104
FZUS63 KMKX 260151
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
851 PM CDT Wed Sep 25 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 30.1 inches will linger over the Upper Great
Lakes region through Friday morning. Light and variable winds will
persist during this time, as the week pressure gradient over the
lake won`t force a certain wind direction for any appreciable amount
of time.

Friday, the remnants of Hurricane Helene are projected to move into
the Ohio River Valley as a post tropical cyclone with a central
pressure of 29.2 inches. The stronger pressure gradient from the
low will move over the southern end of Lake Michigan, promoting
gusty northeasterly winds during the day on Friday and overnight
into early Saturday morning. Helene is gradually expected to fill
and die out over the weekend, promoting a gradual decrease in
northeast to northerly wind Saturday into Sunday.

LMZ261-362-364-366-563-565-567-868-260930-
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-
851 PM CDT Wed Sep 25 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Southwest winds 5 to 10 kt veering to
northwest. Waves 1 to 2 ft.
.THURSDAY...Northwest winds 5 to 10 kt backing to south. Waves
1 ft or less.
.THURSDAY NIGHT...South winds 5 to 10 kt. Patchy dense fog
overnight. Waves 1 ft or less.
.FRIDAY...Southeast winds 5 to 10 kt becoming northeast 10 to
20 kt in the afternoon. Patchy dense fog in the morning. Waves
1 to 2 ft.
.FRIDAY NIGHT...Northeast winds 10 to 20 kt becoming east 10 to
15 kt. Waves 1 to 3 ft.
.SATURDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft.
.SATURDAY NIGHT...Northeast winds 10 to 20 kt diminishing to
10 to 15 kt. Waves 1 to 3 ft.
.SUNDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-260930-
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-
851 PM CDT Wed Sep 25 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...South winds 5 to 10 kt veering to northwest.
Waves 1 to 2 ft.
.THURSDAY...North winds 5 to 10 kt becoming northeast 10 to
15 kt. Waves 1 ft or less.
.THURSDAY NIGHT...Northeast winds 10 to 15 kt becoming east 10 to
20 kt. Waves 1 to 3 ft.
.FRIDAY...Northeast winds 15 to 25 kt increasing to 30 kt. Waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.FRIDAY NIGHT...Northeast winds to 30 kt. Waves 4 to 6 ft
occasionally to 8 ft.
.SATURDAY...Northeast winds 10 to 20 kt becoming north. Waves
3 to 5 ft.
.SATURDAY NIGHT...Northeast winds 10 to 20 kt diminishing to
10 to 15 kt. Waves 3 to 5 ft.
.SUNDAY...Northeast winds 10 to 20 kt becoming north. Waves 2 to
4 ft.
.MONDAY...Southeast winds 10 to 15 kt becoming south. Waves 1 to
3 ft.

$$

LMZ761-260930-
MAFOR 2604/
MICHIGAN NORTH 11510 11600 11700 14400 11300. Waves 1 foot or
less.

MICHIGAN SOUTH 11600 11700 11800 13100 12110. Waves 2 feet or
less.

$$


Sheppard

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

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