658
FZUS63 KMKX 280810
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
310 AM CDT Sun Apr 28 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...

Low pressure around 29.7 inches drifts northeastward through Quebec
early this morning. Its cold front has already crossed two thirds of
the lake, and will stall near the southern end of the lake today as
the warm front of an approaching low pressure system collides with
it. Thus, north to northeast winds are expected across the majority
of Lake Michigan today, with the fastest winds (up to 30 kts) in
central Lake Michigan. Expecting light and variable winds over the
southern third of the lake (near the stalled front) and south winds
at the far southern tip of the lake.

Modest east to southeast winds will then develop over all of the
lake tonight as the stalled front moves north as a warm front. Brisk
east winds, possibly reaching gale force, are expected over the
northern tip of the lake late tonight into Monday morning. Breezy
south winds will develop over the remainder of the lake on Monday.

Areas of fog may form over the lake today, especially the southern
half. Several rounds of showers and thunderstorms are expected
between now and Monday.


LMZ261-362-364-366-563-565-567-868-281530-
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-
310 AM CDT Sun Apr 28 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...North winds 15 to 25 kt becoming northeast. Patchy fog
this morning. Chance of rain showers this morning, then rain
showers and slight chance of thunderstorms this afternoon. Waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.TONIGHT...Northeast winds 15 to 25 kt becoming east to 30 kt,
with gales to 40 kt possible over the far northern tip of the
lake. Rain showers and slight chance of thunderstorms in the
evening, then rain showers with a chance of thunderstorms
overnight. Waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft.
.MONDAY...Southeast winds to 30 kts, with gales to 40 kt
possible near the far northern tip of the lake. Diminishing to 30
kt early in the afternoon, becoming south 15 to 25 kt late. Rain
showers in the morning, then chance of rain showers in the
afternoon. Waves 7 to 10 ft occasionally to 13 ft subsiding to 4
to 6 ft occasionally to 8 ft.
.MONDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.TUESDAY...Southwest winds 10 to 20 kt. Waves 1 to 3 ft.
.TUESDAY NIGHT...South winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 10 to 20 kt. Chance of rain showers.
Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-281530-
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-
310 AM CDT Sun Apr 28 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Southeast winds 15 to 25 kt. Areas of dense fog this
morning. Rain showers likely with a chance of thunderstorms this
morning, then chance of rain showers and slight chance of
thunderstorms this afternoon. Waves 2 to 4 ft building to 4 to
6 ft occasionally to 8 ft.
.TONIGHT...South winds 10 to 20 kt becoming southeast. Chance of
rain showers and thunderstorms in the evening, then rain showers
with a chance of thunderstorms overnight. Waves 3 to 5 ft
subsiding to 2 to 4 ft.
.MONDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Chance of showers and thunderstorms in the morning, then chance
of showers in the afternoon. Waves 4 to 6 ft occasionally to
8 ft.
.MONDAY NIGHT...Southwest winds 10 to 20 kt becoming west 10 to
15 kt. Chance of showers in the evening. Waves 3 to 5 ft
subsiding to 2 to 4 ft.
.TUESDAY...West winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 1 to 3 ft.
.TUESDAY NIGHT...Southeast winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt becoming south. Waves
2 to 4 ft.
.THURSDAY...Southeast winds 10 to 20 kt becoming south. Chance of
showers. Waves 1 to 3 ft.

$$

LMZ761-281530-
MAFOR 2810/
MICHIGAN NORTH 12830 13136 11236 11246 11246. A chance of
thunderstorms overnight. Waves 1 to 3 feet building to 3 to 6 feet
today. Waves 3 to 5 feet building to 4 to 7 feet tonight.

MICHIGAN SOUTH 11536 19534 11236 19234 12230 11420 11210 11310
11326. A chance of thunderstorms this morning and tonight. Waves
1 to 3 feet building to 3 to 6 feet today. Waves 3 to 5 feet
subsiding to 1 to 3 feet tonight.

$$


Sheppard

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

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