484
FZUS63 KDTX 311933
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
333 PM EDT Sun Aug 31 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, 30.30 inches, will remain centered over
the Great Lakes today through Tuesday, providing tranquil boating
conditions. Deepening low pressure is forecast across the
northern Great Lakes Wednesday which will drive a strong cold
front across Lake Huron. This system will cause an increase in
winds and waves and provide rain to the region late Wednesday and
Wednesday night.

LHZ361-010345-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
333 PM EDT Sun Aug 31 2025

.TONIGHT...Light and variable winds. Waves 2 feet or less.
.MONDAY...Light and variable winds becoming east 5 to 10 knots
late in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...East winds 5 to 10 knots early in the evening
becoming light and variable. Waves 2 feet or less.
.TUESDAY...Light and variable winds. Waves 2 feet or less.
.TUESDAY NIGHT...Light and variable winds becoming south 5 to
10 knots in the late evening and overnight. Waves 2 feet or less.
.WEDNESDAY...South winds 5 to 10 knots becoming southwest 15 to
20 knots. A chance of showers late in the morning. Rain showers
likely late in the evening. Waves 2 feet or less building to 3 to
5 feet.
.THURSDAY...West winds 15 to 20 knots with gusts to around
30 knots becoming southwest 10 to 15 knots in the late evening
and early morning. A chance of showers. Waves 4 to 6 feet. Waves
occasionally around 8 feet.
.FRIDAY...Southwest winds 15 to 20 knots. Gusts to 30 knots until
early evening. A chance of showers early in the morning...then
showers likely until early evening. A chance of showers in the
late evening and early morning. Waves 3 to 5 feet.


$$

LHZ362-363-010345-
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-
333 PM EDT Sun Aug 31 2025

.TONIGHT...Light and variable winds. Waves 2 feet or less.
.MONDAY...Light and variable winds. Waves 2 feet or less.
.MONDAY NIGHT...Light and variable winds. Waves 2 feet or less.
.TUESDAY...Light and variable winds. Waves 2 feet or less.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots veering to the
south after midnight. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. A chance of showers late in the
afternoon. Rain showers likely late in the evening. Waves 1 to
3 feet building to 4 to 6 feet. Waves occasionally around 8 feet.
.THURSDAY...Southwest winds 15 to 20 knots veering to the west
with gusts to around 30 knots. Showers likely early in the
morning...then a chance of showers until early evening. Waves
5 to 7 feet. Waves occasionally around 10 feet.
.FRIDAY...Southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 35 knot gales until early evening...then
decreasing to 15 to 20 knots in the late evening and early
morning. A chance of showers. Waves 6 to 9 feet. Waves
occasionally around 12 feet.


$$

LHZ462>464-010345-
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-
333 PM EDT Sun Aug 31 2025

.TONIGHT...Light and variable winds becoming northeast 5 to
10 knots in the late evening and early morning...then veering to
the east early in the morning. Waves 2 feet or less.
.MONDAY...Light and variable winds. Waves 2 feet or less.
.MONDAY NIGHT...Northeast winds 5 to 10 knots until early morning
becoming light and variable. Waves 2 feet or less.
.TUESDAY...Light and variable winds. Waves 2 feet or less.
.TUESDAY NIGHT...Light and variable winds becoming south 5 to
10 knots in the late evening and overnight. Waves 2 feet or less.
.WEDNESDAY...South winds 5 to 10 knots increasing to 15 to
20 knots. A chance of showers late in the afternoon. Rain showers
likely late in the evening. Waves 1 to 3 feet building to 3 to
5 feet late in the afternoon.
.THURSDAY...Southwest winds 15 to 20 knots veering to the west
with gusts to around 30 knots until early morning. Showers likely
early in the morning. A chance of showers early in the evening.
Waves 4 to 6 feet. Waves occasionally around 8 feet.
.FRIDAY...Southwest winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to 35 knot gales
early in the evening...then decreasing to 15 to 20 knots in the
late evening and early morning. A chance of showers until early
morning. Waves 4 to 6 feet.


$$

LHZ461-010345-
MAFOR 3121/
HURON NORTH 15400 11400 11300. Waves nearly calm.

HURON SOUTH 11100 13200 14300. Waves 2 feet or less.

$$

SF

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)