Great Lakes Forecast
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000
FZUS63 KMKX 140233
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
833 PM CST Wed Feb 13 2019

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...

High pressure of 30.2 inches will pass well to the south of the
region tonight as west winds continue to ease.

Low pressure of 29.5 inches will strengthen to 29.2 inches as it
moves from southwest Iowa to northeast Ontario Thursday and
Thursday night. A strong cold front will sweep across the lake
late Thursday afternoon into Thursday evening.

Winds will again be gusty from the west and northwest behind this
front, with some gale force gusts possible Thursday night over
the south half of the lake. A Gale Watch is in effect for this
part of the lake Thursday night. Freezing spray will also be a
concern Thursday night and Friday, as colder air builds into the
area.

LMZ261-362-364-366-563-565-567-868-141015-
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-
833 PM CST Wed Feb 13 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...West winds 10 to 15 kt backing to south after
midnight, then becoming southeast 15 to 25 kt late. Chance of
snow showers overnight. Waves 2 to 4 ft.
.THURSDAY...Southeast winds 15 to 25 kt becoming south. Chance of
snow, rain and slight chance of light freezing rain in the
morning, then snow with possible rain and freezing rain likely in
the afternoon. Patchy fog in the afternoon. Waves 4 to 7 ft
occasionally to 9 ft.
.THURSDAY NIGHT...Southwest winds 15 to 25 kt becoming northwest
to 30 kt from late evening on. Patchy fog in the evening, then
freezing spray overnight. Snow with rain likely in the evening,
then chance of snow showers overnight. Waves 4 to 7 ft
occasionally to 9 ft building to 6 to 9 ft occasionally to 12 ft.
.FRIDAY...Northwest gales to 35 kt diminishing to 30 kt. Freezing
spray. Snow showers likely. Waves 6 to 9 ft occasionally to
12 ft.
.FRIDAY NIGHT...Northwest winds to 30 kt becoming north 10 to
20 kt overnight. Chance of snow showers in the evening. Freezing
spray. Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY...North winds 10 to 20 kt diminishing to 10 to 15 kt.
Freezing spray in the morning. Waves 2 to 4 ft subsiding to 1 to
3 ft.
.SATURDAY NIGHT...Northeast winds 10 to 20 kt. Freezing spray.
Waves 2 to 4 ft.
.SUNDAY...Northeast winds 10 to 20 kt increasing to 15 to 25 kt.
Freezing spray. Chance of snow. Waves 2 to 4 ft building to 3 to
5 ft.
.MONDAY...Northeast winds 10 to 20 kt. Freezing spray. Waves 3 to
5 ft subsiding to 2 to 4 ft.

Wave forecast is for ice free areas

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-141015-
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-
833 PM CST Wed Feb 13 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WATCH IN EFFECT FROM THURSDAY EVENING THROUGH LATE
THURSDAY NIGHT...

.REST OF TONIGHT...West winds 10 to 20 kt backing to south 15 to
25 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft.
.THURSDAY...South winds 15 to 25 kt becoming southwest 10 to
20 kt. Patchy fog in the afternoon. Chance of rain in the
afternoon. Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...Southwest winds to 30 kt becoming northwest.
Rain likely with a chance of snow in the evening. Patchy fog in
the evening, then freezing spray overnight. Waves 4 to 7 ft
occasionally to 9 ft building to 7 to 10 ft occasionally to
13 ft.
.FRIDAY...Northwest gales to 35 kt diminishing to 15 to 25 kt in
the afternoon. Freezing spray. Waves 7 to 10 ft occasionally to
13 ft.
.FRIDAY NIGHT...Northwest winds 15 to 25 kt becoming north 10 to
20 kt. Freezing spray. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft.
.SATURDAY...Northeast winds 10 to 15 kt. Waves 2 to 4 ft.
.SATURDAY NIGHT...Northeast winds 15 to 25 kt becoming east.
Freezing spray. Chance of snow. Waves 3 to 5 ft.
.SUNDAY...East winds 15 to 25 kt becoming northeast. Freezing
spray. Chance of snow. Waves 3 to 5 ft.
.MONDAY...Northeast winds 10 to 20 kt becoming north. Freezing
spray. Waves 3 to 5 ft.

Wave forecast is for ice free areas

$$

LMZ761-141015-
MAFOR 1404/
MICHIGAN NORTH 11600 11420 12330 11430 12437 11647. Chance of
snow showers overnight. Chance of snow and rain Thursday morning.
Waves 2 to 4 ft building to 3 to 5 ft overnight. Waves 4 to 7 ft
occasionally to 9 ft Thursday and Thursday evening. Wave heights
are for ice free areas.

MICHIGAN SOUTH 11510 14430 11430 11526 11647. Chance of rain
Thursday afternoon. Waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft overnight. Waves 4 to 7 ft occasionally to 9
ft Thursday and Thursday evening.

$$
MBK

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes



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