764
FZUS63 KDTX 310735
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
335 AM 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.

LHZ361-311545-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
335 AM EDT Sun Aug 31 2025

.TODAY...Southwest winds 5 to 10 knots early in the morning
becoming light and variable. Waves 2 feet or less.
.TONIGHT...Light and variable winds. Waves 2 feet or less.
.MONDAY...Light and variable winds. Waves 2 feet or less.
.MONDAY NIGHT...Southeast winds 5 to 10 knots early in the
evening becoming light and variable. Waves 2 feet or less.
.TUESDAY...Light and variable winds becoming south 5 to 10 knots
late in the evening. Waves 2 feet or less.
.WEDNESDAY...South winds 5 to 10 knots increasing to 10 to
15 knots until early evening...then becoming northwest 15 to
20 knots in the late evening and early morning. A chance of
showers early in the morning. A chance of thunderstorms in the
late morning and early afternoon...then showers likely until
early morning. Waves 2 feet or less building to 3 to 5 feet.
.THURSDAY...West 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 with gusts to around 30 knots in the
late evening and early morning. Showers likely early in the
morning...then a chance of showers in the late morning and early
afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet.


$$

LHZ362-363-311545-
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-
335 AM EDT Sun Aug 31 2025

.TODAY...Southwest winds 5 to 10 knots early in the morning
becoming light and variable. Waves 2 feet or less.
.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 becoming south 5 to 10 knots
late in the afternoon. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots increasing to 15 to
20 knots until early morning. A chance of showers and
thunderstorms early in the evening. Rain showers likely and a
chance of thunderstorms in the late evening and early morning.
Waves 1 to 3 feet building to 4 to 6 feet. Waves occasionally
around 8 feet.
.THURSDAY...West winds 20 to 25 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots in the late evening and early
morning. Showers likely early in the morning...then a chance of
showers until early evening. Waves 8 to 12 feet. Waves
occasionally around 15 feet.


$$

LHZ462>464-311545-
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-
335 AM EDT Sun Aug 31 2025

.TODAY...Light and variable winds. Waves 2 feet or less.
.TONIGHT...Light and variable winds becoming northeast 5 to
10 knots in the late evening and early morning...then becoming
light and variable 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 becoming south 5 to 10 knots
late in the evening. Waves 2 feet or less.
.WEDNESDAY...South winds 5 to 10 knots increasing to 15 to
20 knots. A chance of showers in the late evening and early
morning. Waves 1 to 3 feet building to 4 to 6 feet until early
morning. Waves occasionally around 8 feet.
.THURSDAY...West winds 20 to 25 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots in the late evening and early
morning. Showers likely until afternoon...then a chance of
showers early in the evening. Waves 6 to 9 feet. Waves
occasionally around 12 feet.


$$

LHZ461-311545-
MAFOR 3109/
HURON NORTH 13600 11500 14400. Waves 2 feet or less.

HURON SOUTH 11600 11700 11600 11500 11300 12200 11300.
Waves nearly calm.

$$

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)