935
FZUS63 KMKX 131929
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
229 PM CDT Tue Aug 13 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 & variable surface winds continue over the open waters through
the remainder of today & tonight as 30.1 inch high pressure
lingers across the region. The aforementioned high will gradually
push east of the lake on Wednesday, allowing prevailing southeast
winds to become established. Wind speeds will increase from
Wednesday night through Thursday as 29.7 inch low pressure
develops over the northern Great Plains & eventually approaches
Lake Michigan. Gusts will are expected to remain well-below gale
thresholds during this period, though a combination of elevated
gusts and wave heights is likely to result in Small Craft Advisory
conditions in nearshore zones on Thursday. 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/evening could become strong to severe, with
large hail and gusty winds being the primary concerns. Wind gusts
will taper from Friday through the weekend. Additional scattered
thunderstorms are possible across the lake during this timeframe,
though coverage won`t be as widespread relative to Thursday`s
activity.

LMZ261-362-364-366-563-565-567-868-140315-
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-
229 PM CDT Tue Aug 13 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southwest winds 5 to 10 kt becoming south. Patchy fog
overnight. Waves 1 ft or less.
.WEDNESDAY...South winds less than 10 kt becoming southwest.
Waves nearly calm.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming east late
in the evening, then becoming southeast after midnight becoming
10 to 20 kt late. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 15 to 25 kt increasing to 30 kt.
Chance of showers. Waves 4 to 6 ft occasionally to 8 ft building
to 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...Southeast winds 15 to 25 kt diminishing to
10 to 20 kt. Showers with a chance of thunderstorms. Waves 4 to
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft.
.FRIDAY...Southeast winds 10 to 20 kt becoming south. Showers
likely with a chance of thunderstorms. Waves 3 to 5 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt becoming north.
Chance of showers. 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 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-140315-
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-
229 PM CDT Tue Aug 13 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds 5 to 10 kt veering to east. Waves nearly
calm.
.WEDNESDAY...East winds less than 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 15 to 25 kt increasing to 30 kt.
Showers likely in the morning, then showers with a chance of
thunderstorms in the afternoon. Waves 4 to 6 ft occasionally to
8 ft building to 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...Southeast winds 15 to 25 kt becoming south
10 to 20 kt. Showers with a chance of thunderstorms. Waves 4 to
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft.
.FRIDAY...South winds 10 to 20 kt becoming southwest. Chance of
showers and thunderstorms. Waves 3 to 5 ft.
.FRIDAY NIGHT...West winds 10 to 15 kt becoming northwest 10 to
20 kt. Chance of showers. Waves 1 to 3 ft.
.SATURDAY...Northwest winds 10 to 20 kt. Chance of showers. Waves
2 to 4 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming north. Waves 3 to
5 ft.

$$

LMZ761-140315-
MAFOR 1322/
MICHIGAN NORTH 11510 11500 14400 11400 11500. Waves 1 foot or
less.

MICHIGAN SOUTH 11800 11100 14200 11300 11210. Waves 1 foot or
less.

$$


Quigley

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

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