250
FZUS63 KDTX 171934
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
334 PM EDT Mon Aug 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...Diffuse area of high pressure, 30.00 inches, will hold
across the Great Lakes through tomorrow morning. A cold front
will then push across the region tomorrow afternoon through
tomorrow evening. This will bring showers and thunderstorms and
will veer winds from southwest to northwest in the wake of the
front.

LHZ361-180345-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
334 PM EDT Mon Aug 17 2026

.TONIGHT...West winds 5 to 10 knots early in the evening becoming
light and variable...then becoming southwest 5 to 10 knots after
midnight. Waves 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots veering to the west
late in the afternoon. A chance of showers and thunderstorms in
the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. A chance of showers and
thunderstorms in the evening...then a chance of showers after
midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming west 10 to
15 knots early in the afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...West winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. Waves 1 to
3 feet.
.THURSDAY...Northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming southwest 5 to 10 knots late
in the afternoon backing to the south. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots. A chance of showers in the
late morning and early afternoon. Rain showers likely early in
the evening...then a chance of showers by midnight. Waves 2 feet
or less.
.SATURDAY...Southwest winds 5 to 10 knots becoming north 10 to
15 knots . A chance of showers. A chance of thunderstorms early
in the evening. Waves 1 to 3 feet.


$$

LHZ362-363-180345-
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-
334 PM EDT Mon Aug 17 2026

.TONIGHT...Light and variable winds becoming southwest 5 to
10 knots early in the morning. Waves 2 feet or less.
.TUESDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. A chance of showers
and thunderstorms in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...North winds 5 to 10 knots backing to the west by
midnight...then becoming northwest 10 to 15 knots after midnight.
A chance of showers and thunderstorms in the evening...then a
chance of showers after midnight. Waves 1 to 3 feet.
.WEDNESDAY...North winds 5 to 10 knots veering to the northeast
early in the afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 5 to 10 knots backing to the
northwest after midnight. Waves 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming north 5 to 10 knots late in
the afternoon veering to the southeast. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots increasing to 10 to 15 knots.
A chance of showers . Waves 1 to 3 feet.
.SATURDAY...Southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then veering
to the southwest 5 to 10 knots early in the evening increasing to
10 to 15 knots by midnight. A chance of showers. Waves 1 to
3 feet building to 2 to 4 feet by midnight.


$$

LHZ462>464-180345-
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-
334 PM EDT Mon Aug 17 2026

.TONIGHT...North winds 5 to 10 knots early in the evening
becoming light and variable. Waves 2 feet or less.
.TUESDAY...Southwest winds 5 to 10 knots backing to the south
late in the afternoon. Waves 2 feet or less.
.TUESDAY NIGHT...South winds 5 to 10 knots becoming west 10 to
15 knots after midnight. A chance of showers and thunderstorms in
the evening...then showers likely after midnight. Waves 1 to
3 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late morning and afternoon. A chance of showers
in the morning. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Light and variable winds becoming east 5 to
10 knots after midnight. Waves 2 feet or less.
.THURSDAY...East winds 5 to 10 knots backing to the north late in
the morning...then veering to the east late in the evening. Waves
2 feet or less.
.FRIDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
by midnight. A chance of showers by midnight. Waves 2 feet or
less.
.SATURDAY...Southwest winds 5 to 10 knots becoming west 10 to
15 knots by midnight. A chance of showers early in the morning.
Rain showers likely until early evening...then a chance of
showers by midnight. Waves 2 feet or less.


$$

LHZ461-180345-
MAFOR 1721/
HURON NORTH 13600 14500 11506. A chance of thunderstorms
Tuesday afternoon. Waves 2 feet or less.

HURON SOUTH 12800 11600 14500 11400. Waves 2 feet or less.

$$

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)