Great Lakes Forecast
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453
FZUS63 KDTX 120748 AAA
GLFLH

Open Lake Forecast for Lake Huron...UPDATED
National Weather Service Detroit/Pontiac MI
348 AM EDT Mon May 12 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 of 30.40 inches slowly exits the
Eastern Great Lakes this morning, allowing an extended period of
light southeast winds through Wednesday. A large low pressure
system lifting into the region will bring periods of showers and
isolated thunderstorms Tuesday and Wednesday.

LHZ361-362-121600-
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-
348 AM EDT Mon May 12 2025

.TODAY...South winds 5 to 10 knots backing to the east late in
the afternoon. Waves 1 to 3 feet.
.TONIGHT...East winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots backing to the east
early in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Waves 1 to 3 feet.
.WEDNESDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.THURSDAY...East winds 5 to 10 knots increasing to 10 to
15 knots. A chance of 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 2 to 4 feet
until early morning.
.FRIDAY...South winds 10 to 15 knots. A chance of showers. Waves
3 to 5 feet.


$$

LHZ363-462>464-121600-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
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-
348 AM EDT Mon May 12 2025

.TODAY...Southeast winds 5 to 10 knots backing to the east late
in the afternoon. Waves 2 feet or less.
.TONIGHT...East winds 5 to 10 knots veering to the southeast
early in the morning. Waves 2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots. A chance of showers in
the morning. Waves 2 feet or less.
.TUESDAY NIGHT...East winds 5 to 10 knots becoming southeast
10 to 15 knots in the late evening and overnight. Waves 1 to
3 feet.
.WEDNESDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.THURSDAY...Southeast winds 5 to 10 knots increasing to 15 to
20 knots. A chance of 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 2 to 4 feet
until early morning.
.FRIDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots in the late evening and early morning. Showers likely
early in the morning...then a chance of showers. Waves 3 to
5 feet.


$$

LHZ461-121600-
MAFOR 1209/
HURON NORTH 13400 14300 11300. Waves 2 feet or less.

HURON SOUTH 12400 15300. Waves 2 feet or less.

$$

AA

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)