351
FZUS63 KMKX 120803
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
303 AM CDT Sun May 12 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 south winds early this morning will become breezy south
winds this afternoon as a wave of low pressure around 29.6 inches
and its associated cold front moves across northern Wisconsin. The
low and cold front will then slowly move across northern Lake
Michigan tonight. Thus the winds will shift to light northwest
late tonight over the north half, while modest southwest winds
continue over the south half. The cold front will slowly move
south on Monday bringing light to modest northerly winds to the
entire lake.

Breezy northeast winds and building waves will then develop over
the south half late Monday night into Tuesday night as low
pressure passes to the south, while high pressure extends from
western Hudson Bay into Wisconsin.


LMZ261-362-364-366-563-565-567-868-121530-
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-
303 AM CDT Sun May 12 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...South winds 10 to 20 kt increasing to 30 kt. Chance of
rain showers this morning, then chance of rain showers and
thunderstorms this afternoon. Waves 1 to 2 ft building to 4 to
6 ft occasionally to 8 ft.
.TONIGHT...South winds 15 to 25 kt diminishing to 10 to 20 kt
late in the evening, then becoming southwest after midnight
becoming west 10 to 15 kt late. Chance of showers and
thunderstorms in the evening, then slight chance of showers and
thunderstorms overnight. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft.
.MONDAY...Northwest winds 10 to 15 kt becoming north. Waves 1 to
3 ft.
.MONDAY NIGHT...North winds 10 to 20 kt increasing to 15 to
25 kt. Waves 1 to 3 ft building to 3 to 5 ft.
.TUESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.TUESDAY NIGHT...North winds 15 to 25 kt becoming northeast 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft.
.THURSDAY...South winds 10 to 15 kt. Chance of showers. Waves
1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-121530-
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-
303 AM CDT Sun May 12 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...South winds 10 to 15 kt increasing to 30 kt. Waves 1 to
2 ft building to 4 to 6 ft occasionally to 8 ft.
.TONIGHT...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Slight chance of showers and thunderstorms. Waves 4 to
6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.MONDAY...Southwest winds 10 to 20 kt veering to north 10 to
15 kt. Showers likely in the afternoon. Waves 2 to 4 ft subsiding
to 1 to 3 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt increasing to 15 to
25 kt. Showers likely in the evening, then chance of showers
overnight. Waves 1 to 3 ft building to 3 to 5 ft.
.TUESDAY...North winds 15 to 25 kt. Waves 4 to 7 ft occasionally
to 9 ft building to 5 to 8 ft occasionally to 10 ft.
.TUESDAY NIGHT...North winds to 30 kt becoming northeast 15 to
25 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.WEDNESDAY...North winds 10 to 20 kt. Waves 3 to 5 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming south. Chance of
showers. Waves 1 to 3 ft.

$$

LMZ761-121530-
MAFOR 1210/
MICHIGAN NORTH 11410 11430 13440 11430 11520 11610. A chance of
showers this morning. A chance of showers and thunderstorms this
afternoon. A chance of showers and thunderstorms this evening.
Waves 1 to 3 feet building to 3 to 5 feet today. Waves 3 to 5
feet subsiding to 1 to 3 feet tonight.

MICHIGAN SOUTH 11410 11420 13430 11530 12520. Waves 1 foot or
less building to 3 to 5 feet today. Waves 3 to 5 feet subsiding
to 2 to 4 feet tonight.

$$


Gehring

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

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