613
FZUS63 KMKX 122036
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
Issued by National Weather Service Green Bay WI
236 PM CST Tue Nov 12 2024

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 around 30.4 inches currently centered over Lake Huron
will shift eastward through tonight into southern Quebec. Light
easterly to southeasterly winds will slowly increase through late
today.

Winds shift to become southeasterly tonight into early Wednesday
morning as low pressure deepens to 29.7 inches in the central
Plains and moves towards the Mississippi Valley. South to
southeast gusts around 30 knots are expected as this system
approaches late tonight through Wednesday evening, but gales are
not expected at this time. Low pressure then lifts into Lake
Michigan on Thursday, bringing a cold front and shifting winds
northwesterly by Thursday night. High pressure with light and
variable winds returns on Friday.

Winds will become southerly on Saturday, remaining southerly through
Sunday, and potentially increasing to near 25 knots on Sunday as
low pressure deepens to near 29.4 inches across southern Manitoba.

LMZ261-362-364-366-563-565-567-868-130430-
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-
236 PM CST Tue Nov 12 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southeast winds 10 to 20 kt becoming south 15 to
25 kt. Waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft.
.WEDNESDAY...South winds 15 to 25 kt becoming southeast to 30 kt.
Waves 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY NIGHT...Southeast winds 15 to 25 kt diminishing to
10 to 20 kt. Rain. Waves 5 to 8 ft occasionally to 10 ft
subsiding to 3 to 5 ft.
.THURSDAY...East winds 10 to 20 kt becoming northeast. Rain.
Waves 3 to 5 ft subsiding to 2 to 4 ft.
.THURSDAY NIGHT...Northeast winds 10 to 20 kt diminishing to 5 to
10 kt overnight. Chance of rain. Waves 1 to 3 ft.
.FRIDAY...North winds 5 to 10 kt becoming northwest. Chance of
rain. Waves 1 to 2 ft.
.FRIDAY NIGHT...North winds 5 to 10 kt becoming northwest. Waves
1 to 2 ft.
.SATURDAY...South winds 10 to 20 kt. Waves 1 to 2 ft building to
2 to 4 ft.
.SUNDAY...South winds 15 to 25 kt becoming southwest. Chance of
rain. Waves 4 to 7 ft occasionally to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-130430-
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-
236 PM CST Tue Nov 12 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southeast 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.
.WEDNESDAY...Southeast winds 15 to 25 kt. Waves 6 to 9 ft
occasionally to 12 ft.
.WEDNESDAY NIGHT...Southeast winds 15 to 25 kt becoming south
10 to 20 kt. Rain. Waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 6 ft occasionally to 8 ft.
.THURSDAY...West winds 10 to 20 kt becoming northwest. Rain.
Waves 3 to 5 ft.
.THURSDAY NIGHT...Northwest winds 10 to 20 kt diminishing to
10 to 15 kt. Chance of rain. Waves 2 to 4 ft.
.FRIDAY...North winds 5 to 10 kt. Chance of rain. Waves 1 to
3 ft.
.FRIDAY NIGHT...Northeast winds 5 to 10 kt becoming east. Waves
1 to 2 ft.
.SATURDAY...Southeast winds 10 to 20 kt becoming south. Waves
1 to 3 ft building to 2 to 4 ft.
.SUNDAY...South winds 15 to 25 kt becoming southwest. Chance of
rain. Waves 5 to 8 ft occasionally to 10 ft.

$$

LMZ761-130430-
MAFOR 1223/
MICHIGAN NORTH 11320 12330 12430 13330. Waves 1 to 3 feet
building to 4 to 7 feet tonight. Waves 5 to 8 feet Wednesday.

MICHIGAN SOUTH 11320 15330 11330. Waves 1 to 3 feet building to 4
to 7 feet tonight. Waves 5 to 8 feet Wednesday.

$$


WFO MKX

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

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