535
FZUS63 KMKX 082012
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
312 PM CDT Mon Jun 8 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...

Warm and humid air brought from the south along a warm front over
the cool lake into the evening and overnight will bring the
potential for fog over Lake Michigan, primarily over the northern
half Monday night into Tuesday morning, with increasing fog
potential in the north Tuesday evening. Showers and thunderstorms
are expected to increase tonight over the southern portions of the
lake.

Continued southeasterly winds over the lake overnight and into
Tuesday morning ahead of an MCV and a surface low pressure of
29.88 inches, with winds shifting southwesterly in the south and
northerly in the north. Into Wednesday, westerly winds alongside a
pressure decrease will bring gusty conditions with the potential
for showers/thunderstorms over southern Lake Michiagn Wednesday
afternoon and evening.

LMZ261-362-364-366-563-565-567-868-090315-
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-
312 PM CDT Mon Jun 8 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Northeast winds 10 to 20 kt becoming southeast 10 to
15 kt. Chance of showers and thunderstorms this evening, then
showers likely with slight chance of thunderstorms overnight.
Patchy fog overnight. Waves 1 to 3 ft.
.TUESDAY...East winds 10 to 15 kt backing to north 10 to 20 kt.
Patchy fog. Showers likely with slight chance of thunderstorms in
the morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Waves 1 to 3 ft.
.TUESDAY NIGHT...North winds 10 to 15 kt backing to west. Patchy
dense fog in the evening. Waves 1 to 2 ft.
.WEDNESDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY NIGHT...South winds 15 to 25 kt becoming southwest to
30 kt. Showers likely with a chance of thunderstorms. Waves 4 to
7 ft occasionally to 9 ft.
.THURSDAY...Southwest winds 15 to 25 kt becoming south. Waves
4 to 6 ft occasionally to 8 ft.
.THURSDAY NIGHT...South winds to 30 kt becoming west. Showers
likely with a chance of thunderstorms. Waves 4 to 6 ft
occasionally to 8 ft.
.FRIDAY...Southwest winds 15 to 25 kt increasing to 30 kt. Waves
3 to 5 ft.
.SATURDAY...Southwest winds 15 to 25 kt. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-090315-
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-
312 PM CDT Mon Jun 8 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southeast winds 10 to 15 kt becoming south. Showers
likely with a chance of thunderstorms this evening, then showers
likely with slight chance of thunderstorms overnight. Patchy fog
overnight. Waves 1 to 3 ft.
.TUESDAY...South winds 10 to 15 kt veering to west. Patchy fog.
Chance of showers and slight chance of thunderstorms in the
morning, then slight chance of showers in the afternoon. Waves
1 to 3 ft.
.TUESDAY NIGHT...Northwest winds 5 to 10 kt backing to southwest.
Patchy dense fog in the evening. Waves 1 to 2 ft.
.WEDNESDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY NIGHT...South winds 15 to 25 kt becoming southwest.
Chance of showers and thunderstorms. Waves 4 to 7 ft occasionally
to 9 ft.
.THURSDAY...Southwest winds 10 to 20 kt becoming south 15 to
25 kt. Waves 4 to 6 ft occasionally to 8 ft.
.THURSDAY NIGHT...Southwest winds to 30 kt becoming west 15 to
25 kt. Showers with a chance of thunderstorms. Waves 4 to 6 ft
occasionally to 8 ft.
.FRIDAY...West winds 10 to 20 kt becoming southwest. Waves 3 to
5 ft.
.SATURDAY...Southwest winds 10 to 20 kt. Waves 3 to 5 ft.

$$

LMZ761-090315-
MAFOR 0822/
MICHIGAN NORTH 11120 11226 11326 11316 12216 11120 11810. A
chance of thunderstorms this evening. Waves 2 feet or less.

MICHIGAN SOUTH 11310 13316 12410 11510 11610. A chance of
thunderstorms this evening. Waves 1 to 3 feet.

$$


CMiller

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

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