Great Lakes Forecast
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000
FZUS63 KLOT 132005
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
305 PM CDT Sun Aug 13 2017

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 over southern Lake
Michigan will continue spreading eastward to New England by
Monday. Meanwhile, weak low pressure of 29.7 inches over the
Dakotas will move to southern Minnesota. Another low of 29.5
inches will develop over eastern Colorado Tuesday and track to
western Lake Superior Wednesday night. This low pressure area will
then move into Ontario as an associated cold front sweeps across
Lake Michigan Thursday afternoon and evening.

LMZ261-362-364-366-563-565-140315-
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-
305 PM CDT Sun Aug 13 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

.TONIGHT...Southwest winds 10 to 15 kt becoming south. Waves 1 to
3 ft.
.MONDAY...South winds 5 to 10 kt becoming southwest 10 to 15 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...Southwest winds 5 to 10 kt veering to north.
Waves 1 ft or less.
.TUESDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 ft or less.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming east. Waves
1 ft or less.
.WEDNESDAY...East winds 10 to 20 kt becoming southeast. Chance of
showers in the afternoon. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Southeast winds 10 to 20 kt. Showers likely.
Waves 2 to 4 ft.
.THURSDAY...South winds 10 to 20 kt becoming southwest 10 to
15 kt. Chance of showers. Waves 1 to 3 ft.
.FRIDAY...Northwest winds 10 to 20 kt becoming west 10 to 15 kt.
Waves 1 to 2 ft.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-140315-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 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 Pentwater to Manistee MI 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-
305 PM CDT Sun Aug 13 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

.TONIGHT...Southeast winds 10 to 15 kt. Waves 1 ft or less.
.MONDAY...South winds 5 to 10 kt becoming southeast 10 to 15 kt.
Waves 1 ft or less.
.MONDAY NIGHT...East winds 5 to 10 kt becoming southeast. Chance
of showers. Waves nearly calm.
.TUESDAY...Southeast winds 10 to 15 kt backing to northeast.
Waves 1 ft or less.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming southeast.
Waves 1 to 2 ft.
.WEDNESDAY...Southeast winds 10 to 20 kt becoming south. Chance
of showers. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...South winds 10 to 20 kt. Showers likely. Waves
1 to 3 ft.
.THURSDAY...Southwest winds 10 to 20 kt becoming west 10 to
15 kt. Chance of showers. Waves 1 to 3 ft.
.FRIDAY...Northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 3 ft.

$$

LMZ761-140315-
MAFOR 1321/
MICHIGAN NORTH 12510 13410 12400 11510. Waves 1 to 3 feet.

MICHIGAN SOUTH 11410 12210 12310 13400. Waves 1 foot or less.

$$


Lenning

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

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



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