Great Lakes Forecast
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430
FZUS63 KMKX 201400
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
900 AM CDT Sat Jul 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...

Winds will become more southerly and southwest as the morning
wears along. Rounds of showers and thunderstorms are expected
through tonight along with potential for fog at times. As a cold
front moves through the winds will shift from southerly to the
north. The modest northerly winds will continue into early next
week and drier weather is expected as high pressure of 30.2 builds
into the Northern Plains Sunday and shifts into Iowa by Tuesday.

LMZ261-362-364-366-563-565-567-868-202300-
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-
900 AM CDT Sat Jul 20 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...West winds 10 to 15 kt becoming northwest late
this morning, then diminishing to 5 to 10 kt early this afternoon
becoming north late. Chance of showers and thunderstorms. Waves
2 to 4 ft subsiding to 1 to 3 ft.
.TONIGHT...North winds 10 to 15 kt. Chance of showers and slight
chance of thunderstorms. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.SUNDAY...North winds 5 to 10 kt increasing to 10 to 15 kt. Waves
1 to 2 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt. Waves 1 to 2 ft building
to 1 to 3 ft.
.MONDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY NIGHT...North winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 1 to 2 ft.
.TUESDAY...Northwest winds 5 to 10 kt becoming west 10 to 15 kt.
Waves 1 to 2 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming southwest. Waves
1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-202300-
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-
900 AM CDT Sat Jul 20 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Southwest winds 10 to 20 kt veering to northwest
10 to 15 kt. Slight chance of showers and thunderstorms through
mid morning, then chance of showers and thunderstorms this
afternoon. Waves 2 to 4 ft.
.TONIGHT...North winds 10 to 15 kt. Chance of showers and
thunderstorms in the evening, then showers likely with a chance
of thunderstorms overnight. Waves 1 to 3 ft.
.SUNDAY...Northeast winds 10 to 15 kt becoming north. Showers
likely in the morning, then chance of showers in the afternoon.
Waves 1 to 3 ft.
.SUNDAY NIGHT...North winds 10 to 20 kt becoming northeast. Waves
2 to 4 ft.
.MONDAY...Northeast winds 10 to 20 kt becoming north 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.MONDAY NIGHT...North winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.
.TUESDAY...North winds 5 to 10 kt becoming northwest 10 to 15 kt.
Waves 1 to 3 ft.
.WEDNESDAY...Northwest winds 5 to 10 kt becoming west 10 to
15 kt. Waves 1 to 2 ft.

$$

LMZ761-202300-
MAFOR 2015/
MICHIGAN NORTH 11700 11809 11819 11810 11800 11700 11810 11800.
Chance of showers tonight. Waves 2 to 4 ft this afternoon. Waves
1 to 3 ft tonight and Sunday morning.

MICHIGAN SOUTH 11520 11509 11819 12810 11816 12116. Chance of
showers and thunderstorms this afternoon. Chance of showers and
thunderstorms this evening, then chance of thunderstorms
overnight. Waves 2 to 4 ft this afternoon. Waves 1 to 3 ft
tonight. Waves 2 to 4 ft Sunday morning.

$$


Stumpf

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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