Great Lakes Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
733
FZUS63 KMKX 110150
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
850 PM CDT Fri May 10 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 over northeast Wisconsin will
move across northern Lake Michigan overnight, then deepen slightly
and slow down over Lake Huron on Saturday. It will drag a cold
front across the lake into the overnight hours, and bring showers
and a few thunderstorms with it. Modest south to southwest winds
will shift to northwest with the frontal passage and continue
through Saturday. Weak high pressure around 29.9 inches will then
move across the lake Saturday evening, with south winds returning
and becoming breezy after it passes for Sunday.

LMZ261-362-364-366-563-565-567-868-110930-
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-
850 PM CDT Fri May 10 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 10 to 20 kt veering to northwest.
Rain showers through early evening, then scattered rain showers
overnight. Waves 2 to 4 ft.
.SATURDAY...Northwest winds 10 to 20 kt becoming north. Scattered
rain showers in the morning. Waves 2 to 4 ft.
.SATURDAY NIGHT...North winds 10 to 15 kt backing to southwest.
Waves 1 to 3 ft subsiding to 1 ft or less.
.SUNDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.SUNDAY NIGHT...Southwest winds 10 to 20 kt becoming west 10 to
15 kt. Chance of rain showers and thunderstorms in the evening,
then chance of rain showers overnight. Waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft.
.MONDAY...North winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...Northeast winds 15 to 25 kt becoming north. Waves
2 to 4 ft.
.TUESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-110930-
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-
850 PM CDT Fri May 10 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...South winds 10 to 20 kt veering to west.
Showers through early evening, then scattered showers overnight.
Waves 2 to 4 ft.
.SATURDAY...Northwest winds 10 to 20 kt becoming north. Waves
3 to 5 ft.
.SATURDAY NIGHT...West winds 10 to 15 kt becoming southwest 5 to
10 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.SUNDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.SUNDAY NIGHT...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Showers likely with a chance of thunderstorms in the
evening, then chance of showers and thunderstorms overnight.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
.MONDAY...West winds 10 to 15 kt becoming north 10 to 20 kt.
Chance of showers. Waves 2 to 4 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt increasing to 15 to
25 kt. Chance of rain showers. Waves 3 to 5 ft.
.TUESDAY...Northeast winds 15 to 25 kt becoming north. Waves 3 to
5 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt becoming north. Waves
2 to 4 ft.

$$

LMZ761-110930-
MAFOR 1104/
MICHIGAN NORTH 11526 11710 19716 11720 19726 13720 11810 11710.
Waves 1 to 3 feet overnight and Saturday. Waves 2 feet or less
Saturday evening.

MICHIGAN SOUTH 11526 11620 19626 11720 12730 11820 11710 11500.
Waves 1 to 3 feet overnight. Waves 2 to 4 feet Saturday. Waves 1
to 3 feet Saturday evening.

$$
Wood

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

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