Great Lakes Forecast
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FZUS63 KDTX 210802
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
400 AM EDT Sun Apr 21 2024

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...Upper level trough holds over the Great Lakes for the
remainder of the weekend maintaining cooler, moderate west to
northwest flow. High pressure, 30.10 inches, then briefly works
across the region Sunday night through the first half of Monday.
Northern Plains low pressure, 29.50 inches, then reaches the
Great Lakes by Tuesday.

LHZ361-362-212000-
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-
400 AM EDT Sun Apr 21 2024

.TODAY...West winds 10 to 15 knots increasing to 15 to 20 knots
late in the morning...then decreasing to 10 to 15 knots early in
the afternoon increasing to 15 to 20 knots late in the afternoon.
Waves 3 to 5 feet.
.TONIGHT...Northwest winds 15 to 20 knots with gusts to around
30 knots becoming west 5 to 10 knots. Waves 4 to 6 feet.
.MONDAY...South winds 5 to 10 knots increasing to 15 to 20 knots.
Waves 1 to 3 feet building to 3 to 5 feet in the late morning and
afternoon. Waves occasionally around 8 feet.
.MONDAY NIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. A chance of showers
after midnight. Waves 4 to 6 feet. Waves occasionally around
8 feet.
.TUESDAY...South winds 20 to 25 knots with gusts to 35 knot gales
becoming southwest 15 to 20 knots with gusts to around 30 knots
late in the morning...then decreasing to 10 to 15 knots late in
the afternoon becoming north 20 to 25 knots with gusts to around
30 knots late in the evening. Showers likely. A chance of snow
showers and showers late in the evening. Waves 8 to 12 feet
subsiding to 4 to 6 feet late in the evening. Waves occasionally
around 15 feet.
.WEDNESDAY...North winds 20 to 25 knots with gusts to around
30 knots becoming northwest 10 to 15 knots. Waves 3 to 5 feet.
.THURSDAY...Northwest winds 5 to 10 knots becoming east 10 to
15 knots early in the evening...then veering to the southeast in
the late evening and early morning. Waves 2 to 4 feet subsiding
to 1 to 3 feet.


$$

LHZ363-462-212000-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
400 AM EDT Sun Apr 21 2024

.TODAY...Southwest winds 10 to 15 knots. Waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon.
.TONIGHT...Northwest winds 10 to 15 knots becoming 5 to 10 knots
early in the morning. Waves 3 to 5 feet.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. Waves 2 to 4 feet subsiding to
1 to 3 feet in the late morning and early afternoon...then
building to 2 to 4 feet early in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots after midnight. A chance
of showers after midnight. Waves 3 to 5 feet building to 5 to
7 feet after midnight. Waves occasionally around 10 feet.
.TUESDAY...South winds 20 to 25 knots with gusts to 35 knot gales
becoming southwest 10 to 15 knots late in the afternoon...then
becoming north 20 to 25 knots with gusts to 35 knot gales late in
the evening. Showers likely in the morning...then showers late in
the morning. A chance of showers late in the evening. Waves 8 to
12 feet subsiding to 4 to 6 feet late in the evening. Waves
occasionally around 15 feet.
.WEDNESDAY...North winds to 30 knots with gusts to 35 knot gales
decreasing to 10 to 15 knots. Waves 4 to 6 feet.
.THURSDAY...North winds 10 to 15 knots decreasing to 5 to
10 knots until early evening...then veering to the southeast in
the late evening and early morning. Waves 2 to 4 feet subsiding
to 1 to 3 feet until early morning. Waves occasionally around
8 feet.


$$

LHZ463-464-212000-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
400 AM EDT Sun Apr 21 2024

.TODAY...West winds 10 to 15 knots decreasing to 5 to 10 knots
early in the afternoon...then increasing to 10 to 15 knots late
in the afternoon. Waves 1 to 3 feet.
.TONIGHT...West winds 10 to 15 knots. Waves 1 to 3 feet building
to 2 to 4 feet after midnight.
.MONDAY...Light and variable winds becoming south 10 to 15 knots
in the late morning and afternoon. Waves 2 to 4 feet subsiding to
1 to 3 feet in the late morning and afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. Waves 2 to 4 feet
building to 4 to 6 feet after midnight. Waves occasionally around
8 feet.
.TUESDAY...South winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the afternoon...
then veering to the northwest with gusts to 35 knot gales late in
the evening. Showers likely in the morning...then showers late in
the morning. Showers likely late in the evening. Waves 6 to
9 feet subsiding to 3 to 5 feet late in the evening. Waves
occasionally around 12 feet.
.WEDNESDAY...North winds to 30 knots with gusts to 35 knot gales
decreasing to 10 to 15 knots. Waves 4 to 6 feet.
.THURSDAY...North winds 10 to 15 knots decreasing to 5 to
10 knots until early evening...then veering to the east in the
late evening and early morning. Waves 2 to 4 feet subsiding to
1 to 3 feet until early morning. Waves occasionally around
8 feet.


$$

LHZ461-211400-
MAFOR 2109/
HURON NORTH 13610 11620 13720 11700. Waves 2 to 4 feet
building to 3 to 5 feet today. Waves 4 to 6 feet subsiding to 2
to 4 feet. Occasional wave height around 8 feet tonight.

HURON SOUTH 14610 11700 13810. Waves 1 to 3 feet today. Waves 1
to 3 feet building to 3 to 5 feet tonight.

$$

CB

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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