326
FZUS63 KMKX 180141
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
841 PM CDT Tue Sep 17 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 30.2 inches over New England and low
pressure around 29.3 inches over the northern high plains will
keep winds light through Wednesday. High pressure will gradually
weaken and drift farther east on Thursday, with the low
over the plains strengthening to 29.2 inches. This will produce
south-southeast winds Thursday into Friday. In addition, a weak
front will push southeastward across the open waters Thursday
night into Friday, bringing showers and isolated thunderstorms.
Low pressure will then slowly shift eastward toward the Great
Lakes region this weekend, with winds remaining generally
southeasterly. As low pressure approaches, additional showers and
thunderstorm chances develop, especially across the southern half
of the Lake.

LMZ261-362-364-366-563-565-567-868-180930-
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-
841 PM CDT Tue Sep 17 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Southeast winds 5 to 10 kt. Waves 1 ft or
less.
.WEDNESDAY...South winds 5 to 10 kt backing to northeast. Waves
1 ft or less.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming southeast.
Waves 1 ft or less.
.THURSDAY...South winds 10 to 15 kt. Waves 1 to 2 ft.
.THURSDAY NIGHT...Southeast winds 10 to 15 kt. Waves 1 to 2 ft.
.FRIDAY...South winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 1 to 3 ft.
.FRIDAY NIGHT...South winds 10 to 15 kt diminishing to 5 to
10 kt. Chance of showers. Waves 1 to 3 ft.
.SATURDAY...South winds 10 to 15 kt becoming southeast. Waves
1 to 2 ft.
.SUNDAY...Southeast winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of showers. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-180930-
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-
841 PM CDT Tue Sep 17 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northeast winds 5 to 10 kt veering to
southeast. Waves 1 ft or less.
.WEDNESDAY...Southeast winds 5 to 10 kt backing to northeast.
Waves 1 ft or less.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt veering to
southeast. Waves 1 ft or less.
.THURSDAY...Southeast winds 10 to 15 kt becoming south. Waves
1 to 2 ft.
.THURSDAY NIGHT...Southeast winds 10 to 15 kt. Waves 1 to 2 ft.
.FRIDAY...South winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 1 to 3 ft.
.FRIDAY NIGHT...Southeast winds 10 to 15 kt becoming south. Waves
1 to 3 ft.
.SATURDAY...Southeast winds 10 to 15 kt becoming south. Waves
1 to 2 ft.
.SUNDAY...Southeast winds 10 to 20 kt becoming south. Chance of
showers. Waves 2 to 4 ft.

$$

LMZ761-180930-
MAFOR 1804/
MICHIGAN NORTH 12300 13400 11300 11100 11200. Waves 1 foot or
less.

MICHIGAN SOUTH 11210 11310 13300 13100. Waves 1 foot or less.

$$


Gehring

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

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