142
FZUS63 KMKX 141950
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
250 PM CDT Sat Jun 14 2025

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 30.3 inches along the Ontario and Quebec
border will keep winds primarily easterly to northeasterly through
the rest of the weekend. Weak low pressure around 29.9 inches in
southern Illinois will push east tonight into the Ohio River
Valley and weaken on Sunday. Chances for showers and thunderstorms
are forecast at times Monday into next week, as the Ontario high
pressure system weakens and low pressure approaches the region
from the Central Plains.

LMZ261-362-364-366-563-565-567-868-150315-
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-
250 PM CDT Sat Jun 14 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Northeast winds 10 to 20 kt becoming east 5 to 10 kt.
Slight chance of showers. Waves 1 to 3 ft.
.SUNDAY...East winds 5 to 10 kt becoming northeast. Waves 1 to
2 ft.
.SUNDAY NIGHT...Northeast winds 5 to 10 kt veering to south.
Chance of showers overnight. Waves 1 ft or less.
.MONDAY...South winds 10 to 15 kt. Chance of showers. Waves 1 to
2 ft.
.MONDAY NIGHT...South winds 10 to 15 kt. Chance of showers in the
evening, then chance of showers and thunderstorms overnight.
Waves 1 to 2 ft.
.TUESDAY...South winds 10 to 20 kt becoming southwest. Chance of
showers and thunderstorms in the morning, then chance of showers
in the afternoon. Waves 1 to 3 ft.
.TUESDAY NIGHT...Southwest winds 10 to 15 kt becoming south 5 to
10 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft.
.WEDNESDAY...Southeast winds 10 to 15 kt becoming east 10 to
20 kt. Showers likely. Waves 1 to 3 ft.
.THURSDAY...Northwest winds 10 to 20 kt. Chance of showers. Waves
1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-150315-
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-
250 PM CDT Sat Jun 14 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds 10 to 20 kt becoming east 10 to 15 kt.
Waves 1 to 3 ft.
.SUNDAY...East winds 5 to 10 kt becoming north 10 to 15 kt. Waves
1 to 2 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt veering to southeast 5 to
10 kt. Waves 1 to 2 ft.
.MONDAY...South winds 10 to 15 kt becoming southeast. Waves 1 to
2 ft.
.MONDAY NIGHT...Southeast winds 5 to 10 kt becoming south 10 to
15 kt. Waves 1 to 2 ft.
.TUESDAY...South winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 1 to 3 ft.
.TUESDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Chance of showers and thunderstorms. Waves 1 to 3 ft.
.WEDNESDAY...South winds 10 to 20 kt becoming southwest. Showers
likely with a chance of thunderstorms. Waves 1 to 3 ft.
.THURSDAY...West winds 10 to 20 kt becoming northwest. Waves 2 to
4 ft.

$$

LMZ761-150315-
MAFOR 1422/
MICHIGAN NORTH 13110 11100 12200 12100. A chance of showers early
this evening. Waves 2 feet or less.

MICHIGAN SOUTH 12810 12110 12200 11100 11810. Waves 1 to 3 feet
tonight. Waves 2 feet or less Sunday.

$$
Wood

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

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