324
FZUS63 KMKX 150210
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
910 PM 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...

High pressure of 30.1 inches continues to push east and exit the
Upper Great Lakes Region. Southeast winds are expected following
the departure of the high late this afternoon and into tonight.

These southeast winds will increase in time overnight into
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 but may
approach 30 knots in isolated spots, mainly over the northern half
of the open waters.

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.

LMZ261-362-364-366-563-565-567-868-150915-
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-
910 PM CDT Wed Aug 14 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Southeast winds 5 to 10 kt increasing to 10 to
15 kt. Waves 1 to 2 ft.
.THURSDAY...South winds 10 to 20 kt becoming southeast to 30 kt.
Chance of showers in the morning, then showers and slight chance
of thunderstorms in the afternoon. Waves 1 to 3 ft building to
6 to 9 ft occasionally to 12 ft.
.THURSDAY NIGHT...Southeast winds to 30 kt becoming south.
Showers likely with a chance of thunderstorms. Waves 6 to 9 ft
occasionally to 12 ft.
.FRIDAY...South winds 15 to 25 kt becoming southwest 10 to 20 kt.
Chance of showers and thunderstorms in the morning, then showers
likely with a chance of thunderstorms in the afternoon. Waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt. Chance of showers
and thunderstorms in the evening, then chance of showers
overnight. Waves 1 to 3 ft.
.SATURDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY...North winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-150915-
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-
910 PM CDT Wed Aug 14 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...East winds 10 to 15 kt becoming southeast
10 to 20 kt. Chance of showers overnight. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 15 to 25 kt increasing to 30 kt.
Showers likely in the morning, then chance of showers and
thunderstorms in the afternoon. Waves 2 to 4 ft building to 6 to
9 ft occasionally to 12 ft.
.THURSDAY NIGHT...Southeast winds to 30 kt becoming south 10 to
20 kt. Chance of showers and thunderstorms in the evening, then
showers likely with a chance of thunderstorms overnight. Waves
6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft
occasionally to 8 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 and thunderstorms in the evening. Waves 2 to 4 ft.
.SATURDAY...Northwest winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.
.MONDAY...North winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ761-150915-
MAFOR 1504/
MICHIGAN NORTH 11300 11310 11320 11430 11446 13346. A chance of
thunderstorms Thursday evening. Waves 2 feet or less overnight.
Waves 1 to 3 feet building to 6 to 9 feet Thursday. Waves 5 to 9
feet Thursday evening.

MICHIGAN SOUTH 11310 11320 11330 12346 12340 11346. A chance of
thunderstorms Thursday afternoon and Thursday evening. Waves 2
feet or less overnight. Waves 2 to 4 feet building to 5 to 9 feet
Thursday. Waves 5 to 8 feet Thursday evening.

$$


Sheppard

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

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