Great Lakes Forecast
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000
FZUS63 KMKX 201349
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
849 AM CDT Fri Sep 20 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 30.2 inches remains nearly stationary above the
eastern states. This will feed southerly winds into the Great
Lakes ahead of a low pressure of 29.5 inches expected to develop
across the Central and Northern Plains today into Saturday and
push into the area Saturday night and Sunday. Winds will become
gusty Saturday afternoon into Saturday night. Gusts may approach
30kts. A cold front will sweep across Lake Michigan Sunday
afternoon. Look for winds to veer to the southwest then west on
Sunday, turning northwest Sunday night into Monday. Light winds
return by Monday afternoon as high pressure moves overhead.

&&

LMZ261-362-364-366-563-565-567-868-202115-
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-
849 AM CDT Fri Sep 20 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...South winds 5 to 10 kt becoming southeast.
Patchy fog through mid morning. Slight chance of showers and
thunderstorms through mid morning. Waves 1 ft or less.
.TONIGHT...Southeast winds 5 to 10 kt becoming south. Patchy fog.
Waves 1 to 2 ft.
.SATURDAY...South winds 10 to 15 kt increasing to 30 kt. Waves
1 to 2 ft building to 4 to 7 ft occasionally to 9 ft.
.SATURDAY NIGHT...South winds to 30 kt becoming southwest.
Showers with a chance of thunderstorms in the evening, then
showers with thunderstorms likely overnight. Waves 5 to 8 ft
occasionally to 10 ft.
.SUNDAY...Southwest winds to 30 kt. Chance of showers in the
morning, then chance of showers and thunderstorms in the
afternoon. Waves 4 to 7 ft occasionally to 9 ft.
.SUNDAY NIGHT...West winds 10 to 20 kt. Chance of showers. Waves
3 to 5 ft subsiding to 2 to 4 ft.
.MONDAY...Northwest winds 10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY...Southwest winds 5 to 10 kt increasing to 10 to 20 kt.
Waves 1 ft or less building to 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-202115-
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-
849 AM CDT Fri Sep 20 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...South winds 5 to 10 kt. Waves 1 to 2 ft.
.TONIGHT...Southeast winds 5 to 10 kt becoming south 10 to 20 kt.
Slight chance of showers and thunderstorms overnight. Waves 1 to
2 ft.
.SATURDAY...South winds 10 to 15 kt increasing to 30 kt. Waves
1 to 3 ft building to 4 to 7 ft occasionally to 9 ft.
.SATURDAY NIGHT...South winds to 30 kt becoming southwest. Chance
of showers and thunderstorms in the evening, then showers with
thunderstorms likely overnight. Waves 5 to 8 ft occasionally to
10 ft.
.SUNDAY...Southwest winds to 30 kt diminishing to 15 to 25 kt.
Showers with a chance of thunderstorms in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
Waves 5 to 8 ft occasionally to 10 ft.
.SUNDAY NIGHT...West winds 15 to 25 kt diminishing to 10 to
20 kt. Chance of thunderstorms. Waves 4 to 6 ft occasionally to
8 ft subsiding to 3 to 5 ft.
.MONDAY...Northwest winds 10 to 20 kt. Waves 3 to 5 ft.
.TUESDAY...West winds 5 to 10 kt becoming southwest 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ761-202115-
MAFOR 2015/
MICHIGAN NORTH 11400 14300 12400 11410. Waves 2 feet or less.

MICHIGAN SOUTH 13400 11300 12400 12410. Waves 2 feet or less this
afternoon and tonight. Waves 1 to 3 feet Saturday morning.

$$
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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