948
FZUS63 KDTX 161940
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
340 PM EDT Wed Jul 16 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...A hybrid cold front and low pressure trough, averaging
29.80 inches, moves through the Great Lakes today and Thursday
which brings showers and thunderstorms to the marine zones.
Strong to severe thunderstorms will be possible this afternoon
and evening. North-northwest winds behind this system will
increase on Thursday, ranging from 20 to 25 knots.

LHZ361-362-170400-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond
5NM off shore-
340 PM EDT Wed Jul 16 2025

.TONIGHT...Northeast winds 5 to 10 knots. A chance of showers and
thunderstorms in the evening...then showers and a chance of
thunderstorms after midnight. Waves 1 to 3 feet.
.THURSDAY...North winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. Showers in the morning. Waves 1 to
3 feet building to 3 to 5 feet in the late morning and afternoon.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots. Waves 3 to
5 feet subsiding to 1 to 3 feet after midnight.
.FRIDAY...Light and variable winds. Waves 2 feet or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots veering to the
south after midnight. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots. A chance of showers. A
chance of thunderstorms late in the morning. Waves 2 feet or
less.
.SUNDAY...Northwest winds 5 to 10 knots backing to the west early
in the evening...then veering to the west 5 to 10 knots in the
late evening and early morning. Waves 2 feet or less.
.MONDAY...East winds 5 to 10 knots. Waves 2 feet or less.


$$

LHZ363-170400-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
340 PM EDT Wed Jul 16 2025

.TONIGHT...Southeast winds 5 to 10 knots. A chance of showers and
thunderstorms in the evening...then showers and a chance of
thunderstorms after midnight. Waves 2 feet or less.
.THURSDAY...North winds 10 to 15 knots becoming northwest 15 to
20 knots in the late morning and afternoon. Waves 1 to 3 feet
building to 3 to 5 feet in the late morning and afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots decreasing to 5 to
10 knots. Waves 4 to 6 feet subsiding to 2 to 4 feet after
midnight. Waves occasionally around 8 feet.
.FRIDAY...North winds 5 to 10 knots early in the morning becoming
light and variable. Waves 2 feet or less.
.FRIDAY NIGHT...Light and variable winds becoming southeast 5 to
10 knots in the late evening and overnight. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots backing to the east late in
the afternoon...then backing to the east 5 to 10 knots late in
the evening. A chance of showers. A chance of thunderstorms late
in the morning. Waves 2 feet or less.
.SUNDAY...North winds 10 to 15 knots decreasing to 5 to 10 knots.
Waves 2 feet or less.
.MONDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and early morning. Waves 2 feet or less.


$$

LHZ462>464-170400-
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-
340 PM EDT Wed Jul 16 2025

.TONIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots
early in the morning. A chance of showers and thunderstorms in
the evening...then showers likely and a chance of thunderstorms
after midnight. Waves 2 feet or less.
.THURSDAY...Southwest winds 10 to 15 knots veering to the
northwest late in the morning...then increasing to 15 to 20 knots
in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet in
the late morning and afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. Waves 4 to 6 feet.
Waves occasionally around 8 feet.
.FRIDAY...Northeast winds 5 to 10 knots until late afternoon
becoming light and variable. Waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon.
.FRIDAY NIGHT...North winds 5 to 10 knots veering to the
southeast after midnight. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots. A chance of showers. A
chance of thunderstorms late in the afternoon. Waves 2 feet or
less.
.SUNDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
.MONDAY...East winds 5 to 10 knots. Waves 2 feet or less.


$$

LHZ461-170400-
MAFOR 1621/
HURON NORTH 11300 11200 11206 12106 11810 12820. A chance of
thunderstorms tonight. Waves 2 feet or less tonight. Waves 1 to 3
feet building to 2 to 4 feet Thursday.

HURON SOUTH 12400 12406 11506 11710 12720. A chance of
thunderstorms tonight. Waves 2 feet or less tonight. Waves 2 feet
or less building to 2 to 4 feet...THEN building to 3 to 5 feet
Thursday.

$$

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)