187
FZUS63 KDTX 200135
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
935 PM EDT Tue Aug 19 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 wind prevails through Wednesday and Thursday
as high pressure builds in across the northern Great Lakes and
Tropical System Erin tracks offshore of the eastern seaboard.
This high passes overhead Friday before the next cold front
arrives on Saturday.

LHZ361-200945-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
935 PM EDT Tue Aug 19 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots. Waves 1 to
3 feet.
.WEDNESDAY...Northeast winds 5 to 10 knots in the morning
becoming light and variable. Waves 2 feet or less.
.WEDNESDAY NIGHT...Light and variable winds becoming north 5 to
10 knots in the late evening and early morning...then becoming
light and variable after midnight. 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...South winds 5 to 10 knots in the morning becoming light
and variable...then becoming southeast 5 to 10 knots late in the
afternoon veering to the south. A chance of showers late in the
afternoon. Waves 2 feet or less.
.SATURDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots with gusts to around 30 knots early in the evening...
then decreasing to 10 to 15 knots in the late evening and early
morning. A chance of showers early in the morning. 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 35 knot gales in the late morning and early
afternoon...then increasing to 20 to 25 knots with gusts to
35 knot gales early in the evening decreasing to 15 to 20 knots
with gusts to around 30 knots in the late evening and early
morning. A chance of showers. Waves 3 to 5 feet building to 5 to
7 feet. Waves occasionally around 10 feet.


$$

LHZ362-363-200945-
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-
935 PM EDT Tue Aug 19 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots becoming north
10 to 15 knots early in the morning. Waves 1 to 3 feet.
.WEDNESDAY...North winds 10 to 15 knots. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...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 10 to 15 knots.
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. A chance
of thunderstorms 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 until early evening. Waves 4 to 6 feet
building to 5 to 7 feet until early morning. Waves occasionally
around 10 feet.


$$

LHZ462>464-200945-
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-
935 PM EDT Tue Aug 19 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots increasing to
10 to 15 knots early in the morning. Waves 1 to 3 feet.
.WEDNESDAY...Northeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots becoming northeast
5 to 10 knots. Waves 3 to 5 feet.
.THURSDAY...Northeast winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. Waves 1 to 3 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots becoming east 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 decreasing to 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. Waves
1 to 3 feet.
.SUNDAY...West winds 10 to 15 knots. Waves 3 to 5 feet.


$$

LHZ461-200945-
MAFOR 2003/
HURON NORTH 13100 11110 11100 11800 12700. Waves 2 feet or
less.

HURON SOUTH 12100 11110 11120 11110 12810 11110. Waves 2
feet or less overnight. Waves 2 to 4 feet Wednesday and Wednesday
evening.

$$

SC

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)