437
FZUS63 KDTX 230123
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
923 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, will break down into
Saturday. A cold front then brings showers and a few
thunderstorms to the region with time. A cooler airmass settles
over the Great Lakes to close out the weekend, with some lake
effect rain showers and the potential for a few waterspouts,
mainly Monday and Tuesday.

LHZ361-362-230930-
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-
923 PM EDT Fri Aug 22 2025

.REST OF TONIGHT...South winds 5 to 10 knots. 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 1 to 3 feet
building to 3 to 5 feet early in the afternoon.
.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.


$$

LHZ363-230930-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
923 PM EDT Fri Aug 22 2025

.REST OF TONIGHT...South winds 10 to 15 knots. 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>464-230930-
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-
923 PM EDT Fri Aug 22 2025

.REST OF TONIGHT...South winds 5 to 10 knots increasing to 10 to
15 knots after midnight. Waves 1 to 3 feet.
.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 1 to 3 feet building to 2 to 4 feet in
the late evening and overnight.
.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.


$$

LHZ461-230930-
MAFOR 2303/
HURON NORTH 11400 12500 12510 11500 11610 11710. A chance of
waterspouts Saturday. A chance of showers Saturday morning then
a chance of showers and thunderstorms Saturday afternoon. A
chance of showers and thunderstorms Saturday evening. Waves 1 to
3 feet.

HURON SOUTH 11410 15510 11700. A chance of showers and
thunderstorms Saturday afternoon and Saturday evening. Waves 1 to
3 feet.

$$

SC

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)