463
FZUS63 KDTX 200758
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
358 AM EDT Wed Aug 20 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...Northeast winds prevail through Thursday as high
pressure, 30.20 inches, builds into the northern Great Lakes. The
high weakens as it drops into the lower Great Lakes Friday. A
cold front brings showers and a few thunderstorms to the region
this weekend.

LHZ361-201600-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
358 AM EDT Wed Aug 20 2025

.TODAY...North winds 5 to 10 knots until late afternoon becoming
light and variable. Waves 2 feet or less.
.TONIGHT...Light and variable winds becoming north 5 to 10 knots
after midnight...then becoming light and variable early in the
morning. Waves 2 feet or less.
.THURSDAY...Light and variable winds. Waves 2 feet or less.
.THURSDAY NIGHT...Light and variable winds. Waves 2 feet or less.
.FRIDAY...Light and variable winds becoming south 5 to 10 knots
late in the evening. A chance of showers and thunderstorms late
in the evening. Waves 2 feet or less.
.SATURDAY...Southwest winds 10 to 15 knots veering to the west
until early morning. A chance of showers and thunderstorms. Waves
1 to 3 feet building to 3 to 5 feet until early morning.
.SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to 30 knots. Showers likely. A chance of showers in
the late evening and early morning. Waves 3 to 5 feet building to
5 to 7 feet. Waves occasionally around 10 feet.


$$

LHZ362-363-201600-
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-
358 AM EDT Wed Aug 20 2025

.TODAY...North winds 15 to 20 knots decreasing to 10 to 15 knots
in the afternoon. Waves 2 to 4 feet.
.TONIGHT...North winds 5 to 10 knots. Waves 2 to 4 feet subsiding
to 1 to 3 feet after midnight.
.THURSDAY...Northeast winds 5 to 10 knots. Waves 1 to 3 feet.
.THURSDAY NIGHT...Light and variable winds. Waves 2 feet or less.
.FRIDAY...Light and variable winds becoming south 5 to 10 knots
late in the afternoon...then increasing to 10 to 15 knots late in
the evening. Waves 2 feet or less.
.SATURDAY...Southwest winds 10 to 15 knots veering to the west in
the late evening and early morning. A chance of showers early in
the morning. A chance of thunderstorms until early evening. Rain
showers likely early in the evening. Waves 2 to 4 feet.
.SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots.
A chance of showers. Waves 4 to 6 feet building to 5 to 7 feet
until early morning. Waves occasionally around 10 feet.


$$

LHZ462>464-201600-
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-
358 AM EDT Wed Aug 20 2025

.TODAY...North winds 15 to 20 knots. Waves 3 to 5 feet.
.TONIGHT...North winds 15 to 20 knots becoming northeast 10 to
15 knots in the late evening and early morning...then decreasing
to 5 to 10 knots early in the morning. Waves 3 to 5 feet
subsiding to 2 to 4 feet early in the morning.
.THURSDAY...Northeast winds 10 to 15 knots backing to the north
early in the afternoon. Waves 1 to 3 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. Waves 1 to
3 feet.
.FRIDAY...Light and variable winds becoming south 5 to 10 knots
late in the evening. Waves 2 feet or less.
.SATURDAY...Southwest winds 10 to 15 knots becoming south 5 to
10 knots early in the evening...then becoming west 10 to 15 knots
in the late evening and early morning. A chance of showers. A
chance of thunderstorms until early evening. Waves 1 to 3 feet.
.SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots
with gusts to around 30 knots until early morning. Waves 3 to
5 feet.


$$

LHZ461-201600-
MAFOR 2009/
HURON NORTH 12110 11100 11800 12700 12100. Waves 2 feet or
less.

HURON SOUTH 11120 13820 11810 12110 11100. Waves 2 to 4 feet.

$$

MV

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)