Great Lakes Forecast
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207
FZUS63 KLOT 161951
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
251 PM CDT Mon Apr 16 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 29.4 inches over the eastern Great
Lakes will ever so slowly drift to southern Quebec by early
Tuesday Night into Wednesday. Meanwhile, stout high pressure of
30.7 inches centered over Northern Quebec will also gradually move
north. A weak ridge of high pressure averaging 30.1 inches over
the Plains will spread across the Western Great Lakes by Tuesday
night. Low pressure of 29.3 inches will track from the southern
Plains Tuesday evening to the southern tip of Lake Michigan by
Wednesday afternoon.

LMZ261-362-364-366-563-565-170330-
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-
251 PM CDT Mon Apr 16 2018

TWO RIVERS WI TO MANISTEE MI NORTH...

.TONIGHT...Northwest winds to 30 kt with occasional gale force
gusts to 35 kt. Numerous snow showers. Waves 6 to 9 ft
occasionally to 12 ft.
.TUESDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt by
early afternoon. Chance of snow showers, mainly in the morning.
Waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to 5 ft.
.TUESDAY NIGHT...Northwest winds 10 to 20 kt diminishing to 10 to
15 kt after midnight, and then becoming north late. Waves
subsiding to 2 to 4 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt. Chance of snow in the
afternoon. Waves building to 3 to 5 ft.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 kt becoming north to
30 kt. Rain and snow likely. Waves 4 to 7 ft occasionally to 9
ft.
.THURSDAY...North winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.THURSDAY NIGHT...North winds 15 to 25 kt diminishing to 10 to
20 kt. Waves subsiding to 2 to 4 ft.
.FRIDAY...North winds 10 to 15 kt. Waves 1 to 3 ft.
.SATURDAY...Northeast winds less than 10 kt becoming east. Waves
1 to 2 ft.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-170330-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 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 Pentwater to Manistee MI 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-
251 PM CDT Mon Apr 16 2018

TWO RIVERS WI TO MANISTEE MI SOUTH...

.TONIGHT...Northwest winds to 30 kt with occasional gale force
gusts to 35 kt. Scattered snow showers. Waves 8 to 11 ft
occasionally to 14 ft.
.TUESDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt by
early afternoon, and to 10 to 20 kt late in the day. Chance of
snow, mainly in the morning. Waves 8 to 11 ft occasionally to 14
ft subsiding to 4 to 6 ft occasionally to 8 ft.
.TUESDAY NIGHT...Northwest winds 10 to 15 kt veering to northeast
10 to 20 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.WEDNESDAY...East winds 10 to 20 kt becoming northeast. Chance of
a wintry mix in the morning, then rain and snow likely in the
afternoon. Waves 3 to 5 ft.
.WEDNESDAY NIGHT...North winds to 30 kt. Rain and snow likely.
Waves 5 to 8 ft occasionally to 10 ft.
.THURSDAY...North winds to 30 kt becoming northwest 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...North winds 10 to 20 kt. Waves subsiding to 2
to 4 ft.
.FRIDAY...North winds 10 to 20 kt. Waves 1 to 3 ft.
.SATURDAY...Northeast winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 2 ft.

$$

LMZ761-170330-
MAFOR 1621/
MICHIGAN NORTH 14747 19757 11747 19757 12740 11730. Chance of snow
showers Tuesday morning. Waves 6 to 9 ft occasionally to 12 ft
through early Tuesday morning, gradually subsiding to 3 to 5 ft
by late Tuesday afternoon.

MICHIGAN SOUTH 14740 19750 11470 19750 12740 11730. Scattered snow
showers through Tuesday morning. Waves 8 to 11 ft occasionally to
14 ft through early Tuesday morning, gradually subsiding to 4 to
6 ft occasionally to 8 ft by late Tuesday afternoon.

$$

MTF

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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