Great Lakes Forecast
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FZUS63 KDTX 191945
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
339 PM EDT Thu Apr 19 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...Pressure gradient will relax tonight and high pressure,
30.50 inches, will expand into the Great Lakes. This high
pressure will persist through the weekend, slowly moving to the east
coast by early next week.

LHZ361-200800-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
339 PM EDT Thu Apr 19 2018

.TONIGHT...Northwest winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. Waves 4 to 6 feet subsiding to 2 to
4 feet early in the morning. Waves occasionally around 8 feet.
.FRIDAY...West winds 5 to 10 knots. Waves 1 to 3 feet.
.FRIDAY NIGHT...West winds 5 to 10 knots. Waves 2 feet or less.
.SATURDAY...Light and variable winds. Waves 2 feet or less.
.SATURDAY NIGHT...Light and variable winds. Waves 2 feet or less.
.SUNDAY...Light and variable winds becoming east 5 to 10 knots
late in the afternoon...then veering to the south late in the
evening. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots backing to the southeast
until early morning. Waves 2 feet or less.
.TUESDAY...Light and variable winds becoming southeast 5 to
10 knots until early morning. A chance of showers after midnight.
Waves 1 to 3 feet.


$$

LHZ362-363-200800-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
339 PM EDT Thu Apr 19 2018

.TONIGHT...Northwest winds 20 to 25 knots with gusts to 30 knots
decreasing to 15 to 20 knots after midnight. Waves 6 to 9 feet.
Waves occasionally around 12 feet.
.FRIDAY...Northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. Waves 3 to 5 feet subsiding to 2 to
4 feet late in the afternoon.
.FRIDAY NIGHT...West winds 5 to 10 knots. Waves 1 to 3 feet.
.SATURDAY...West winds 5 to 10 knots early in the morning
becoming light and variable. Waves 2 feet or less.
.SATURDAY NIGHT...Light and variable winds. Waves 2 feet or less.
.SUNDAY...Light and variable winds becoming east 5 to 10 knots
late in the evening. Waves 2 feet or less.
.MONDAY...Southeast winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY...South winds 5 to 10 knots becoming southeast 10 to
15 knots in the late evening and early morning. A chance of
showers until early morning. A chance of snow showers after
midnight. Waves 1 to 3 feet building to 2 to 4 feet in the late
evening and early morning.


$$

LHZ462>464-200800-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
339 PM EDT Thu Apr 19 2018

.TONIGHT...Northwest winds 15 to 20 knots increasing to 20 to
25 knots late in the evening...then decreasing to 15 to 20 knots
after midnight. Waves 6 to 9 feet. Waves occasionally around
12 feet.
.FRIDAY...Northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon. Waves 4 to 6 feet subsiding to
2 to 4 feet late in the afternoon. Waves occasionally around
8 feet.
.FRIDAY NIGHT...Light and variable winds. Waves 1 to 3 feet.
.SATURDAY...Light and variable winds. Waves 2 feet or less.
.SATURDAY NIGHT...Light and variable winds. Waves 2 feet or less.
.SUNDAY...Light and variable winds becoming north 5 to 10 knots
late in the afternoon...then veering to the east late in the
evening. Waves 2 feet or less.
.MONDAY...East winds 5 to 10 knots early in the morning becoming
light and variable...then becoming southeast 5 to 10 knots until
early morning. Waves 2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots. A chance of showers
until early morning. Waves 1 to 3 feet building to 2 to 4 feet in
the late evening and early morning.


$$

LHZ461-200200-
MAFOR 1921/
HURON NORTH 11730 11720 11820 12810 11710 12700. Waves 3 to
5 feet tonight. Waves 1 to 3 feet Friday. 220406.

HURON SOUTH 12730 12820 12810 12700. Waves 5 to 7 feet.
Occasional wave height around 9 feet tonight. Waves 3 to 5 feet
subsiding to 1 to 3 feet Friday. 220508.

$$

JD

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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