Great Lakes Forecast
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000
FZUS63 KLOT 100138
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
838 PM CDT Mon Oct 9 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 30.3 inches will move across the
plains this evening and tonight and then move across the upper
lakes Tuesday and Tuesday night. Weak low pressure of 29.9 inches
will move across the southern lakes region Tuesday night and
Wednesday. A broad high pressure ridge averaging 30.1 inches will
linger over the eastern lakes through Friday.

LMZ261-362-364-366-563-565-567-868-100930-
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-
838 PM CDT Mon Oct 9 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...North winds 15 to 25 kt. Waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY...Northeast winds 20 to 25 kt. Waves 4 to 6 ft
occasionally to 8 ft.
.TUESDAY NIGHT...East winds 15 to 25 kt. Chance of showers. Waves
4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft overnight.
.WEDNESDAY...East winds 15 to 25 kt. Chance of showers in the
morning. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...Southeast winds 15 to 25 kt. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 10 to 15 kt. Waves 1 to 2 ft.
.THURSDAY NIGHT...Southwest winds 10 to 15 kt. Waves 1 to 3 ft.
.FRIDAY...Southwest winds 15 to 25 kt. Waves 2 to 4 ft.
.SATURDAY...Northeast winds to 30 kt. Chance of showers. Waves
3 to 5 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-100930-
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-
838 PM CDT Mon Oct 9 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northeast winds 10 to 20 kt increasing to 15
to 25 kt. Waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft.
.TUESDAY...Northeast winds 15 to 25 kt increasing to 30 kt.
Slight chance of showers in the afternoon. Waves 4 to 7 ft
occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft.
.TUESDAY NIGHT...East winds to 30 kt with a few gale force gusts
to 35 kt. Showers. Waves 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...Northeast winds to 30 kt. Showers likely in the
morning. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft in the afternoon.
.WEDNESDAY NIGHT...East winds 15 to 25 kt. Waves 2 to 4 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming south. Waves
1 to 2 ft.
.THURSDAY NIGHT...South winds 10 to 15 kt. Waves 1 to 2 ft.
.FRIDAY...South winds 15 to 25 kt. Waves 1 to 2 ft building to
2 to 4 ft in the afternoon.
.SATURDAY...West winds 15 to 25 kt veering to north to 30 kt.
Showers likely. Waves 2 to 4 ft.

$$
LMZ761-100930-
MAFOR 1003/
MICHIGAN NORTH 13830 14130 11130. Chance of showers Tuesday
evening. Waves 3 to 5 feet building to 4 to 6 feet occasionally
to 8 feet tonight. Waves 4 to 6 occasionally to 8 feet Tuesday
and Tuesday evening.

MICHIGAN SOUTH 12120 13130 12140 11246. Waves 2 to 4 feet
building to 4 to 7 feet occasionally to 9 feet overnight. Waves
building to 5 to 8 feet occasionally to 10 feet Tuesday and
continuing Tuesday evening.

$$

BMD

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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