Great Lakes Forecast
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000
FZUS63 KLOT 112037
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
237 PM CST Sat Nov 11 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 30.5 inches centered over New
England will slowly shift to the east tonight through Sunday, as a
weak trough of low pressure averaging 30.1 inches and an
associated cold front cross the lake. Another area of high
pressure of 30.4 inches will build across the Great Lakes Sunday
night and Monday, then shift to the Ohio Valley and New England
through midweek, while low pressure of 29.6 inches moves across
the western Great Lakes and Ontario.

LMZ261-362-364-366-563-565-567-868-120445-
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-
237 PM CST Sat Nov 11 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southwest winds to 30 kt becoming west 10 to 20 kt
after midnight...then becoming northwest 10 to 15 kt late. A few
gale force gusts through early evening. Chance of rain and snow
this evening...then chance of rain and slight chance of snow
overnight. Waves 7 to 10 ft occasionally to 13 ft subsiding to 3
to 6 ft occasionally to 8 ft.
.SUNDAY...Northwest winds 5 to 10 kt increasing to 10 to 15 kt.
Chance of rain. Waves 2 to 4 ft subsiding to 1 to 2 ft.
.SUNDAY NIGHT...Northwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft.
.MONDAY...Northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 2 ft.
.MONDAY NIGHT...Southwest winds 5 to 10 kt increasing to 10 to
20 kt overnight. Waves 1 to 2 ft.
.TUESDAY...South winds 15 to 25 kt increasing to 30 kt. Waves
3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.TUESDAY NIGHT...South winds to 30 kt. Chance of rain showers.
Waves 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY...Southwest winds to 30 kt becoming west. Rain
showers. Waves 6 to 9 ft occasionally to 12 ft.
.THURSDAY...North winds 15 to 25 kt becoming east 10 to 15 kt in
the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-120445-
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-
237 PM CST Sat Nov 11 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds to 30 kt becoming southwest 15 to 25 kt
this evening...diminishing to 10 to 20 kt after midnight...then
becoming west 10 to 15 kt late. Chance of rain. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 3 to 5 ft.
.SUNDAY...Southwest winds 5 to 10 kt becoming northwest. Rain in
the morning...then chance of rain in the afternoon. Waves 2 to
4 ft subsiding to 1 to 2 ft.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY...Northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...Southwest winds 5 to 10 kt becoming south 10 to
20 kt overnight. Waves 1 to 2 ft.
.TUESDAY...South winds 15 to 25 kt increasing to 30 kt. Waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY NIGHT...South winds to 30 kt. Chance of rain showers.
Waves 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...Southwest winds to 30 kt becoming west. Rain
showers. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft.
.THURSDAY...Northeast winds 10 to 20 kt veering to east. Waves
3 to 5 ft subsiding to 1 to 3 ft.

$$

LMZ761-120445-
MAFOR 1122/
MICHIGAN NORTH 11446 11546 11530 11620 11710 12700 11710. Chance
of rain and snow tonight. Chance of rain Sunday. Waves 7 to 10
feet occasionally to 13 feet subsiding to 3 to 6 feet occasionally
to 8 feet tonight. Waves 2 to 4 feet Sunday.

MICHIGAN SOUTH 11440 11430 12520 11606 12506 11616. Chance of
rain tonight. Waves 6 to 9 feet occasionally to 12 feet subsiding
to 3 to 5 feet tonight. Waves 2 to 4 feet subsiding to 1 foot or
less Sunday.

$$


Rodriguez

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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