Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 060848
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
348 AM EST Wed Dec 6 2017

For waters beyond five nautical miles off shore on Lake Huron

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...A large and deep low pressure system will move slowly
across northern Ontario today while weakening from 28.70 inches. The
system will continue to produce westerly gales before subsiding to
30 knots or less by late afternoon. A front will then move through
the region overnight through Thursday with just light to moderate
wind through Friday. A stronger low pressure system is then due to
move through the central Great Lakes during the weekend.

LHZ361-362-062100-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
348 AM EST Wed Dec 6 2017

...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest winds to 30 knots with gusts to 40 knot gales
becoming west 20 to 25 knots with gusts to 35 knot gales in the
late morning and afternoon. Snow showers likely in the morning...
then a chance of snow showers in the afternoon. Waves 8 to
12 feet. Waves occasionally around 15 feet.
.TONIGHT...West winds 20 to 25 knots. Gusts to 30 knots until
early morning. A chance of snow showers in the evening...then
snow showers likely after midnight. Waves 8 to 12 feet. Waves
occasionally around 15 feet.
.THURSDAY...Northwest winds 15 to 20 knots. Snow showers likely
until late afternoon. Waves 5 to 7 feet. Waves occasionally
around 10 feet.
.THURSDAY NIGHT...West winds 15 to 20 knots. A chance of snow
showers after midnight. Waves 4 to 6 feet. Waves occasionally
around 8 feet.
.FRIDAY...Southwest winds 20 to 25 knots with gusts to 30 knots
decreasing to 10 to 15 knots. A chance of snow showers. Waves
5 to 7 feet. Waves occasionally around 10 feet.
.SATURDAY...West winds 10 to 15 knots becoming 15 to 20 knots
until early morning. A chance of snow showers. Waves 4 to 6 feet.
Waves occasionally around 8 feet.
.SUNDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots with gusts to 35 knot gales until early morning. A
chance of snow showers until early morning. Waves 4 to 6 feet
building to 5 to 7 feet in the late evening and early morning.
Waves occasionally around 10 feet.


$$

LHZ363-062100-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
348 AM EST Wed Dec 6 2017

...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest at 35 knot gales with gusts to 40 knot gales
becoming west 20 to 25 knots with gusts to 30 knots. Waves 10 to
14 feet. Waves occasionally around 18 feet.
.TONIGHT...West winds 20 to 25 knots. Gusts to 30 knots in the
evening. A chance of snow showers after midnight. Waves 6 to
9 feet. Waves occasionally around 12 feet.
.THURSDAY...West winds 15 to 20 knots. A chance of snow showers.
Waves 5 to 7 feet. Waves occasionally around 10 feet.
.THURSDAY NIGHT...West winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 30 knots in the late evening and
overnight. A chance of snow showers early in the evening. Waves
4 to 6 feet. Waves occasionally around 8 feet.
.FRIDAY...Southwest winds 20 to 25 knots decreasing to 15 to
20 knots late in the evening. Gusts to 35 knot gales. A chance of
snow showers. Waves 5 to 7 feet. Waves occasionally around
10 feet.
.SATURDAY...Southwest winds 10 to 15 knots veering to the
northwest until early evening...then becoming north 15 to
20 knots in the late evening and early morning. A chance of snow
showers. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.SUNDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots with gusts to 35 knot gales early in the evening...then
becoming southwest 20 to 25 knots with gusts to 35 knot gales in
the late evening and early morning. A chance of snow showers
early in the morning. A chance of snow showers after midnight.
Waves 4 to 6 feet building to 6 to 9 feet in the late evening and
early morning. Waves occasionally around 12 feet.


$$

LHZ462-463-062100-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
348 AM EST Wed Dec 6 2017

...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest winds to 30 knots becoming west 20 to 25 knots
late in the afternoon. Gusts to 40 knot gales. Waves 8 to
12 feet. Waves occasionally around 15 feet.
.TONIGHT...West winds 20 to 25 knots. Gusts to 30 knots in the
evening. Waves 6 to 9 feet. Waves occasionally around 12 feet.
.THURSDAY...West winds 15 to 20 knots. A chance of snow showers.
Waves 4 to 6 feet. Waves occasionally around 8 feet.
.THURSDAY NIGHT...West winds 15 to 20 knots. Gusts to 30 knots
after midnight. A chance of snow showers early in the evening.
Waves 3 to 5 feet.
.FRIDAY...Southwest winds 20 to 25 knots decreasing to 15 to
20 knots late in the evening. Gusts to 35 knot gales. A chance of
snow showers. Waves 4 to 6 feet.
.SATURDAY...Southwest winds 10 to 15 knots veering to the west in
the late morning and early afternoon...then veering to the
northwest early in the evening becoming north 15 to 20 knots in
the late evening and early morning. A chance of snow showers.
Waves 3 to 5 feet. Waves occasionally around 8 feet.
.SUNDAY...Northwest winds 10 to 15 knots becoming southwest 15 to
20 knots with gusts to 30 knots until early morning. A chance of
snow showers early in the morning. A chance of snow showers after
midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet.


$$

LHZ464-062100-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
348 AM EST Wed Dec 6 2017

...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest winds to 30 knots becoming west 20 to 25 knots
late in the afternoon. Gusts to 35 knot gales. Waves 5 to 7 feet.
Waves occasionally around 10 feet.
.TONIGHT...West winds 20 to 25 knots with gusts to 30 knots
decreasing to 15 to 20 knots in the late evening and overnight.
Waves 3 to 5 feet.
.THURSDAY...West winds 15 to 20 knots. Waves 2 to 4 feet.
.THURSDAY NIGHT...West winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. Waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.FRIDAY...Southwest winds 15 to 20 knots. Gusts to 30 knots late
in the morning. A chance of snow showers late in the afternoon.
Waves 2 to 4 feet.
.SATURDAY...Southwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then becoming
northwest 10 to 15 knots until early morning. A chance of snow
showers. Waves 1 to 3 feet building to 3 to 5 feet until early
morning.
.SUNDAY...Northwest winds 10 to 15 knots backing to the west
early in the evening...then becoming southwest 15 to 20 knots in
the late evening and early morning. Waves 2 to 4 feet.


$$

LHZ461-062100-
MAFOR 0610/
HURON NORTH...Gale Warning in effect...12540 19550 14630 12637.
A chance of snow showers today and this evening. Waves 6 to 9
feet. Waves occasional wave height around 12 feet. . 210710
210609.

HURON SOUTH...Gale Warning in effect...11540 19560 11540 19550
12640 19650 12630 12620. A chance of snow showers tonight.
Waves 10 to 14 feet subsiding to 8 to 12 feet. Occasional wave
height around 18 feet today. Waves 5 to 7 feet. Occasional wave
height around 10 feet tonight. 220912.

$$

IRL

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftable (all lower case)

Graphical marine forecasts are available online at
weather.gov/greatlakes (all lower case)



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