378
FZUS63 KMKX 030915
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
315 AM CST Tue Nov 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...

Two low pressures both around 29.5 inches sit over MN and the
Central Plains this morning. They are progged to slowly congeal
over the Upper Mississippi River Valley into one system later
today/tonight and will drive gusty southerly winds across Lake
Michigan today through Wednesday. Expecting 30kt gusts across
much of the lake during his period with a window for gales across
the central third of the open waters late this morning through
the afternoon. Thus, a Gale Warning remains in effect for this
aforementioned area.

Otherwise, periods of rain and a few rumbles of thunder will
accompany the merging low pressures today through midweek before
deepening to around 29.4 inches. The low pressure will slowly
move across northern WI into the Lake Superior region by Thursday.
Will continue to see the low pressure progress east into Quebec
through the end of the week bringing more westerly then northerly
winds to Lake Michigan, but are expected to remain below gales at
this time. Then high pressure around 30.2 inches will build into
the Upper Great Lakes Region behind the departing low for the
weekend bringing lighter winds.

LMZ261-362-364-366-563-565-031630-
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-
315 AM CST Tue Nov 3 2026

TWO RIVERS WI TO MANISTEE MI NORTH...

.TODAY...South winds to 30 kt. Chance of rain. Waves 10 to 14 ft
occasionally to 18 ft.
.TONIGHT...South winds to 30 kt. Rain likely in the evening, then
chance of rain overnight. Waves 7 to 10 ft occasionally to 13 ft
subsiding to 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY...South winds to 30 kt diminishing to 15 to 25 kt.
Chance of rain. Waves 7 to 10 ft occasionally to 13 ft.
.WEDNESDAY NIGHT...Southwest winds 15 to 25 kt diminishing to
10 to 20 kt. Chance of rain. Waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.THURSDAY...Southwest winds 10 to 20 kt becoming west. Rain in
the morning, then rain likely in the afternoon. Waves 4 to 7 ft
occasionally to 9 ft.
.THURSDAY NIGHT...Northwest winds 10 to 20 kt becoming north
15 to 25 kt. Chance of rain. Waves 2 to 4 ft building to 4 to
7 ft occasionally to 9 ft.
.FRIDAY...Northeast winds to 30 kt. Chance of rain. Waves 5 to
8 ft occasionally to 10 ft.
.SATURDAY...North winds 10 to 15 kt becoming northwest. Waves
1 to 3 ft.

$$

LMZ567-669-671-868-870-872-031630-
Lake Michigan from Two Rivers to Sheboygan WI 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 Pentwater to Manistee MI 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-
315 AM CST Tue Nov 3 2026

TWO RIVERS WI TO MANISTEE MI SOUTH TO NORTH POINT LIGHT WI TO
GRAND HAVEN MI...

...GALE WARNING IN EFFECT FROM 9 AM CST THIS MORNING THROUGH THIS
AFTERNOON...

.TODAY...South winds to 30 kt. Chance of rain this afternoon.
Waves 8 to 11 ft occasionally to 14 ft building to 10 to 14 ft
occasionally to 18 ft.
.TONIGHT...South winds to 30 kt. Chance of rain in the evening,
then rain likely overnight. Waves 7 to 10 ft occasionally to
13 ft.
.WEDNESDAY...South winds to 30 kt. Chance of rain. Waves 7 to
10 ft occasionally to 13 ft.
.WEDNESDAY NIGHT...Southwest winds 15 to 25 kt. Waves 5 to 8 ft
occasionally to 10 ft.
.THURSDAY...Southwest winds 15 to 25 kt becoming west. Chance of
rain. Waves 6 to 9 ft occasionally to 12 ft.
.THURSDAY NIGHT...Northwest winds 10 to 15 kt becoming north
15 to 25 kt. Chance of rain. Waves 4 to 6 ft occasionally to
8 ft.
.FRIDAY...North winds to 30 kt. Chance of rain. Waves 7 to 10 ft
occasionally to 13 ft.
.SATURDAY...North winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 3 to 5 ft.

$$

LMZ080-673-675-777-779-874-876-878-031630-
Lake Michigan from Michigan City IN to St. Joseph MI 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 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-
315 AM CST Tue Nov 3 2026

NORTH POINT LIGHT WI TO GRAND HAVEN MI SOUTH...

.TODAY...South winds to 30 kt. Slight chance of rain this
afternoon. Waves 8 to 11 ft occasionally to 14 ft subsiding to
6 to 9 ft occasionally to 12 ft.
.TONIGHT...South winds 15 to 25 kt increasing to 30 kt. Chance of
rain in the evening, then rain likely overnight. Waves 6 to 9 ft
occasionally to 12 ft.
.WEDNESDAY...South winds to 30 kt becoming southwest 15 to 25 kt.
Chance of rain. Waves 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY NIGHT...Southwest winds 15 to 25 kt. Waves 4 to 7 ft
occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft.
.THURSDAY...Southwest winds 15 to 25 kt. Chance of rain. Waves
6 to 9 ft occasionally to 12 ft.
.THURSDAY NIGHT...West winds 10 to 15 kt becoming northwest 15 to
25 kt. Chance of rain. Waves 3 to 5 ft.
.FRIDAY...North winds to 30 kt. Chance of rain. Waves 7 to 10 ft
occasionally to 13 ft.
.SATURDAY...North winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.

$$

LMZ761-031630-
MAFOR 0311/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11446 13450 11446 11436
12446. Waves 7 to 11 feet building to 9 to 12 feet today. Waves 7
to 10 feet subsiding to 5 to 9 feet tonight.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11440 13450 11440 11430
11440 11446. Waves 7 to 11 feet building to 8 to 12 feet today.
Waves 5 to 9 feet tonight.

$$


Wagner

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

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