402
FZUS63 KMKX 120143
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
843 PM CDT Sun Aug 11 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 the mid-Mississippi River
Valley will slowly meander eastward into the Great Lakes region
through the first half of the week. This will bring lighter and
more variable winds to Lake Michigan through midweek before
becoming southerly and increasing for the second half of the
week.

Low pressure around 29.7 inches will develop over the Great Plains
by Wednesday, tracking northeastward into Wisconsin late this
week and deepening to 29.6 inches. This will lead to accelerating
south to southeast winds Thursday and Friday, with shower and
thunderstorm chances across the lake.

LMZ261-362-364-366-563-565-567-868-120915-
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-
843 PM CDT Sun Aug 11 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Southwest winds 10 to 15 kt becoming west.
Waves 1 to 2 ft.
.MONDAY...West winds 10 to 15 kt becoming southwest. Waves 1 to
2 ft.
.MONDAY NIGHT...Southwest winds 5 to 10 kt veering to northeast.
Waves 1 ft or less.
.TUESDAY...East winds 5 to 10 kt veering to southwest. Waves
nearly calm.
.TUESDAY NIGHT...Southwest winds 5 to 10 kt becoming southeast.
Waves nearly calm.
.WEDNESDAY...Southeast winds 5 to 10 kt becoming south. Waves
1 ft or less.
.WEDNESDAY NIGHT...East winds 5 to 10 kt becoming southeast.
Waves 1 ft or less building to 1 to 2 ft.
.THURSDAY...Southeast winds 10 to 20 kt. Waves 2 to 4 ft.
.FRIDAY...Southeast winds 10 to 20 kt. Chance of showers. Waves
2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-120915-
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-
843 PM CDT Sun Aug 11 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...West winds 10 to 15 kt. Waves 1 to 3 ft.
.MONDAY...West winds 10 to 15 kt becoming southwest 5 to 10 kt.
Waves 1 to 2 ft.
.MONDAY NIGHT...Southwest winds 5 to 10 kt becoming west. Waves
1 to 2 ft.
.TUESDAY...Northwest winds 5 to 10 kt becoming west. Waves 1 ft
or less.
.TUESDAY NIGHT...Northeast winds 5 to 10 kt becoming east. Waves
nearly calm.
.WEDNESDAY...East winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 ft or less.
.WEDNESDAY NIGHT...East winds 10 to 15 kt becoming southeast
10 to 20 kt. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 10 to 20 kt. Chance of showers. Waves
2 to 4 ft.
.FRIDAY...South winds 10 to 20 kt. Chance of showers. Waves 2 to
4 ft.

$$

LMZ761-120915-
MAFOR 1204/
MICHIGAN NORTH 11510 12610 11600 11610 11510 11500 11600. Waves 2
feet or less.

MICHIGAN SOUTH 13610 12600 13500. Waves 2 feet or less.

$$


Cronce

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

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