Great Lakes Forecast
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000
FZUS63 KMKX 131430
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
930 AM CDT Sat Jul 13 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...

Low pressure of 29.6 inches near the Ontario/Quebec border will
bring a front across the southern part of the lake this morning.
With the frontal passage, expect winds to switch from the
southwest to the north. Isolated showers/thunderstorms remain
possible this afternoon/evening over far southern Lake Michigan.

High pressure of 30.1 inches will develop over the region
tonight into Sunday and bring lighter southeast winds. As we head
into next week, winds increase and shift to the southwest.

LMZ261-362-364-366-563-565-567-868-132115-
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-
930 AM CDT Sat Jul 13 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Northwest winds 10 to 15 kt becoming north.
Waves 1 to 3 ft.
.TONIGHT...Northeast winds 10 to 15 kt backing to southwest.
Waves 1 to 2 ft subsiding to 1 ft or less.
.SUNDAY...South winds 5 to 10 kt becoming southwest. Waves 1 to
2 ft.
.SUNDAY NIGHT...South winds 10 to 15 kt. Waves 1 to 2 ft.
.MONDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of showers and thunderstorms. Waves 1 to 3 ft building to
2 to 4 ft.
.MONDAY NIGHT...Southwest winds 15 to 25 kt. Chance of showers
and thunderstorms. Waves 3 to 5 ft.
.TUESDAY...Southwest winds to 30 kt. Waves 4 to 6 ft occasionally
to 8 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt becoming south. Chance
of showers and thunderstorms. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-132115-
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-
930 AM CDT Sat Jul 13 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...West winds 10 to 20 kt veering to northeast
10 to 15 kt. Slight chance of showers and thunderstorms this
afternoon. Waves 1 to 3 ft.
.TONIGHT...Northeast winds 10 to 15 kt becoming east. Waves 1 to
2 ft.
.SUNDAY...East winds 5 to 10 kt becoming southeast 10 to 15 kt.
Waves 1 to 2 ft.
.SUNDAY NIGHT...Southeast winds 5 to 10 kt becoming south. Waves
1 to 2 ft.
.MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 1 to 3 ft building to 2 to 4 ft.
.MONDAY NIGHT...Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to
4 ft.
.WEDNESDAY...Southwest winds 5 to 10 kt becoming south 10 to
15 kt. Waves 1 to 2 ft.

$$

LMZ761-132115-
MAFOR 1315/
MICHIGAN NORTH 13810 11110 11100 11400 11500 11400. Waves 1 to 3
ft.

MICHIGAN SOUTH 11610 11810 12110 11100 11200 11210 11200. Waves 1
to 3 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


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