Great Lakes Forecast
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FZUS63 KDTX 170741
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
241 AM EST Wed Jan 17 2018

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 ridge of high pressure will intrude into the area from a large
arctic high pressure system centered over the deep south. This
feature will largely remain in place into the weekend. To the north,
low pressure of 29.50 inches will track from the southern shores of
Hudson Bay into Ontario today. A second low will then organize over
the Canadian prairie provinces late Thursday and sweep east across
northern Ontario on Friday.

LHZ361-172100-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
241 AM EST Wed Jan 17 2018

.TODAY...Southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 30 knots in the late morning and
afternoon. Freezing spray in the afternoon. Waves 3 to 5 feet
building to 6 to 9 feet in the afternoon. Waves occasionally
around 12 feet.
.TONIGHT...West winds 20 to 25 knots. Gusts to 35 knot gales
until early morning. Freezing spray. Waves 6 to 9 feet. Waves
occasionally around 12 feet.
.THURSDAY...West winds 15 to 20 knots decreasing to 5 to
10 knots. A chance of snow showers in the afternoon. Waves 4 to
6 feet. Waves occasionally around 8 feet.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. A chance of snow
showers early in the evening. Waves 3 to 5 feet.
.FRIDAY...Southwest winds 5 to 10 knots increasing to 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet late in the
evening.
.SATURDAY...West winds 10 to 15 knots decreasing to 5 to 10 knots
until early morning. Waves 1 to 3 feet.
.SUNDAY...Light and variable winds becoming southeast 5 to
10 knots until early evening...then becoming east 10 to 15 knots
in the late evening and early morning. A chance of showers in the
afternoon and evening. A chance of snow showers in the afternoon
and evening...then snow showers after midnight. Waves 2 feet or
less building to 2 to 4 feet in the late evening and early
morning.


$$

LHZ362-172100-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
241 AM EST Wed Jan 17 2018

...GALE WARNING IN EFFECT FROM 10 AM EST THIS MORNING THROUGH
THIS EVENING...

.TODAY...Southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 35 knot gales in the late morning and
afternoon. Freezing spray late in the afternoon. Waves 4 to
6 feet building to 8 to 12 feet in the afternoon. Waves
occasionally around 15 feet.
.TONIGHT...Southwest winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots with gusts to 30 knots in the
late evening and overnight. Waves 6 to 9 feet subsiding to 5 to
7 feet early in the morning. Waves occasionally around 12 feet.
.THURSDAY...Southwest winds 10 to 15 knots. Waves 5 to 7 feet.
Waves occasionally around 10 feet.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Waves 4 to
6 feet.
.FRIDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then increasing to 20 to 25 knots
with gusts to 30 knots late in the afternoon decreasing to 15 to
20 knots with gusts to 30 knots late in the evening. Waves 5 to
7 feet. Waves occasionally around 10 feet.
.SATURDAY...Southwest winds 10 to 15 knots decreasing to 5 to
10 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet until early
morning.
.SUNDAY...Southwest winds 5 to 10 knots backing to the east early
in the evening...then increasing to 15 to 20 knots in the late
evening and early morning. A chance of snow showers in the
afternoon and evening. A chance of showers. Snow showers after
midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late
evening and early morning.


$$

LHZ363-462-172100-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
241 AM EST Wed Jan 17 2018

...GALE WARNING IN EFFECT FROM 10 AM EST THIS MORNING THROUGH
LATE TONIGHT...

.TODAY...Southwest winds 10 to 15 knots increasing to 30 knots
with gusts to 40 knot gales. Freezing spray in the afternoon.
Waves 2 to 4 feet building to 8 to 12 feet. Waves occasionally
around 15 feet.
.TONIGHT...Southwest winds to 30 knots with gusts to 40 knot
gales decreasing to 20 to 25 knots with gusts to 35 knot gales
after midnight. Freezing spray until early morning. Waves 8 to
12 feet. Waves occasionally around 15 feet.
.THURSDAY...Southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. Waves 5 to 7 feet. Waves
occasionally around 10 feet.
.THURSDAY NIGHT...Southwest winds 15 to 20 knots decreasing to
10 to 15 knots in the late evening and overnight. Waves 4 to
6 feet. Waves occasionally around 8 feet.
.FRIDAY...Southwest winds 10 to 15 knots increasing to 20 to
25 knots with gusts to 30 knots. Waves 5 to 7 feet. Waves
occasionally around 10 feet.
.SATURDAY...Southwest winds 15 to 20 knots decreasing to 10 to
15 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.SUNDAY...Southwest winds 5 to 10 knots backing to the southeast
early in the evening...then increasing to 10 to 15 knots in the
late evening and early morning. A chance of snow showers. A
chance of showers...then snow showers with showers likely after
midnight. Waves 2 to 4 feet building to 3 to 5 feet in the late
evening and early morning.

Wave heights are for ice free areas.

$$

LHZ463-464-172100-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
241 AM EST Wed Jan 17 2018

.TODAY...Southwest winds 10 to 15 knots increasing to 20 to
25 knots with gusts to 30 knots. Waves 1 to 3 feet building to
4 to 6 feet in the afternoon. Waves occasionally around 8 feet.
.TONIGHT...Southwest winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots after midnight. Waves 4 to
6 feet. Waves occasionally around 8 feet.
.THURSDAY...Southwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. Waves 3 to 5 feet.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Waves 2 to
4 feet subsiding to 1 to 3 feet after midnight.
.FRIDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 30 knots. Waves 3 to 5 feet.
.SATURDAY...Southwest winds 15 to 20 knots decreasing to 5 to
10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY...South winds 5 to 10 knots. A chance of snow showers. A
chance of showers until early evening...then rain and snow
showers likely in the late evening and early morning. Waves 1 to
3 feet building to 2 to 4 feet in the late evening and early
morning.

Wave heights are for ice free areas.

$$

LHZ461-172100-
MAFOR 1710/
HURON NORTH...Gale Warning in effect...11520 13530 12630
12620. Waves 1 to 3 feet building to 4 to 6 feet. Occasional wave
height around 8 feet today. Waves 5 to 7 feet subsiding to 3 to 5
feet. Occasional wave height around 10 feet tonight. 210204
210305.

HURON SOUTH...Gale Warning in effect...11610 11530 11530 19550
11541 19551 12551 11641 19651 11631. Waves 2 to 4 feet
building to 6 to 9 feet. Occasional wave height around 12 feet
today. Waves 6 to 9 feet. Occasional wave height around 12 feet
tonight. 210103 210204.

$$

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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