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FZUS63 KDTX 200740
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
240 AM EST Mon Nov 20 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...High pressure system, 30.10 inches, will slide east
through the Ohio Valley today, with an extension of the ridge
northward across the Great Lakes region. The next low pressure
system, 29.20 inches, will move east along the southern tier of
Canada to just north of Lake Superior late tonight. Southwest winds
will increase between the departing high and the approaching low.
The attendant cold front will clear the central Great Lakes region
Tuesday, ushering in another round of brisk northwesterly flow. High
pressure will regain a foothold on Wednesday.

LHZ361-202115-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
240 AM EST Mon Nov 20 2017

...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
EVENING...

.TODAY...West winds 10 to 15 knots becoming south 5 to 10 knots
in the late morning and afternoon. Waves 3 to 5 feet subsiding to
1 to 3 feet in the afternoon.
.TONIGHT...South winds 10 to 15 knots becoming southwest 15 to
20 knots after midnight. Waves 2 to 4 feet building to 4 to
6 feet in the late evening and overnight. Waves occasionally
around 8 feet.
.TUESDAY...Southwest winds 15 to 20 knots with gusts to 30 knots
becoming west 20 to 25 knots with gusts to 35 knot gales early in
the afternoon. A chance of showers in the late morning and
afternoon. A chance of snow showers in the afternoon. Waves 6 to
9 feet. Waves occasionally around 12 feet.
.TUESDAY NIGHT...West winds to 30 knots with gusts to 35 knot
gales becoming northwest 10 to 15 knots. A chance of snow showers
and showers early in the evening. Waves 6 to 9 feet. Waves
occasionally around 12 feet.
.WEDNESDAY...West winds 10 to 15 knots. Waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon...then building to
2 to 4 feet late in the evening.
.THURSDAY...West winds 15 to 20 knots becoming northwest 5 to
10 knots in the late evening and early morning. A chance of rain
and snow showers in the afternoon. Waves 3 to 5 feet.
.FRIDAY...West winds 5 to 10 knots becoming southwest 15 to
20 knots. A chance of rain and snow showers in the afternoon.
Showers until early morning. Snow showers late in the evening.
Waves 2 feet or less building to 4 to 6 feet. Waves occasionally
around 8 feet.


$$

LHZ362-202115-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
240 AM EST Mon Nov 20 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH LATE TUESDAY
NIGHT...

.TODAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. Waves 4 to 6 feet.
.TONIGHT...Southwest winds 15 to 20 knots increasing to 30 knots.
Gusts to 35 knot gales. Waves 6 to 9 feet building to 10 to
14 feet after midnight. Waves occasionally around 18 feet.
.TUESDAY...Southwest winds to 30 knots decreasing to 20 to
25 knots in the late morning and afternoon. Gusts to 35 knot
gales. A chance of showers in the afternoon. Waves 10 to 14 feet.
Waves occasionally around 18 feet.
.TUESDAY NIGHT...Northwest winds to 30 knots with gusts to
40 knot gales decreasing to 20 to 25 knots with gusts to 30 knots
after midnight. A chance of showers in the evening. Waves 10 to
14 feet. Waves occasionally around 18 feet.
.WEDNESDAY...West winds 10 to 15 knots. Waves 6 to 9 feet
subsiding to 3 to 5 feet. Waves occasionally around 12 feet.
.THURSDAY...West winds 15 to 20 knots with gusts to 30 knots
becoming northwest 10 to 15 knots in the late evening and early
morning. A chance of snow showers early in the afternoon. A
chance of showers in the afternoon. Waves 4 to 6 feet.
.FRIDAY...West winds 5 to 10 knots becoming southwest 15 to
20 knots with gusts to 35 knot gales in the late morning and
early afternoon...then increasing to 30 knots with gusts to
35 knot gales early in the evening decreasing to 20 to 25 knots
with gusts to 35 knot gales in the late evening and early
morning. A chance of showers until afternoon...then rain and snow
showers likely until early morning. Waves 2 to 4 feet building to
8 to 12 feet. Waves occasionally around 15 feet.


$$

LHZ363-202115-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
240 AM EST Mon Nov 20 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH TUESDAY
MORNING...

.TODAY...Southwest winds 15 to 20 knots. Gusts to 30 knots late
in the afternoon. Waves 4 to 6 feet.
.TONIGHT...Southwest winds 20 to 25 knots increasing to 30 knots
in the late evening and overnight. Gusts to 35 knot gales. Waves
6 to 9 feet building to 10 to 14 feet after midnight. Waves
occasionally around 18 feet.
.TUESDAY...South winds to 30 knots becoming southwest 20 to
25 knots in the late morning and afternoon. Gusts to 35 knot
gales. A chance of showers in the afternoon. Waves 8 to 12 feet.
Waves occasionally around 15 feet.
.TUESDAY NIGHT...West winds 20 to 25 knots becoming northwest
15 to 20 knots after midnight. Gusts to 35 knot gales. A chance
of showers early in the evening. Waves 8 to 12 feet. Waves
occasionally around 15 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 5 to 7 feet subsiding to 2 to 4 feet late in the
afternoon. Waves occasionally around 10 feet.
.THURSDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots in the late evening and early morning. Waves 4 to
6 feet. Waves occasionally around 8 feet.
.FRIDAY...West winds 5 to 10 knots becoming southwest 15 to
20 knots with gusts to 30 knots in the late morning and early
afternoon...then increasing to 20 to 25 knots with gusts to
35 knot gales early in the evening increasing to 30 knots with
gusts to 35 knot gales in the late evening and early morning.
Showers likely until early morning. Snow showers likely late in
the evening. Waves 2 to 4 feet building to 8 to 12 feet. Waves
occasionally around 15 feet.


$$

LHZ462-202115-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
240 AM EST Mon Nov 20 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.TODAY...Southwest winds 15 to 20 knots. Waves 4 to 6 feet. Waves
occasionally around 8 feet.
.TONIGHT...Southwest winds 20 to 25 knots increasing to 30 knots
after midnight. Gusts to 35 knot gales. Waves 6 to 9 feet. Waves
occasionally around 12 feet.
.TUESDAY...Southwest winds 20 to 25 knots with gusts to 35 knot
gales. A chance of showers in the afternoon. Waves 6 to 9 feet.
Waves occasionally around 12 feet.
.TUESDAY NIGHT...Northwest winds 20 to 25 knots with gusts to
30 knots. A chance of showers in the evening. Waves 6 to 9 feet.
Waves occasionally around 12 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 5 to 10 knots
late in the afternoon becoming southwest 10 to 15 knots late in
the evening. Waves 5 to 7 feet subsiding to 2 to 4 feet. Waves
occasionally around 10 feet.
.THURSDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and early morning. Waves 3 to
5 feet.
.FRIDAY...West winds 5 to 10 knots becoming southwest 10 to
15 knots with gusts to 30 knots in the late morning and early
afternoon...then becoming south 20 to 25 knots with gusts to
35 knot gales early in the evening becoming southwest to 30 knots
with gusts to 35 knot gales in the late evening and early
morning. Showers likely until early morning. Waves 2 to 4 feet
building to 6 to 9 feet. Waves occasionally around 12 feet.


$$

LHZ463-464-202115-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
240 AM EST Mon Nov 20 2017

.TODAY...Southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 30 knots late in the afternoon. Waves 3 to
5 feet building to 5 to 7 feet late in the afternoon. Waves
occasionally around 10 feet.
.TONIGHT...Southwest winds 20 to 25 knots becoming south to
30 knots early in the morning. Gusts to 35 knot gales. Waves 6 to
9 feet. Waves occasionally around 12 feet.
.TUESDAY...South winds to 30 knots with gusts to 35 knot gales
becoming southwest 15 to 20 knots. A chance of showers late in
the afternoon. Waves 6 to 9 feet. Waves occasionally around
12 feet.
.TUESDAY NIGHT...Northwest winds 20 to 25 knots with gusts to
30 knots. A chance of showers in the evening. Waves 6 to 9 feet.
Waves occasionally around 12 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 5 to 10 knots
late in the afternoon increasing to 10 to 15 knots late in the
evening. Waves 5 to 7 feet subsiding to 1 to 3 feet. Waves
occasionally around 10 feet.
.THURSDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots until early evening...then becoming west 10 to 15 knots
in the late evening and early morning. Waves 2 to 4 feet.
.FRIDAY...West winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and early afternoon...then becoming
south 20 to 25 knots with gusts to 30 knots early in the evening
becoming southwest to 30 knots with gusts to 35 knot gales in the
late evening and early morning. A chance of showers in the
evening. Showers likely after midnight. Waves 1 to 3 feet
building to 6 to 9 feet. Waves occasionally around 12 feet.


$$

LHZ461-202115-
MAFOR 2010/
HURON NORTH...Gale Warning in effect...11620 11510 11500
11510 11520 12530 11540. Waves 5 to 7 feet subsiding to 2 to 4
feet. Occasional wave height around 10 feet today. Waves 3 to 5
feet building to 8 to 12 feet. Occasional wave height around 15
feet tonight. 210507 210305.

HURON SOUTH...Gale Warning in effect...11620 13520 12530 12540
19550. Waves 3 to 5 feet today. Waves 4 to 6 feet building to 6
to 9 feet. Occasional wave height around 12 feet tonight. 210406
210305.

$$

JVC

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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