Great Lakes Forecast
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274
FZUS63 KLOT 142041
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
241 PM CST Sun Jan 14 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 30.1 inches dropping southeast from
Minnesota will move to northern Illinois by Monday morning and
drift across the south end of the lake into early Tuesday. The
low will continue to Lake Huron later on Tuesday, filling
slightly to 30.2 inches. Another strong high pressure of 30.9
inches will push south across the Plains, weakening to 30.7 inches
as it reaches the lower Missouri Valley by Wednesday morning. The
high will weaken further to 30.4 inches over the southeast USA
late week.

LMZ261-362-364-366-563-565-567-868-150445-
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-
241 PM CST Sun Jan 14 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...South winds to 30 kt becoming southeast. Occasional
gale force gusts to 35 kt. Snow. Waves 6 to 9 ft occasionally to
12 ft.
.MONDAY...Southeast winds to 30 kt becoming east 15 to 25 kt.
Snow in the morning...then snow likely in the afternoon. Waves
6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.MONDAY NIGHT...East winds to 30 kt becoming northeast. Chance of
snow showers. Waves 4 to 6 ft occasionally to 8 ft.
.TUESDAY...North winds to 30 kt diminishing to 15 to 25 kt.
Chance of snow showers in the morning. Waves 4 to 6 ft
occasionally to 8 ft.
.TUESDAY NIGHT...Northwest winds 15 to 25 kt becoming west. Waves
3 to 5 ft.
.WEDNESDAY...West 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.
.WEDNESDAY NIGHT...West gales to 35 kt. Freezing spray. Waves
6 to 9 ft occasionally to 12 ft.
.THURSDAY...Southwest winds to 30 kt. Waves 5 to 8 ft
occasionally to 10 ft.
.FRIDAY...Southwest winds to 30 kt. Waves 4 to 7 ft occasionally
to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-150445-
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-
241 PM CST Sun Jan 14 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds to 30 kt. Snow. Waves 6 to 9 ft
occasionally to 12 ft.
.MONDAY...Southeast winds to 30 kt diminishing to 10 to 20 kt.
Snow. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.MONDAY NIGHT...Northeast winds to 30 kt becoming north 15 to
25 kt. Chance of snow showers in the evening...then snow showers
likely overnight. Waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft.
.TUESDAY...North winds to 30 kt. Chance of snow showers. Waves
4 to 6 ft occasionally to 8 ft.
.TUESDAY NIGHT...Northwest winds 15 to 25 kt. Chance of snow
showers. Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...West winds 15 to 25 kt increasing to 30 kt. Waves
3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY NIGHT...West gales to 35 kt becoming southwest to
30 kt. Freezing spray. Waves 6 to 9 ft occasionally to 12 ft.
.THURSDAY...Southwest winds to 30 kt. Waves 5 to 8 ft
occasionally to 10 ft.
.FRIDAY...Southwest winds to 30 kt. Waves 5 to 8 ft occasionally
to 10 ft.

$$

LMZ761-150445-
MAFOR 1422/
MICHIGAN NORTH 11440 11447 11447 19457 12347 19357 12347 11237.
Chance of snow early this evening. Waves 6 to 9 feet occasionally
to 12 feet tonight. Waves 6 to 9 feet occasionally to 12 feet
subsiding to 4 to 6 feet occasionally to 8 feet Monday.

MICHIGAN SOUTH 11440 14447 12347 11327. Waves 4 to 7 feet
occasionally to 9 feet building to 6 to 9 feet occasionally to 12
feet tonight. Waves 6 to 9 feet occasionally to 12 feet subsiding
to 4 to 6 feet occasionally to 8 feet Monday.

$$

Lenning

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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