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033
FZUS63 KDTX 160137
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
937 PM EDT Tue Jul 15 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 into the Great Lakes Wednesday and Thursday
which brings showers and thunderstorms to the marine zones.
Strong to severe thunderstorms will be possible Wednesday
afternoon and evening. North-northwest winds behind this system
will increase on Thursday, ranging from 20-25 knots.

LHZ361-362-160945-
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-
937 PM EDT Tue Jul 15 2025

.REST OF TONIGHT...South winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. Waves 1 to 3 feet.
.WEDNESDAY...South winds 5 to 10 knots backing to the east late
in the afternoon. A chance of showers and thunderstorms in the
afternoon. Some thunderstorms may produce heavy rainfall in the
afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Showers likely
and a chance of thunderstorms. Some thunderstorms may produce
heavy rainfall in the evening. Waves 2 feet or less.
.THURSDAY...North winds 10 to 15 knots backing to the northwest
in the late morning and afternoon. A chance of showers. Waves
1 to 3 feet building to 3 to 5 feet early in the afternoon.
.THURSDAY NIGHT...North winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight.
.FRIDAY...North winds 5 to 10 knots in the morning becoming light
and variable...then becoming southeast 5 to 10 knots late in the
evening. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots backing to the east until
early morning. A chance of showers early in the evening. Waves
2 feet or less.
.SUNDAY...Northeast winds 5 to 10 knots. Waves 2 feet or less.

$$

LHZ363-160945-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
937 PM EDT Tue Jul 15 2025

.REST OF TONIGHT...South winds 10 to 15 knots. Waves 1 to 3 feet.
.WEDNESDAY...South winds 5 to 10 knots backing to the southeast
late in the afternoon. A chance of showers in the afternoon.
Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots backing to the
east in the late evening and early morning...then veering to the
south after midnight. A chance of showers and thunderstorms. Some
thunderstorms may produce heavy rainfall in the evening. Waves
2 feet or less.
.THURSDAY...Southwest winds 10 to 15 knots veering to the
northwest in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the afternoon. A chance of
showers. Waves 1 to 3 feet building to 3 to 5 feet early in the
afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. Waves 2 to 4 feet.
.FRIDAY...Northeast winds 5 to 10 knots. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots. A chance of showers until
early morning. Waves 2 feet or less.
.SUNDAY...North winds 5 to 10 knots. A chance of showers early in
the morning. Waves 2 feet or less.

$$

LHZ462>464-160945-
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-
937 PM EDT Tue Jul 15 2025

.REST OF TONIGHT...South winds 5 to 10 knots. Waves 2 feet or
less.
.WEDNESDAY...South winds 5 to 10 knots. A chance of showers and
thunderstorms in the afternoon. Some thunderstorms may produce
heavy rainfall in the afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. A chance of showers
and thunderstorms. Some thunderstorms may produce heavy rainfall
in the evening. Waves 2 feet or less.
.THURSDAY...South winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and early afternoon...then veering
to the northwest early in the afternoon. A chance of showers.
Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. Waves 2 to 4 feet.
.FRIDAY...Northeast winds 10 to 15 knots decreasing to 5 to
10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SATURDAY...Southeast winds 5 to 10 knots. A chance of showers
until early morning. Waves 2 feet or less.
.SUNDAY...Northeast winds 5 to 10 knots backing to the north
until early morning. A chance of showers early in the morning.
Waves 2 feet or less.

$$

LHZ461-160945-
MAFOR 1603/
HURON NORTH 12400 12500 11400 12300 11206. A chance of
thunderstorms Wednesday afternoon and Wednesday evening. Waves 2
feet or less.

HURON SOUTH 14400 11400 11300 12400. A chance of showers and
thunderstorms Wednesday evening. Waves 2 feet or less.

$$

JA

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)