Great Lakes Forecast
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950
FZUS63 KDTX 201959
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
359 PM EDT Tue Apr 20 2021

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...Low pressure, 29.80 inches, will continue to push off
to the east this evening and into Wednesday. Westerly flow this
afternoon will slowly turn more northerly Wednesday behind the
departing low pressure. Breezy conditions will also continue to
hold through Wednesday.

LHZ361-362-210815-
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-
359 PM EDT Tue Apr 20 2021

.TONIGHT...Northwest winds 15 to 20 knots. Waves 4 to 6 feet.
Waves occasionally around 8 feet.
.WEDNESDAY...North winds 10 to 15 knots becoming northwest 15 to
20 knots late in the afternoon. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots. Waves 5 to
7 feet. Waves occasionally around 10 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. Waves 3 to 5 feet.
.THURSDAY NIGHT...West winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and early morning...then increasing
to 10 to 15 knots after midnight. Waves 2 to 4 feet subsiding to
1 to 3 feet after midnight.
.FRIDAY...West winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the southwest late in the
afternoon. Waves 1 to 3 feet.
.SATURDAY...South winds 5 to 10 knots becoming west 10 to
15 knots in the late evening and early morning. A chance of early
in the morning. A chance of rain. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots until early morning. Waves
4 to 6 feet.


$$

LHZ363-462-210815-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
359 PM EDT Tue Apr 20 2021

.TONIGHT...North winds 5 to 10 knots increasing to 15 to
20 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.WEDNESDAY...North winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then decreasing to 10 to 15 knots
in the afternoon. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots increasing to
15 to 20 knots after midnight. Waves 4 to 6 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west 5 to
10 knots. Waves 3 to 5 feet. Waves occasionally around 8 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. Waves 1 to 3 feet
building to 2 to 4 feet after midnight.
.FRIDAY...Southwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the evening. Waves 2 to 4 feet subsiding to 1 to
3 feet.
.SATURDAY...South winds 5 to 10 knots. A chance of early in the
morning. A chance of rain. Waves 2 feet or less.
.SUNDAY...Northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots until early morning. Waves
5 to 7 feet. Waves occasionally around 10 feet.


$$

LHZ463-464-210815-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
359 PM EDT Tue Apr 20 2021

.TONIGHT...Northeast winds 5 to 10 knots becoming north 10 to
15 knots after midnight. Waves 1 to 3 feet building to 3 to
5 feet after midnight.
.WEDNESDAY...North winds 15 to 20 knots decreasing to 10 to
15 knots late in the afternoon. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and early morning...then
increasing to 10 to 15 knots after midnight. Waves 3 to 5 feet.
.THURSDAY...Northwest winds 10 to 15 knots becoming west 5 to
10 knots early in the afternoon. Waves 3 to 5 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. Waves 1 to 3 feet.
.FRIDAY...West winds 10 to 15 knots becoming southwest 5 to
10 knots. Waves 1 to 3 feet.
.SATURDAY...South winds 5 to 10 knots. A chance of rain. Waves
2 feet or less.
.SUNDAY...Northwest winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots until early morning. Waves 4 to
6 feet. Waves occasionally around 8 feet.


$$

LHZ461-210815-
MAFOR 2021/
HURON NORTH 13720 11810 11110 11810 12710. Waves 3 to 5 feet
tonight. Waves 1 to 3 feet Wednesday. 210406 210305.

HURON SOUTH 11800 15810 11810. A chance of snow Wednesday
morning. Waves 3 to 5 feet tonight. Waves 2 to 4 feet Wednesday.
220204.

$$

SS

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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