Great Lakes Forecast
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148
FZUS63 KMKX 131459
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
859 AM 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...

Low pressure of 29.3 inches will continue to move slowly
northeast from eastern Ontario into Quebec today. Northwest gales
will continue through this morning, before gradually subsiding
this afternoon. Some freezing spray will occur as well.

Weak high pressure of 29.9 inches will then move from Lake
Superior to Ontario tonight into Thursday morning, with much
lighter winds expected.

Another low of 29.5 inches is then expected to develop over
northern Lake Michigan Thursday, moving into northeast Ontario
Thursday night and deepening to 29.3 inches. A cold front will
sweep across the lake Thursday evening.

Winds will again be gusty from the northwest behind this front,
with some gale force gusts possible. Freezing spray will also be a
concern, as colder air builds into the area Thursday night into
Friday.

LMZ261-362-364-366-563-565-567-868-132215-
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-
859 AM CST Wed Feb 13 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT UNTIL NOON CST TODAY...

.REST OF TODAY...Northwest gales to 35 kt becoming west to 30 kt.
Freezing spray. Chance of snow. Waves 7 to 10 ft occasionally to
13 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.TONIGHT...West winds 10 to 20 kt diminishing to 5 to 10 kt late
in the evening, then becoming south 10 to 20 kt after midnight
becoming southeast 15 to 25 kt late. Slight chance of snow
overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.THURSDAY...Southeast winds to 30 kt becoming south 15 to 25 kt.
Chance of snow showers in the morning, then rain and snow showers
likely in the afternoon. Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...West winds to 30 kt becoming northwest. Snow
showers with rain showers likely in the evening, then chance of
snow showers overnight. Freezing spray overnight. Waves 4 to 7 ft
occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft.
.FRIDAY...Northwest winds to 30 kt. Freezing spray. Chance of
snow. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.FRIDAY NIGHT...Northwest winds 15 to 25 kt becoming north 10 to
20 kt. Freezing spray. Waves 3 to 5 ft.
.SATURDAY...North winds 10 to 20 kt. Freezing spray. Waves 2 to
4 ft.
.SUNDAY...Northeast winds 10 to 20 kt. Freezing spray. Waves 2 to
4 ft.

Wave forecast is for ice free areas

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-132215-
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-
859 AM CST Wed Feb 13 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT UNTIL NOON CST TODAY...

.REST OF TODAY...Northwest gales to 35 kt becoming west 15 to 25
kt. Chance of snow through mid morning. Freezing spray. Waves 10
to 14 ft occasionally to 18 ft subsiding to 6 to 9 ft occasionally
to 12 ft.
.TONIGHT...West winds 10 to 20 kt backing to south 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
.THURSDAY...South winds 15 to 25 kt becoming southwest. Chance of
rain showers in the afternoon. Waves 4 to 7 ft occasionally to
9 ft.
.THURSDAY NIGHT...West winds to 30 kt becoming northwest gales to
35 kt. Chance of rain and snow showers in the evening. Freezing
spray overnight. Waves 4 to 7 ft occasionally to 9 ft building to
6 to 9 ft occasionally to 12 ft.
.FRIDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Freezing spray. Waves 6 to 9 ft occasionally to 12 ft.
.FRIDAY NIGHT...Northwest winds 15 to 25 kt becoming north 10 to
20 kt. Freezing spray. Waves 3 to 5 ft.
.SATURDAY...North winds 10 to 20 kt becoming northeast. Waves
2 to 4 ft.
.SUNDAY...East winds 15 to 25 kt becoming northeast. Freezing
spray. Chance of snow. Waves 3 to 5 ft.

Wave forecast is for ice free areas

$$

LMZ761-132215-
MAFOR 1316/
MICHIGAN NORTH...GALE WARNING IN EFFECT...12750 11630 11610 11510
11420 12330. Chance of snow this afternoon. Chance of snow
showers Thursday morning. Waves 6 to 9 ft occasionally to 12 ft
subsiding to 4 to 6 ft occasionally to 8 ft this afternoon. Waves
3 to 5 ft tonight. Waves 4 to 7 ft occasionally to 9 ft Thursday
morning. Wave heights are for ice free areas.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11650 11641 11630 11520
11510 13430. Chance of snow late this morning. Waves 10 to 14 ft
occasionally to 18 ft subsiding to 6 to 9 ft occasionally to 12
ft this afternoon. Waves 4 to 7 ft occasionally to 9 ft subsiding
to 4 to 6 ft occasionally to 8 ft tonight. Waves 4 to 7 ft
occasionally to 9 ft Thursday morning.

$$
Wood

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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