158
FZUS63 KDTX 210808
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
408 AM EDT Fri Aug 21 2026

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, 30.00 inches, maintains influence
across the central and eastern Great Lakes today. The next low
pressure system then arrives Saturday, dragging a cold front
across the area and increasing shower and thunderstorm chances.
Post-frontal northwest flow leads to gusty winds Sunday.

LHZ361>363-211615-
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-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
408 AM EDT Fri Aug 21 2026

.TODAY...South winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and afternoon. A chance of showers
in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in
the afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. A chance of showers. A
chance of waterspouts after midnight. Waves 3 to 5 feet.
.SATURDAY...Southwest winds 5 to 10 knots veering to the west
early in the afternoon. A chance of waterspouts in the morning. A
chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet in
the late morning and afternoon.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. A chance of
showers. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.SUNDAY...Northwest winds 20 to 25 knots decreasing to 15 to
20 knots late in the evening. Gusts to 30 knots. A chance of
showers in the morning. A chance of waterspouts in the morning.
Waves 8 to 12 feet. Waves occasionally around 15 feet.
.MONDAY...Northwest winds 15 to 20 knots decreasing to 5 to
10 knots. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.TUESDAY...West winds 5 to 10 knots backing to the south . Waves
1 to 3 feet.


$$

LHZ462>464-211615-
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-
408 AM EDT Fri Aug 21 2026

.TODAY...Southeast winds 5 to 10 knots. Waves 2 feet or less.
.TONIGHT...Southeast winds 10 to 15 knots. A chance of showers
after midnight. Waves 1 to 3 feet.
.SATURDAY...South winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. A chance of showers
in the morning...then showers and a chance of thunderstorms in
the afternoon. A chance of waterspouts. Waves 1 to 3 feet.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots increasing to
15 to 20 knots in the late evening and overnight. Showers likely.
Waves 1 to 3 feet building to 4 to 6 feet in the late evening and
overnight. Waves occasionally around 8 feet.
.SUNDAY...Northwest winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots late in the morning...then decreasing to 15 to 20 knots
with gusts to around 30 knots late in the afternoon. A chance of
waterspouts. Showers likely in the morning. A chance of showers.
Waves 6 to 9 feet. Waves occasionally around 11 feet.
.MONDAY...Northwest winds 15 to 20 knots decreasing to 5 to
10 knots. A chance of showers early in the morning. Waves 4 to
6 feet subsiding to 1 to 3 feet by midnight. Waves occasionally
around 8 feet.
.TUESDAY...West winds 5 to 10 knots backing to the south early in
the evening...then increasing to 10 to 15 knots by midnight.
Waves 2 feet or less.


$$

LHZ461-211615-
MAFOR 2109/
HURON NORTH 11400 12410 13310 11410 11416. A chance of
waterspouts overnight. A chance of thunderstorms tonight. Waves 1
to 3 feet.

HURON SOUTH 13300 13310 12410. A chance of showers overnight.
Waves 2 feet or less today. Waves 1 to 3 feet tonight.

$$

BT

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)