064
FZUS63 KMKX 070151
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
851 PM CDT Wed May 6 2026

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...

High pressure around 30.0 inches will continue to work south-
southeastward across the central Plains this evening with light
and variable winds continuing over Lake Michigan. South to
southwesterly winds will develop for Thursday and continue
through Saturday as the high pressure slides further southeast
across the Lower Mississippi River Valley. However, winds will
then increase ahead of a developing low pressure around 29.5
inches tracking north of the Great Lakes into Quebec for Saturday
before dragging a cold front southward across Lake Michigan later
in the day. Winds shift to the north-northwest behind the front
for Sunday while high pressure around 30.2 inches builds down
across the region into the start of next week.

LMZ261-362-364-366-563-565-567-868-070915-
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-
851 PM CDT Wed May 6 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Southwest winds 5 to 10 kt becoming west.
Waves 1 to 2 ft.
.THURSDAY...West winds 5 to 10 kt becoming southwest 10 to 15 kt
late in the morning, then increasing to 10 to 20 kt early in the
afternoon becoming southwest 10 to 20 kt late. Isolated rain
showers in the afternoon. Waves 1 to 3 ft.
.THURSDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
.FRIDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 1 to 3 ft.
.FRIDAY NIGHT...South winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY...Southwest winds 15 to 25 kt. Waves 3 to 5 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt becoming north 5 to
10 kt. Waves 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 15 kt becoming north 10 to 20 kt.
Waves 1 to 2 ft.
.MONDAY...Northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-070915-
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-
851 PM CDT Wed May 6 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Southwest winds 10 to 15 kt becoming west 5 to
10 kt. Waves 1 to 2 ft.
.THURSDAY...West winds 5 to 10 kt backing to south 10 to 15 kt.
Isolated rain showers in the afternoon. Waves 1 to 3 ft.
.THURSDAY NIGHT...South winds 10 to 15 kt becoming southwest 5 to
10 kt. Waves 1 to 3 ft.
.FRIDAY...Southwest winds 10 to 15 kt becoming south. Waves 1 to
3 ft.
.FRIDAY NIGHT...South winds 10 to 15 kt becoming southwest 10 to
20 kt. Waves 2 to 4 ft.
.SATURDAY...Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY NIGHT...West winds 10 to 20 kt becoming north 5 to
10 kt. Chance of rain showers. Waves 1 to 3 ft.
.SUNDAY...North winds 10 to 15 kt increasing to 15 to 25 kt.
Chance of rain showers. Waves 2 to 4 ft.
.MONDAY...North winds 10 to 15 kt becoming northeast 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ761-070915-
MAFOR 0704/
MICHIGAN NORTH 13600 11510 13520 11510. Waves 2 feet or less.

MICHIGAN SOUTH 11600 11610 11600 11610 11510 13410. Waves 2 feet
or less.

$$


Sheppard

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

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