581
FZUS63 KMKX 011954
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
254 PM CDT Sat Nov 1 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...

Weak low pressure in far southeastern Lake Michigan will linger
through the evening before pushing into MI tonight. This feature
will be a focus for lingering waterspout potential across the
southern third of Lake Michigan until sunset. Otherwise, high
pressure around 30.2 inches is progged to work across the region
overnight into Sunday bringing lighter westerly winds. However a
deepen low pressure around 29.1 inches is expected to track across
manitoba and Ontario through the day Sunday this will bring
increased southwesterly winds across Lake Michigan Sunday
afternoon. As the low pressure tracks into the Hudson Bay region
winds, especially across the northern half of Lake Michigan will
continue to increase and expected to reach gale force later Sunday
afternoon and continue overnight into early Monday morning. Thus,
have upgrade to a Gale warning for the northern half of the lake.
Still cannot rule out a few gales south of the current warning
along the southwestern MI lakeshore, but confidence is not high
enough to expand that far south at this time. Otherwise, gusty
winds linger into Monday morning before easing later Monday into
Tuesday as another high pressure is progged to move across the
region.

LMZ261-362-364-366-563-565-567-868-020315-
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-
254 PM CDT Sat Nov 1 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE
SUNDAY NIGHT...

.TONIGHT...North winds 10 to 15 kt backing to west. Slight chance
of rain this evening. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.SUNDAY...Southwest winds 10 to 15 kt increasing to gales to
40 kt. Waves 1 to 2 ft building to 7 to 10 ft occasionally to
13 ft.
.SUNDAY NIGHT...Southwest gales to 40 kt. Rain likely. Waves
12 to 16 ft occasionally to 21 ft.
.MONDAY...West gales to 35 kt diminishing to 30 kt. Rain likely
in the morning. Waves 8 to 12 ft occasionally to 16 ft subsiding
to 6 to 9 ft occasionally to 12 ft.
.MONDAY NIGHT...West gales to 35 kt diminishing to 30 kt. Waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.TUESDAY...West winds 15 to 25 kt becoming southwest. Waves 3 to
5 ft.
.TUESDAY NIGHT...South winds 10 to 15 kt becoming southwest 10 to
20 kt. Waves 2 to 4 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt increasing to 15 to
25 kt. Chance of rain. Waves 3 to 5 ft.
.THURSDAY...Southwest winds 10 to 15 kt becoming south 15 to
25 kt. Waves 1 to 3 ft building to 4 to 6 ft occasionally to
8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-020315-
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-
254 PM CDT Sat Nov 1 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds 10 to 20 kt diminishing to 10 to 15 kt
late this evening, then becoming northeast 5 to 10 kt after
midnight becoming north late. Chance of rain this evening, then
slight chance of rain overnight. Waves 2 to 4 ft.
.SUNDAY...Southwest winds 5 to 10 kt increasing to 30 kt. Waves
1 to 3 ft building to 4 to 7 ft occasionally to 9 ft.
.SUNDAY NIGHT...Southwest winds to 30 kt increasing to gales to
35 kt. Chance of rain overnight. Waves 8 to 11 ft occasionally to
14 ft building to 12 to 16 ft occasionally to 21 ft.
.MONDAY...West gales to 35 kt diminishing to 30 kt. Waves 10 to
14 ft occasionally to 18 ft subsiding to 8 to 11 ft occasionally
to 14 ft.
.MONDAY NIGHT...West winds to 30 kt diminishing to 10 to 20 kt
overnight. Waves 6 to 9 ft occasionally to 12 ft.
.TUESDAY...Southwest winds 10 to 20 kt becoming south. Waves 3 to
5 ft.
.TUESDAY NIGHT...Southeast winds 10 to 20 kt becoming south.
Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.

$$

LMZ761-020315-
MAFOR 0122/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11810 11800 11700 11600
11510 11520 11540 11550. Waves 1 to 3 feet subsiding to 1 foot or
less tonight. Waves 1 foot or less building to 5 to 8 feet
Sunday.

MICHIGAN SOUTH 11820 11810 11110 11800 11500 11410 11520 11530. A
chance of rain this evening. Waves 1 to 3 feet building to 2 to 4
feet, then subsiding to 1 to 3 feet tonight. Waves 2 feet or less
building to 3 to 6 feet Sunday.

$$


Wagner

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

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