540
FZUS63 KMKX 140805
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
305 AM CDT Wed Aug 14 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...

Light and variable winds will continue over Lake Michigan early
this morning, as high pressure around 30.1 inches gradually moves
east. As the high exits southeast winds will develop.

Southeast winds will increase tonight through Thursday, as low
pressure around 29.7 inches develops over the northern Great
Plains, and approaches Lake Michigan. Gusts are expected to
remain below gale force during this period.

Two rounds of showers and thunderstorms are expected from late
Wednesday night through Thursday evening. A few storms moving
across the open waters Thursday afternoon and evening could
become strong to severe, with large hail and gusty winds being the
primary hazards.

Wind gusts will weaken Friday through the weekend. Scattered
showers and thunderstorms are possible across the lake during this
timeframe, though coverage will be less than on Thursday.

LMZ261-362-364-366-563-565-567-868-141530-
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-
305 AM CDT Wed Aug 14 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...South winds less than 10 kt becoming southwest. Patchy
fog this morning. Waves 1 ft or less.
.TONIGHT...South winds 5 to 10 kt becoming southeast. Waves 1 to
2 ft.
.THURSDAY...Southeast winds 15 to 25 kt increasing to 30 kt.
Chance of showers. Waves 2 to 4 ft building to 6 to 9 ft
occasionally to 12 ft.
.THURSDAY NIGHT...Southeast winds to 30 kt diminishing to 15 to
25 kt. Showers with a chance of thunderstorms. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.FRIDAY...South winds 10 to 20 kt. Chance of showers and
thunderstorms. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt becoming north.
Chance of showers and thunderstorms. Waves 1 to 3 ft.
.SATURDAY...North winds 10 to 20 kt. Chance of showers. Waves
1 to 3 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-141530-
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-
305 AM CDT Wed Aug 14 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...East winds less than 10 kt becoming southeast late this
morning, then increasing to 5 to 10 kt early this afternoon
backing to east late. Waves 1 ft or less.
.TONIGHT...East winds 10 to 15 kt becoming southeast 10 to 20 kt.
Slight chance of showers overnight. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 15 to 25 kt increasing to 30 kt.
Chance of showers in the morning, then showers likely in the
afternoon. Waves 3 to 5 ft building to 6 to 9 ft occasionally to
12 ft.
.THURSDAY NIGHT...Southeast winds to 30 kt becoming south 15 to
25 kt. Showers with a chance of thunderstorms. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.FRIDAY...Southwest winds 10 to 20 kt. Chance of showers and
thunderstorms. Waves 3 to 5 ft.
.FRIDAY NIGHT...West winds 10 to 20 kt becoming northwest. Chance
of showers. Waves 2 to 4 ft.
.SATURDAY...Northwest winds 10 to 20 kt. Chance of showers. Waves
3 to 5 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ761-141530-
MAFOR 1410/
MICHIGAN NORTH 12400 13500 11300 12310. Waves 1 foot or less.

MICHIGAN SOUTH 11200 12300 11200 12210 12310. Waves 2 feet or
less.

$$


Patterson

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

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