Great Lakes Forecast
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000
FZUS63 KLOT 160847
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
247 AM CST Tue Jan 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 30.3 inches centered over the central
Great Lakes region will move to the eastern lakes today and
weaken. Strong high pressure of 30.8 inches is centered over the
Dakotas and will move to the lower Mississippi Valley Wednesday
then stay over the Deep South into the weekend. Meanwhile, low
pressure of 29.6 inches will move southeast across Hudson Bay
tonight and Wednesday. Another low of 29.3 inches will move from
Alberta Thursday to Lake Superior Friday night. Yet another low of
29.8 inches will move from the central/southern Great Plains
Saturday night to Lake Michigan Sunday night deepening to 29.3
inches.

LMZ261-362-364-366-563-565-567-868-161645-
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-
247 AM CST Tue Jan 16 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Northeast winds 15 to 25 kt becoming northwest. Chance
of snow showers. Waves 4 to 7 ft occasionally to 9 ft.
.TONIGHT...Northwest winds 10 to 20 kt becoming west 15 to 25 kt
after midnight...then increasing to 30 kt late. Chance of snow.
Waves 3 to 6 ft occasionally to 8 ft.
.WEDNESDAY...West winds to 30 kt becoming southwest. Occasional
gales to 35 kt. Freezing spray in the morning. Waves 4 to 6 ft
occasionally to 8 ft building to 8 to 11 ft occasionally to 14 ft.
.WEDNESDAY NIGHT...Southwest winds to 30 kt becoming west.
Occasional gales to 35 kt. Freezing spray overnight. Waves 8 to
11 ft occasionally to 14 ft.
.THURSDAY...West winds to 30 kt. Waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...West winds 15 to 25 kt becoming southwest.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.FRIDAY...Southwest winds to 30 kt increasing to gales to 35 kt.
Waves 3 to 5 ft building to 5 to 8 ft occasionally to 10 ft.
.SATURDAY...Southwest winds 15 to 25 kt. Waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.

Wave forecast is for ice free areas

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-161645-
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-
247 AM CST Tue Jan 16 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Northeast winds 15 to 20 kt becoming north 15 to 25 kt.
West winds 10 to 20 kt at far south end of lake through mid
morning becoming north 15 to 25 kt. Snow showers likely. Waves 4
to 7 ft occasionally to 9 ft.
.TONIGHT...Northwest winds 15 to 25 kt becoming west. Chance of
snow showers. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...West winds to 30 kt becoming southwest. Occasional
gales to 35 kt. Waves 4 to 6 ft occasionally to 8 ft building to 4
to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...Southwest winds to 30 kt. Occasional gales to
35 kt. Freezing spray. Waves 7 to 10 ft occasionally to 13 ft.
.THURSDAY...Southwest winds to 30 kt. Freezing spray in the
morning. Waves 6 to 9 ft occasionally to 12 ft.
.THURSDAY NIGHT...Southwest winds to 30 kt diminishing to 15 to
25 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.FRIDAY...Southwest winds to 30 kt. Waves 3 to 5 ft building to
4 to 7 ft occasionally to 9 ft.
.SATURDAY...Southwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft.

Wave forecast is for ice free areas

$$

LMZ761-161645-
MAFOR 1610/
MICHIGAN NORTH 12130 12830 11730 12720 11630. Chance of snow
showers. Waves 4 to 7 feet occasionally to 9 feet today. Waves 3
to 6 feet occasionally to 8 feet tonight.

MICHIGAN SOUTH 12127 19627 13837 13737. Waves 4 to 7 feet
occasionally to 9 feet.

$$

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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