858
FZUS63 KDTX 310743
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
343 AM EDT Fri Jul 31 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...High pressure, 30.30 inches, governs Great Lakes
conditions today. Low pressure then tracks into the Ohio Valley
this weekend, with local pressure averaging around 29.90 inches.
This brings rain and isolated thunderstorm chances to the Great
Lakes Friday night into Sunday along with elevated winds and
waves into Saginaw Bay and the Thumb nearshores.

LHZ361-311600-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
343 AM EDT Fri Jul 31 2026

.TODAY...Southwest winds 5 to 10 knots veering to the west late
in the afternoon. A chance of showers in the afternoon. Waves
2 feet or less.
.TONIGHT...West winds 5 to 10 knots. A chance of showers after
midnight. Waves 2 feet or less.
.SATURDAY...North winds 5 to 10 knots early in the morning
becoming light and variable. A chance of showers in the morning...
then showers in the afternoon. Waves 2 feet or less.
.SATURDAY NIGHT...Light and variable winds becoming northeast
10 to 15 knots. Showers likely in the evening. Waves 2 feet or
less.
.SUNDAY...Northeast winds 10 to 15 knots decreasing to 5 to
10 knots. Waves 2 feet or less.
.MONDAY...Northeast winds 5 to 10 knots early in the morning
becoming light and variable. Waves 2 feet or less.
.TUESDAY...South winds 5 to 10 knots backing to the southeast .
Waves 2 feet or less.


$$

LHZ362-363-311600-
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-
343 AM EDT Fri Jul 31 2026

.TODAY...Light and variable winds becoming south 5 to 10 knots in
the late morning and early afternoon...then backing to the
southeast late in the afternoon. Waves 2 feet or less.
.TONIGHT...Light and variable winds becoming south 5 to 10 knots
in the late evening and overnight. A chance of showers. Waves
2 feet or less.
.SATURDAY...Light and variable winds. A chance of showers. Waves
2 feet or less.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Showers in the
evening...then a chance of showers after midnight. Waves 2 feet
or less.
.SUNDAY...Northeast winds 10 to 15 knots becoming north 5 to
10 knots late in the afternoon. A chance of showers in the
morning. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the
evening.
.MONDAY...North winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY...Light and variable winds becoming north 5 to 10 knots
in the late morning and early afternoon...then veering to the
southeast . Waves 2 feet or less.


$$

LHZ462>464-311600-
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-
343 AM EDT Fri Jul 31 2026

.TODAY...Light and variable winds becoming south 5 to 10 knots
late in the morning...then becoming light and variable early in
the afternoon becoming southeast 5 to 10 knots late in the
afternoon. Waves 2 feet or less.
.TONIGHT...Light and variable winds becoming north 5 to 10 knots
after midnight. A chance of showers after midnight. Waves 2 feet
or less.
.SATURDAY...North winds 5 to 10 knots. A chance of showers in the
morning...then showers likely in the afternoon. Waves 2 feet or
less.
.SATURDAY NIGHT...North winds 5 to 10 knots. Showers likely.
Waves 1 to 3 feet.
.SUNDAY...Northeast winds 10 to 15 knots becoming north 15 to
20 knots with gusts to around 30 knots late in the morning...then
decreasing to 10 to 15 knots late in the evening. Showers likely
in the morning...then a chance of showers late in the morning.
Waves 1 to 3 feet building to 3 to 5 feet.
.MONDAY...North winds 10 to 15 knots decreasing to 5 to 10 knots.
Waves 1 to 3 feet.
.TUESDAY...East winds 5 to 10 knots. Waves 2 feet or less.


$$

LHZ461-311600-
MAFOR 3109/
HURON NORTH 13500 11600 11500 11600 11706 11700. A chance of
thunderstorms this evening. Waves 2 feet or less.

HURON SOUTH 13500 12400 11600 12800. A chance of showers
tonight. Waves 2 feet or less.

$$

TF

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)