Great Lakes Forecast
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160
FZUS63 KLOT 180210
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
910 PM CDT Sun Sep 17 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...Low pressure of 29.8 inches over Ontario will lift to
Hudson Bay early Monday. Meanwhile, high pressure of 30.2 inches
building over the Upper Midwest will move to Lake Superior and
northern Lake Michigan by Monday morning. Another low of 29.5
inches will meander over the Northern Plains and Canadian
Prairies Tuesday through Thursday. Low pressure will consolidate
over the Central Plains Friday and lift to Hudson Bay Saturday.

LMZ261-362-364-366-563-565-567-868-180930-
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-
910 PM CDT Sun Sep 17 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...North winds 10 to 20 kt becoming northeast.
Occasional gusts to 25 kt. Waves 3 to 5 feet building to 4 to 6
feet occasionally to 8 feet.
.MONDAY...Northeast winds 10 to 20 kt. Waves subsiding to 2 to 4
ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt becoming east. Chance
of showers overnight. Waves 2 to 4 ft.
.TUESDAY...East winds 10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY NIGHT...East winds 10 to 20 kt becoming southeast. Waves
1 to 3 ft.
.WEDNESDAY...Southeast winds 15 to 25 kt becoming south 10 to
20 kt. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...South winds 10 to 20 kt. Chance of showers.
Waves 2 to 4 ft.
.THURSDAY...South winds 10 to 20 kt. Waves 1 to 3 ft.
.FRIDAY...South winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-180930-
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-
910 PM CDT Sun Sep 17 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northwest winds 10 to 20 kt becoming
northeast. Waves 2 to 4 ft building to 3 to 5 ft.
.MONDAY...Northeast winds 10 to 20 kt. Waves 3 to 5 ft subsiding
to 2 to 4 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt becoming east. Chance
of showers. Waves 2 to 4 ft.
.TUESDAY...Southeast winds 10 to 20 kt becoming east 10 to 15 kt.
Waves subsiding to 1 to 3 ft.
.TUESDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southeast winds 15 to 25 kt becoming south 10 to
20 kt. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...South winds 10 to 20 kt. Chance of showers.
Waves 1 to 3 ft.
.THURSDAY...South winds 10 to 15 kt becoming southeast. Waves
1 to 3 ft.
.FRIDAY...Southeast winds 10 to 20 kt. Waves 2 to 4 ft.

$$
LMZ761-180930-
MAFOR 1803/
MICHIGAN NORTH 11820 15120 11120. Waves 3 to 5 feet building to 4
to 6 feet occasionally to 8 feet overnight. Waves subsiding to 2
to 4 feet Monday and Monday evening.

MICHIGAN SOUTH 11720 11820 15120. Chance of showers Monday
evening. Waves 2 to 4 feet building to 3 to 5 feet overnight.
Waves 3 to 5 feet subsiding to 2 to 4 feet Monday and Monday
evening.

$$


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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