.
.MONDAY...Northeast winds 5 to 10 kt becoming north 10 to 20 kt.
Waves 1 to 2 ft building to 1 to 3 ft.
.MONDAY NIGHT...North winds 10 to 20 kt becoming east 10 to
15 kt. Waves 2 to 4 ft.
.TUESDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Waves 2 to 4 ft.
.TUESDAY NIGHT...North winds 10 to 20 kt becoming northeast 5 to
10 kt overnight. Waves 1 to 3 ft.
.WEDNESDAY...East winds 5 to 10 kt becoming south. Waves 1 to
2 ft.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 kt becoming south.
Waves 1 to 2 ft.
.THURSDAY...Southwest winds 10 to 20 kt becoming south 15 to
25 kt. Waves 2 to 4 ft building to 3 to 5 ft.
.FRIDAY...Southwest winds 10 to 20 kt becoming south. Chance of
showers. Waves 3 to 5 ft.

$$

LMZ761-010315-
MAFOR 3122/
MICHIGAN NORTH 11610 11600 11700 12110 13120. Waves 1 foot or
less tonight. Waves 1 to 3 feet Monday.

MICHIGAN SOUTH 12810 14100 11810 11820. Waves 2 feet or less.

$$


Quigley

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

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