544
FZUS63 KDTX 171957
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
357 PM EDT Fri Jul 17 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...Canadian wildfire smoke persists until the overnight
hours as weak low pressure systems approach the region bringing
some showers and thunderstorms. This will be followed by a
secondary low on Saturday tracking across The Straits into
northern Lake Huron with additional unsettled weather.

LHZ361-180400-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
357 PM EDT Fri Jul 17 2026

.TONIGHT...Southeast winds 10 to 15 knots veering to the south
early in the morning. A chance of showers in the evening...then
showers likely and a chance of thunderstorms after midnight.
Smoke. Waves 1 to 3 feet building to 3 to 5 feet early in the
morning.
.SATURDAY...Southwest winds 15 to 20 knots with gusts to around
30 knots veering to the northwest with gusts to around 30 knots
in the afternoon. A chance of showers in the morning. Areas of
smoke. Waves 4 to 6 feet.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots with gusts to
around 30 knots becoming north 5 to 10 knots. Smoke in the
evening. Patchy smoke after midnight. Waves 4 to 6 feet subsiding
to 2 to 4 feet after midnight. Waves occasionally around 8 feet.
.SUNDAY...Light and variable winds. Waves 2 feet or less.
.SUNDAY NIGHT...South winds 5 to 10 knots increasing to 10 to
15 knots after midnight. Waves 2 feet or less.
.MONDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots late in the evening. Showers likely late in the morning.
A chance of thunderstorms. Rain showers late in the afternoon.
Waves 2 to 4 feet building to 4 to 6 feet late in the afternoon.
Waves occasionally around 8 feet.
.TUESDAY...Southwest winds 15 to 20 knots becoming northwest
20 to 25 knots in the late morning and early afternoon...then
increasing to 30 knots . Gusts to 35 knot gales. A chance of
showers. Waves 8 to 12 feet building to 10 to 14 feet . Waves
occasionally around 18 feet.
.WEDNESDAY...Northwest winds to 30 knots decreasing to 15 to
20 knots. Gusts to 35 knot gales. Waves 8 to 12 feet. Waves
occasionally around 15 feet.


$$

LHZ362-363-180400-
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-
357 PM EDT Fri Jul 17 2026

...DENSE SMOKE ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

.TONIGHT...Southeast winds 10 to 15 knots becoming south 15 to
20 knots early in the morning. Smoke. A chance of showers after
midnight. Waves 1 to 3 feet building to 3 to 5 feet after
midnight.
.SATURDAY...Southwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 15 to 20 knots
with gusts to around 30 knots early in the afternoon becoming
northwest 20 to 25 knots with gusts to around 30 knots late in
the afternoon. A chance of showers in the morning. Areas of smoke
in the morning...then patchy smoke in the afternoon. Waves 4 to
6 feet building to 6 to 9 feet in the afternoon. Waves
occasionally around 12 feet.
.SATURDAY NIGHT...Northwest winds 20 to 25 knots with gusts to
around 30 knots becoming northwest 20 to 25 knots. Patchy smoke.
Waves 5 to 7 feet. Waves occasionally around 10 feet.
.SUNDAY...North winds 5 to 10 knots early in the morning becoming
light and variable. Waves 2 to 4 feet subsiding to 1 to 3 feet in
the late morning and afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots veering to the southeast
by midnight...then becoming south 10 to 15 knots after midnight.
Waves 2 feet or less.
.MONDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots with gusts to around 30 knots late in the morning...then
becoming south 20 to 25 knots with gusts to around 30 knots late
in the afternoon decreasing to 15 to 20 knots with gusts to
around 30 knots late in the evening. A chance of showers late in
the morning. Rain showers late in the afternoon. Waves 2 to
4 feet building to 6 to 9 feet. Waves occasionally around
12 feet.
.TUESDAY...Southwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the late morning and
early afternoon...then becoming northwest 20 to 25 knots with
gusts to 40 knot gales early in the evening increasing to
30 knots with gusts to 35 knot gales by midnight. A chance of
showers. Waves 8 to 12 feet building to 10 to 14 feet . Waves
occasionally around 18 feet.
.WEDNESDAY...Northwest winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots. A chance of showers early in
the morning. Waves 8 to 12 feet. Waves occasionally around
15 feet.


$$

LHZ462>464-180400-
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-
357 PM EDT Fri Jul 17 2026

...DENSE SMOKE ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and overnight. Smoke. Waves 1 to
3 feet building to 2 to 4 feet after midnight.
.SATURDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then becoming west 10 to 15 knots
early in the afternoon becoming northwest 15 to 20 knots with
gusts to around 30 knots late in the afternoon. A chance of
thunderstorms in the morning...then a chance of showers and
thunderstorms in the afternoon. Patchy smoke in the afternoon.
Waves 3 to 5 feet.
.SATURDAY NIGHT...North winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. Patchy smoke. Waves 6 to
9 feet. Waves occasionally around 12 feet.
.SUNDAY...North winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. Waves 3 to 5 feet subsiding to
1 to 3 feet early in the afternoon.
.SUNDAY NIGHT...Light and variable winds becoming southeast 5 to
10 knots by midnight...then veering to the south after midnight.
Waves 2 feet or less.
.MONDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to around 30 knots late in the afternoon. Showers late
in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet.
.TUESDAY...Southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then becoming
northwest 15 to 20 knots with gusts to 35 knot gales early in the
evening increasing to 20 to 25 knots with gusts to 35 knot gales
by midnight. Showers early in the morning. A chance of
thunderstorms. A chance of showers . Waves 3 to 5 feet building
to 8 to 12 feet . Waves occasionally around 15 feet.
.WEDNESDAY...Northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots with gusts to around
30 knots . A chance of showers early in the morning. Waves 6 to
9 feet. Waves occasionally around 11 feet.


$$

LHZ461-180400-
MAFOR 1721/
HURON NORTH 11300 11310 12410 11516 11620 12730. A chance of
thunderstorms overnight and Saturday morning. Waves 1 to 3 feet
building to 2 to 4 feet tonight. Waves 2 to 4 feet building to 4
to 6 feet. Occasional wave height around 8 feet Saturday.

HURON SOUTH 11300 11310 11410 13510 11610 11720. Waves 2
feet or less building to 1 to 3 feet...THEN building to 2 to 4
feet tonight. Waves 3 to 5 feet Saturday.

$$

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)