Great Lakes Forecast
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000
FZUS63 KLOT 160201
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
801 PM CST Wed Nov 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...Low pressure of 29.5 inches near the Soo will move
to southeastern Quebec overnight while deepening to 29.4 inches.
After a period of northwesterly gales into early Thursday, a fast
moving ridge of high pressure of 30.3 inches will cross the lake
late in the day. Behind the ridge a period of southerly gales is
likely Friday before low pressure of 29.2 inches moves across
central Lake Michigan early Saturday morning.

LMZ261-362-364-366-563-565-567-868-161045-
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-
801 PM CST Wed Nov 15 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT THROUGH THURSDAY MORNING...

.REST OF TONIGHT...Northwest gales to 40 kt. Chance of rain.
Waves 8 to 12 ft occasionally to 16 ft.
.THURSDAY...North gales to 40 kt diminishing to 15 to 25 kt.
Waves 8 to 12 ft occasionally to 16 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east 10 to
15 kt late in the evening...then becoming southeast 10 to 20 kt
after midnight becoming south to 30 kt late. Waves 3 to 5 ft.
.FRIDAY...South gales to 35 kt increasing to gales to 40 kt. Rain
likely in the afternoon. Waves 7 to 10 ft occasionally to 13 ft
building to 8 to 12 ft occasionally to 16 ft.
.FRIDAY NIGHT...South gales to 35 kt becoming west 10 to 20 kt
overnight. Rain in the evening...then rain likely overnight.
Waves 8 to 12 ft occasionally to 16 ft subsiding to 5 to 8 ft
occasionally to 10 ft.
.SATURDAY...Northwest winds to 30 kt increasing to gales to
35 kt. Rain likely in the morning...then chance of snow and rain
in the afternoon. Waves 4 to 6 ft occasionally to 8 ft building
to 7 to 10 ft occasionally to 13 ft.
.SATURDAY NIGHT...Northwest gales to 35 kt. Chance of snow and
rain. Waves 8 to 11 ft occasionally to 14 ft.
.SUNDAY...Northwest winds to 30 kt. Chance of snow. Waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.MONDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-161045-
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-
801 PM CST Wed Nov 15 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT UNTIL 6 AM CST THURSDAY...

.REST OF TONIGHT...Northwest gales to 40 kt. Waves 7 to 10 ft
occasionally to 13 ft building to 10 to 14 ft occasionally to 18
ft.
.THURSDAY...Northwest gales to 35 kt becoming north 10 to 20 kt.
Waves 10 to 14 ft occasionally to 18 ft subsiding to 6 to 9 ft
occasionally to 12 ft.
.THURSDAY NIGHT...Northeast winds 10 to 15 kt becoming southeast
late in the evening...then becoming south 10 to 20 kt after
midnight increasing to 30 kt late. Waves 4 to 6 ft occasionally
to 8 ft subsiding to 3 to 5 ft.
.FRIDAY...South gales to 35 kt. Chance of rain in the afternoon.
Waves 7 to 10 ft occasionally to 13 ft building to 8 to 12 ft
occasionally to 16 ft.
.FRIDAY NIGHT...South winds to 30 kt becoming west 15 to 25 kt.
Rain in the evening...then rain likely overnight. Waves 8 to
11 ft occasionally to 14 ft subsiding to 4 to 7 ft occasionally
to 9 ft.
.SATURDAY...Northwest winds to 30 kt increasing to gales to
35 kt. Rain in the morning...then chance of rain and snow in the
afternoon. Waves 4 to 7 ft occasionally to 9 ft building to 8 to
11 ft occasionally to 14 ft.
.SATURDAY NIGHT...Northwest gales to 40 kt diminishing to gales
to 35 kt. Chance of rain and snow. Waves 8 to 12 ft occasionally
to 16 ft.
.SUNDAY...Northwest winds to 30 kt. Waves 7 to 10 ft occasionally
to 13 ft subsiding to 5 to 8 ft occasionally to 10 ft.
.MONDAY...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.

$$
LMZ761-161045-
MAFOR 1604/
MICHIGAN NORTH...Gale Warning in effect...13750 11850 11840 11830
11820 11110. Chance of rain. Waves 8 to 12 ft occasionally to 16
ft overnight and early Thursday subsiding to 4 to 7 ft
occasionally to 9 ft Thursday afternoon. Waves 3 to 5 feet
Thursday evening.

MICHIGAN SOUTH...Gale Warning in effect...14750 11740 11830 11820
11210. Waves 7 to 10 ft occasionally to 13 ft building to 10 to
14 ft occasionally to 18 ft overnight and early Thursday...
subsiding to subsiding to 6 to 9 ft occasionally to 12 ft Thursday
afternoon. Waves 4 to 7 feet occasionally to 9 feet Thursday
evening.

$$

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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