National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

628
FZUS63 KMKX 240752
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
252 AM CDT Sat Aug 24 2019

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 of 30.3 inches centered over the northern Great
Lakes early this morning will slowly slide eastward this weekend,
reaching Maine by Sunday morning. East to southeast winds today
will become primarily southeasterly Sunday as the high moves on.
Winds will be breezy at times through Sunday.

Southeast winds will pick up Monday between an approaching low and
the departing high. Winds will become westerly and breezy by mid-
week.

LMZ261-362-364-366-563-565-567-868-241515-
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-
252 AM CDT Sat Aug 24 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Southeast winds 10 to 15 kt backing to northeast. Waves
1 to 3 ft.
.TONIGHT...Northeast winds 10 to 15 kt veering to southeast 10 to
20 kt. Waves 2 to 4 ft.
.SUNDAY...Southeast winds 10 to 20 kt becoming east. Waves 2 to
4 ft.
.SUNDAY NIGHT...Southeast winds 10 to 20 kt. Waves 1 to 3 ft
building to 2 to 4 ft.
.MONDAY...Southeast winds 15 to 25 kt becoming south. Chance of
showers and thunderstorms in the afternoon. Waves 4 to 6 ft
occasionally to 8 ft.
.MONDAY NIGHT...South winds 15 to 25 kt becoming southwest.
Showers and thunderstorms likely. Waves 4 to 6 ft occasionally to
8 ft.
.TUESDAY...West winds 15 to 25 kt. Waves 3 to 5 ft subsiding to
2 to 4 ft.
.WEDNESDAY...West winds 15 to 25 kt. Waves 4 to 6 ft occasionally
to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-241515-
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-
252 AM CDT Sat Aug 24 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Southeast winds 10 to 15 kt becoming northeast. Waves
2 to 4 ft.
.TONIGHT...Northeast winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 2 to 4 ft.
.SUNDAY...Southeast winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 2 to 4 ft.
.SUNDAY NIGHT...Southeast winds 10 to 20 kt. Waves 1 to 3 ft
building to 3 to 5 ft.
.MONDAY...Southeast winds 10 to 20 kt becoming south 15 to 25 kt.
Chance of showers and thunderstorms. Waves 4 to 6 ft occasionally
to 8 ft.
.MONDAY NIGHT...South winds 15 to 25 kt becoming southwest to
30 kt. Showers and thunderstorms likely. Waves 4 to 6 ft
occasionally to 8 ft.
.TUESDAY...West winds to 30 kt diminishing to 10 to 20 kt. Waves
3 to 5 ft.
.WEDNESDAY...West winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft.

$$

LMZ761-241515-
MAFOR 2409/
MICHIGAN NORTH 11200 12310 11200 12110 11220 11320. Waves 1 to 3
ft today. Waves 2 to 4 ft tonight.

MICHIGAN SOUTH 12310 12210 12110 11210 11320. Waves 2 to 4 ft.

$$

DDV

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

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