767
FZUS63 KDTX 221950
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
350 PM EDT Fri Aug 22 2025

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, 30.10 inches, maintains light southerly
winds today, veering southwesterly into Saturday. A cold front
then brings showers and a few thunderstorms to the region with
time on Saturday. A cooler airmass settles over the Great Lakes
to close out the weekend, with some lake effect rain showers and
potential for waterspouts Monday and Tuesday.

LHZ361-362-230400-
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-
350 PM EDT Fri Aug 22 2025

.TONIGHT...South winds 5 to 10 knots veering to the southwest
early in the morning. A chance of showers and thunderstorms after
midnight. Waves 1 to 3 feet.
.SATURDAY...Southwest winds 10 to 15 knots. A chance of showers.
A chance of waterspouts in the afternoon. Waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots veering to the
west in the late evening and overnight. A chance of waterspouts
in the evening. Waves 2 to 4 feet.
.SUNDAY...West winds 10 to 15 knots. A chance of showers in the
morning...then showers likely in the afternoon. Waves 2 to
4 feet.
.SUNDAY NIGHT...West winds 15 to 20 knots. A chance of showers.
Waves 3 to 5 feet.
.MONDAY...Northwest winds 20 to 25 knots decreasing to 15 to
20 knots late in the evening. Gusts to 35 knot gales. A chance of
showers. Waves 6 to 9 feet. Waves occasionally around 12 feet.
.TUESDAY...Northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the late evening and
early morning. Waves 5 to 7 feet. Waves occasionally around
10 feet.
.WEDNESDAY...West winds 10 to 15 knots backing to the southwest
until early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet
until early morning.


$$

LHZ363-230400-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
350 PM EDT Fri Aug 22 2025

.TONIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and overnight. Waves 1 to 3 feet.
.SATURDAY...Southwest winds 10 to 15 knots. A chance of showers
in the morning...then a chance of showers and thunderstorms in
the afternoon. A chance of waterspouts in the afternoon. Waves
2 to 4 feet.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots veering to the
northwest in the late evening and early morning...then decreasing
to 5 to 10 knots after midnight. A chance of waterspouts in the
evening. Waves 1 to 3 feet.
.SUNDAY...West winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. A chance of showers in the
afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...West winds 10 to 15 knots becoming northwest
15 to 20 knots in the late evening and overnight. A chance of
waterspouts in the evening. A chance of showers. Waves 2 to
4 feet.
.MONDAY...West winds 15 to 20 knots becoming northwest 20 to
25 knots with gusts to around 30 knots. A chance of showers.
Waves 4 to 6 feet building to 6 to 9 feet late in the afternoon.
Waves occasionally around 12 feet.
.TUESDAY...Northwest winds 15 to 20 knots. Waves 5 to 7 feet.
Waves occasionally around 10 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and early afternoon...then backing
to the southwest until early morning. Waves 3 to 5 feet subsiding
to 1 to 3 feet until early morning.


$$

LHZ462>464-230400-
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-
350 PM EDT Fri Aug 22 2025

.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots after midnight. Waves 2 feet or less.
.SATURDAY...Southwest winds 10 to 15 knots. A chance of showers
and thunderstorms in the afternoon. A chance of waterspouts in
the afternoon. Waves 1 to 3 feet.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots becoming west
5 to 10 knots after midnight. A chance of showers and
thunderstorms in the evening. Waves 1 to 3 feet.
.SUNDAY...West winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. A chance of showers in the
afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...West winds 10 to 15 knots increasing to 15 to
20 knots after midnight. A chance of waterspouts in the evening.
A chance of showers. Waves 2 to 4 feet.
.MONDAY...Northwest winds 15 to 20 knots. Gusts to 30 knots. A
chance of showers. Waves 3 to 5 feet building to 6 to 9 feet late
in the afternoon. Waves occasionally around 12 feet.
.TUESDAY...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.
.WEDNESDAY...West winds 10 to 15 knots backing to the southwest
in the late evening and early morning. Waves 3 to 5 feet
subsiding to 1 to 3 feet until early morning.


$$

LHZ461-230400-
MAFOR 2221/
HURON NORTH 13400 12500 12510 11500. A chance of waterspouts
Saturday. A chance of showers Saturday. Waves 1 to 3 feet.

HURON SOUTH 12400 11410 14510 11510. A chance of showers
Saturday afternoon. Waves 1 to 3 feet.

$$

KGK

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)