Great Lakes Forecast
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000
FZUS63 KLOT 111446
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
846 AM CST Sun Feb 11 2018

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 the Ohio Valley
will move northeast into southern Quebec tonight and merge with
another low pressure of 29.7 inches moving across Ontario today.
Strong high pressure of 30.8 inches will build across the
northern Plains tonight and then across the Great Lakes region
Monday night. Low pressure of 29.5 inches is expected to move
across the upper Great Lakes Wednesday night...with a trailing
cold front moving across the lake Thursday.

LMZ261-362-364-366-563-565-567-868-112230-
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-
846 AM CST Sun Feb 11 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...West winds 10 to 15 kt increasing to 30 kt late.
Snow this morning...then a chance of snow this afternoon. Waves 1
to 3 ft building to 3 to 5 ft.
.TONIGHT...West winds to 30 kt becoming northwest 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.MONDAY...Northwest winds 15 to 25 kt becoming west 10 to 15 kt.
Waves 3 to 5 ft subsiding to 1 to 3 ft.
.MONDAY NIGHT...West winds 10 to 15 kt becoming southwest 10 to
20 kt. Waves 1 to 3 ft.
.TUESDAY...South winds 15 to 25 kt increasing to 30 kt. Waves 2
to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.TUESDAY NIGHT...Southwest winds to 30 kt. Waves 5 to 8 ft
occasionally to 10 ft.
.WEDNESDAY...Southwest winds to 30 kt. Waves 5 to 8 ft
occasionally to 10 ft.
.THURSDAY...West winds 15 to 25 kt becoming north to 30 kt.
Waves 4 to 7 ft occasionally to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-112230-
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-
846 AM CST Sun Feb 11 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Northwest winds 10 to 20 kt becoming west 15 to
25 kt. Snow this morning...then a chance of snow this afternoon.
Waves 2 to 4 ft building to 3 to 5 ft.
.TONIGHT...West winds to 30 kt becoming northwest 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.MONDAY...Northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 3 to 5 ft subsiding to 1 to 3 ft.
.MONDAY NIGHT...North winds 5 to 10 kt veering to southeast.
Waves 1 to 3 ft.
.TUESDAY...Southeast winds 15 to 25 kt becoming south. Waves 3
to 5 ft.
.TUESDAY NIGHT...Southwest winds to 30 kt diminishing to 15 to
25 kt. Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Southwest winds 15 to 25 kt increasing to 30 kt.
Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.THURSDAY...West winds 10 to 20 kt becoming northwest to 30 kt.
Chance of rain and snow. Waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft.

$$
LMZ761-112230-
MAFOR 1116/
MICHIGAN NORTH 11627 11630 12640 11740 13730. Chance of snow this
afternoon. Waves 1 to 3 ft building to 3 to 5 ft today. Waves 4
to 7 ft occasionally to 9 ft tonight. Waves 3 to 5 ft subsiding
to 2 to 4 ft Monday morning.

MICHIGAN SOUTH 11727 11620 11630 12640 12730 11720. Chance of
snow this afternoon. Waves 2 to 4 ft building to 3 to 5 ft today.
Waves 4 to 7 ft occasionally to 9 ft tonight. Waves subsiding to
3 to 5 ft Monday morning.

$$


KJB

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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