512
FZUS63 KMKX 220143
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
843 PM CDT Fri Jun 21 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 east to northeast winds across the lake this evening will
become southerly over the southern half of the lake overnight into
Saturday as a warm front moves northward. Southern winds will
reach northward through at least the southern two-thirds of the
lake by Saturday afternoon, picking up ahead of an approaching
cold front. Low pressure of 29.6 inches will then track east
across central Lake Michigan early Saturday evening. The cold
front will quickly follow with modest west to northwest winds over
the entire lake for Sunday. Rounds of thunderstorms are expected
across the lake at times from this evening into Saturday night.
Patchy fog will be possible at times as well into Saturday,
especially across the southern half of the lake.

LMZ261-362-364-366-563-565-567-868-220915-
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 Fri Jun 21 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...North winds 10 to 15 kt becoming northeast.
Patchy fog. Showers likely with a chance of thunderstorms through
early evening, then chance of showers and thunderstorms
overnight. Waves 1 ft or less.
.SATURDAY...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Patchy fog. Showers with a chance of thunderstorms. Waves
2 to 4 ft.
.SATURDAY NIGHT...Southeast winds 15 to 25 kt veering to
northwest to 30 kt. Showers with a chance of thunderstorms in the
evening, then chance of showers and thunderstorms overnight.
Waves 2 to 4 ft.
.SUNDAY...Northwest winds to 30 kt diminishing to 10 to 20 kt in
the afternoon. Waves 2 to 4 ft.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt diminishing to 5 to
10 kt overnight. Waves 1 to 2 ft.
.MONDAY...Northwest winds 5 to 10 kt backing to southwest 10 to
15 kt. Waves 1 ft or less.
.MONDAY NIGHT...South winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft building to 1 to 3 ft.
.TUESDAY...South winds 15 to 25 kt becoming southwest. Chance of
showers and thunderstorms. Waves 3 to 5 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming north. Waves
1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-220915-
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 Fri Jun 21 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northeast winds 10 to 15 kt veering to south
5 to 10 kt. Chance of showers and thunderstorms. Areas of dense
fog overnight. Waves 1 to 2 ft.
.SATURDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Patchy dense fog in the morning. Showers likely with a chance of
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon. Waves 1 to 2 ft building to 2 to
4 ft.
.SATURDAY NIGHT...South winds 15 to 25 kt becoming west to 30 kt.
Showers with thunderstorms likely in the evening, then chance of
showers and thunderstorms overnight. Waves 3 to 5 ft.
.SUNDAY...Northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 3 to 5 ft.
.SUNDAY NIGHT...Northwest winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
.MONDAY...Northwest winds 10 to 15 kt backing to south. Waves
1 to 2 ft.
.MONDAY NIGHT...Southeast winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 2 ft building to 1 to 3 ft.
.TUESDAY...South winds 10 to 20 kt becoming southwest 15 to
25 kt. Chance of showers and thunderstorms. Waves 3 to 5 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming north. Waves
2 to 4 ft.

$$

LMZ761-220915-
MAFOR 2204/
MICHIGAN NORTH 12110 13216 12326 11436. A chance of
thunderstorms. Waves 1 foot or less overnight. Waves 1 to 3 feet
building to 2 to 4 feet Saturday. Waves 2 to 4 feet Saturday
evening.

MICHIGAN SOUTH 11200 11400 19404 11410 19414 11416 19414 12420
11436 11539. Waves 1 foot or less overnight. Waves 1 to 3 feet
building to 2 to 4 feet Saturday. Waves 2 to 4 feet Saturday
evening.

$$


DDV

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

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