Great Lakes Forecast
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FZUS63 KMKX 190756
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
256 AM CDT Mon Aug 19 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 30.0 inches will move across the lake today
bringing light winds through tonight. South winds may reach 15 to
20 knots across the north. South winds will increase somewhat
across the south half on Tuesday as the high pulls way and low
pressure of 29.8 inches moves over Minnesota. The low will move
across the lake Tuesday night bringing lighter winds. Gusty north
winds are expected on Wednesday into Wednesday night ahead of high
pressure of 30.1 inches in the northern plains. They will remain
somewhat elevated into Thursday.

LMZ261-362-364-366-563-565-567-868-191515-
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-
256 AM CDT Mon Aug 19 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Northwest winds 5 to 10 kt becoming west late this
morning, then becoming southwest 10 to 20 kt this afternoon.
Waves 1 to 3 ft.
.TONIGHT...Southwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.TUESDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.TUESDAY NIGHT...Southwest winds 10 to 20 kt becoming west.
Chance of showers and thunderstorms. Waves 1 to 3 ft.
.WEDNESDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt. Waves 1 to 3 ft.
.THURSDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.
.FRIDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-191515-
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-
256 AM CDT Mon Aug 19 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...North winds 5 to 10 kt becoming northeast 10 to 15 kt.
Waves 1 to 3 ft subsiding to 1 to 2 ft.
.TONIGHT...Northeast winds 5 to 10 kt becoming southeast. Waves
1 to 2 ft.
.TUESDAY...Southeast winds 5 to 10 kt becoming south 10 to 15 kt.
Waves 1 to 3 ft.
.TUESDAY NIGHT...South winds 10 to 15 kt becoming west 10 to
20 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming north. Waves
2 to 4 ft.
.WEDNESDAY NIGHT...North winds 10 to 20 kt becoming northeast
5 to 10 kt. Waves 2 to 4 ft.
.THURSDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Waves 1 to 3 ft.
.FRIDAY...East winds 10 to 15 kt becoming northeast. Waves 1 to
3 ft.

$$

LMZ761-191515-
MAFOR 1909/
MICHIGAN NORTH 11710 11700 11620 14520 11520. Waves 2 to 4 ft
today. Waves 1 to 3 ft tonight.

MICHIGAN SOUTH 11810 11800 11100 12110 12200 11300. Waves 2 to 4
ft subsiding to 1 ft or less today. Waves 1 ft or less tonight.

$$


Marquardt

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

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


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