Great Lakes Forecast
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000
FZUS63 KLOT 160111
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
811 PM CDT Sun Oct 15 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...Expansive high pressure of 30.5 inches over the Plains
will move across the Ohio Valley on Monday and then to the mid
Atlantic Coast Tuesday and Wednesday where it will remain through
Friday. Meanwhile, low pressure of 29.4 inches will move across
northern Manitoba Monday evening to northern Quebec Tuesday night.
A second low of of 29.6 inches will take a similar track across
northern Manitoba Wednesday to northern Quebec Thursday.

LMZ261-362-364-366-563-565-567-868-160930-
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-
811 PM CDT Sun Oct 15 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Northwest winds to 30 kt diminishing to 10 to
20 kt and becoming west. Slight chance of rain showers and
waterspouts. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3
to 5 ft.
.MONDAY...West winds 10 to 20 kt increasing to 15 to 25 kt. Waves
3 to 5 ft.
.MONDAY NIGHT...West winds 20 to 25 kt becoming southwest and
increasing to 30 kt with occasional gale force gusts to 35 kt.
Waves 3 to 5 ft building to 6 to 9 ft occasionally to 12 ft.
.TUESDAY...Southwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 6 to 9 ft occasionally to 12 ft.
.TUESDAY NIGHT...Southwest winds 15 to 25 kt increasing to 30 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Southwest winds to 30 kt increasing to gales to 40
kt. Waves 6 to 9 ft occasionally to 12 ft building to 7 to 10 ft
occasionally to 13 ft.
.WEDNESDAY NIGHT...Southwest gales to 35 kt becoming west 15 to
25 kt overnight. Waves 7 to 10 ft occasionally to 13 ft subsiding
to 4 to 7 ft occasionally to 9 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft subsiding to 1 to 3 ft.
.FRIDAY...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.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-160930-
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-
811 PM CDT Sun Oct 15 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northwest winds to 30 kt diminishing to 10 to
20 kt. Chance of rain showers and waterspouts this evening...then
slight chance of rain showers and waterspouts overnight. Waves 7
to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft occasionally
to 8 ft.
.MONDAY...West winds 10 to 20 kt. Waves 3 to 5 ft subsiding to
2 to 4 ft.
.MONDAY NIGHT...West winds 10 to 20 kt becoming southwest to
30 kt. Waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft.
.TUESDAY...Southwest winds to 30 kt. Waves 5 to 8 ft occasionally
to 10 ft.
.TUESDAY NIGHT...Southwest winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft.
.WEDNESDAY...Southwest winds to 30 kt. Waves 5 to 8 ft
occasionally to 10 ft.
.WEDNESDAY NIGHT...Southwest winds to 30 kt becoming west. Waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest 10 to
15 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.FRIDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft.

$$
LMZ761-160930-
MAFOR 1603/
MICHIGAN NORTH 10740 11730 11720 14620 12630. Waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 5 feet overnight and
continuing Monday and Monday evening.

MICHIGAN SOUTH 10740 12730 11720 14620 11630. Chance of rain
showers and waterspouts this evening. Waves 7 to 10 feet
occasionally to 13 feet subsiding to 4 to 6 feet occasionally to 8
feet overnight. Waves 3 to 5 feet Monday morning subsiding to 2
to 4 feet on Monday afternoon and continuing Monday evening.

$$

RC

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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