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FZUS63 KDTX 161944
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
344 PM EDT Thu Oct 16 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, 30.20 inches, is now located over
Michigan which will maintain light winds and dry weather today.
This system will wash out into the west Atlantic through the end
of the week while a low pressure system moves from the northern
Plains into west Ontario. This will strengthen the pressure
gradient over the Great Lakes through tomorrow and Saturday,
bringing elevated southwest flow across Lake Huron. Low pressure,
29.20 inches, will then rapidly develop and move over Michigan on
Sunday, bringing the potential for gales across portions of Lake
Huron.

LHZ361-170345-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
344 PM EDT Thu Oct 16 2025

.TONIGHT...Light and variable winds becoming southeast 5 to
10 knots in the late evening and overnight. A chance of showers
in the evening...then showers after midnight. Waves 2 feet or
less.
.FRIDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
in the afternoon. Showers in the morning...then a chance of
showers in the afternoon. Waves 1 to 3 feet building to 5 to
7 feet. Waves occasionally around 10 feet.
.FRIDAY NIGHT...South winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. A chance of showers. Waves 6 to 9 feet.
Waves occasionally around 12 feet.
.SATURDAY...South winds 10 to 15 knots decreasing to 5 to
10 knots early in the afternoon. Showers likely. Waves 4 to
6 feet. Waves occasionally around 8 feet.
.SATURDAY NIGHT...South winds 5 to 10 knots. Showers likely and a
chance of thunderstorms in the evening...then showers and a
chance of thunderstorms after midnight. Waves 3 to 5 feet
subsiding to 1 to 3 feet in the late evening and overnight.
.SUNDAY...North winds 10 to 15 knots becoming northwest 20 to
25 knots with gusts to 40 knot gales late in the morning...then
increasing to 30 knots with gusts to 40 knot gales late in the
afternoon decreasing to 20 to 25 knots with gusts to around
30 knots late in the evening. Showers. A chance of thunderstorms.
Rain showers likely late in the afternoon. Waves 2 to 4 feet
building to 6 to 9 feet. Waves occasionally around 12 feet.
.MONDAY...West winds 10 to 15 knots backing to the south in the
late evening and early morning. Waves 4 to 6 feet subsiding to
1 to 3 feet in the late evening and early morning. Waves
occasionally around 8 feet.
.TUESDAY...South winds 15 to 20 knots with gusts to 35 knot gales
becoming southwest 20 to 25 knots with gusts to 40 knot gales
early in the evening...then veering to the northwest with gusts
to 35 knot gales in the late evening and early morning. A chance
of showers early in the morning...then showers likely. Waves 2 to
4 feet building to 5 to 7 feet. Waves occasionally around
10 feet.


$$

LHZ362-363-170345-
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-
344 PM EDT Thu Oct 16 2025

.TONIGHT...Light and variable winds becoming south 5 to 10 knots
after midnight. A chance of showers. Waves 2 feet or less.
.FRIDAY...South winds 10 to 15 knots increasing to 20 to 25 knots
with gusts to around 30 knots. Showers in the morning...then a
chance of showers in the afternoon. Waves 1 to 3 feet building to
6 to 9 feet. Waves occasionally around 12 feet.
.FRIDAY NIGHT...South winds 20 to 25 knots with gusts to around
30 knots. A chance of showers. Waves 8 to 12 feet. Waves
occasionally around 15 feet.
.SATURDAY...South winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots early in the afternoon. A
chance of showers in the morning...then showers likely in the
afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots. Showers in the
evening...then showers and a chance of thunderstorms after
midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.SUNDAY...South winds 15 to 20 knots becoming west to 30 knots
with gusts to 35 knot gales late in the morning...then becoming
northwest at 35 knot gales with gusts to 40 knot gales late in
the afternoon decreasing to 30 knots with gusts to 35 knot gales
late in the evening. A chance of thunderstorms. Rain showers...
then showers likely late in the evening. Waves 4 to 6 feet
building to 8 to 12 feet. Waves occasionally around 15 feet. A
gale warning may be needed.
.MONDAY...West winds 15 to 20 knots backing to the southwest
until early morning. A chance of showers early in the morning.
Waves 8 to 12 feet subsiding to 4 to 6 feet until early morning.
Waves occasionally around 15 feet.
.TUESDAY...South winds 20 to 25 knots increasing to 30 knots with
gusts to 35 knot gales until early evening...then veering to the
west with gusts to 35 knot gales in the late evening and early
morning. A chance of showers until afternoon...then showers
likely until early morning. Waves 3 to 5 feet building to 6 to
9 feet. Waves occasionally around 12 feet.


$$

LHZ462>464-170345-
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-
344 PM EDT Thu Oct 16 2025

.TONIGHT...North winds 5 to 10 knots early in the evening
becoming light and variable...then becoming southeast 5 to
10 knots early in the morning. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots increasing to 15 to 20 knots.
Showers likely in the morning...then a chance of showers in the
afternoon. Waves 1 to 3 feet building to 3 to 5 feet in the
afternoon.
.FRIDAY NIGHT...South winds 15 to 20 knots increasing to 20 to
25 knots after midnight. A chance of showers. Waves 5 to 7 feet.
Waves occasionally around 10 feet.
.SATURDAY...South winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and afternoon. A chance of showers
in the morning...then showers likely in the afternoon. Waves 5 to
7 feet. Waves occasionally around 10 feet.
.SATURDAY NIGHT...South winds 15 to 20 knots. Showers likely and
a chance of thunderstorms in the evening...then showers and a
chance of thunderstorms after midnight. Waves 3 to 5 feet.
.SUNDAY...South winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to 40 knot gales late in the morning...then
becoming northwest to 30 knots with gusts to 40 knot gales late
in the afternoon. A chance of thunderstorms. Rain showers...then
a chance of showers late in the evening. Waves 5 to 7 feet
building to 8 to 12 feet late in the afternoon. Waves
occasionally around 15 feet.
.MONDAY...Northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots until early evening...then
backing to the south in the late evening and early morning. A
chance of showers early in the morning. Waves 6 to 9 feet
subsiding to 3 to 5 feet in the late evening and early morning.
Waves occasionally around 12 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest to
30 knots with gusts to 40 knot gales. A chance of showers until
afternoon...then showers likely until early morning. Waves 4 to
6 feet building to 6 to 9 feet until early morning. Waves
occasionally around 12 feet.


$$

LHZ461-170345-
MAFOR 1621/
HURON NORTH 11700 11500 11400 12406 11416 11426 11430.
Waves 2 feet or less tonight. Waves 2 feet or less building to 3
to 5 feet...THEN building to 6 to 9 feet. Occasional wave height
around 12 feet Friday.

HURON SOUTH 11800 11100 11300 12400 12416 11420. Waves 2
feet or less tonight. Waves 2 feet or less building to 2 to 4
feet...THEN building to 3 to 5 feet Friday.

$$

AM

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)