278
FZUS63 KDTX 181946
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
346 PM EDT Fri Apr 18 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...Brief period of benign conditions expected through
early evening, with showers and thunderstorms filling in
overnight ahead of a slow-moving frontal zone. The surface low,
29.50 inches, draws the front south of the Ohio border by Saturday
morning resulting in benign marine conditions for the better part
of the weekend.

LHZ361-190400-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
346 PM EDT Fri Apr 18 2025

.TONIGHT...North winds 5 to 10 knots becoming northwest 10 to
15 knots after midnight. Showers likely and a chance of
thunderstorms in the evening...then a chance of showers after
midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and early morning...then building to 2 to 4 feet early in
the morning.
.SATURDAY...West winds 15 to 20 knots. Waves 4 to 6 feet. Waves
occasionally around 8 feet.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. Waves 3 to 5 feet subsiding to 1 to
3 feet after midnight.
.SUNDAY...Northwest winds 5 to 10 knots veering to the east in
the late morning and afternoon. Waves 2 feet or less.
.SUNDAY NIGHT...East winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. Rain likely after
midnight. Waves 1 to 3 feet building to 2 to 4 feet after
midnight.
.MONDAY...East winds 15 to 20 knots veering to the west late in
the evening. Rain...then a chance of rain late in the evening.
Waves 5 to 7 feet. Waves occasionally around 10 feet.
.TUESDAY...West winds 15 to 20 knots decreasing to 10 to 15 knots
early in the evening...then becoming west 10 to 15 knots in the
late evening and early morning. A chance of rain early in the
morning. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late
evening and early morning.
.WEDNESDAY...Southeast winds 5 to 10 knots. Waves 1 to 3 feet.


$$

LHZ362-363-190400-
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-
346 PM EDT Fri Apr 18 2025

.TONIGHT...South winds 5 to 10 knots becoming southwest 10 to
15 knots after midnight. A chance of showers and thunderstorms in
the evening...then showers likely and a chance of thunderstorms
after midnight. Waves 3 to 5 feet.
.SATURDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots in the late morning and afternoon. A chance of showers
in the morning. Waves 5 to 7 feet. Waves occasionally around
10 feet.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots. Waves 4 to
6 feet. Waves occasionally around 8 feet.
.SUNDAY...Northeast winds 5 to 10 knots. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots becoming east 10 to
15 knots in the late evening and overnight. A chance of rain
after midnight. Waves 1 to 3 feet building to 2 to 4 feet after
midnight.
.MONDAY...East winds 15 to 20 knots veering to the southwest late
in the evening. A chance of rain in the morning...then rain late
in the morning. A chance of rain late in the afternoon. Waves
5 to 7 feet. Waves occasionally around 10 feet.
.TUESDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots until early morning. Waves 4 to 6 feet subsiding to 1 to
3 feet in the late evening and early morning. Waves occasionally
around 8 feet.
.WEDNESDAY...East winds 5 to 10 knots veering to the southeast in
the late morning and early afternoon...then increasing to 10 to
15 knots early in the evening decreasing to 5 to 10 knots in the
late evening and early morning. Waves 1 to 3 feet.


$$

LHZ462>464-190400-
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-
346 PM EDT Fri Apr 18 2025

.TONIGHT...South winds 10 to 15 knots becoming southwest 15 to
20 knots early in the morning. A chance of showers and
thunderstorms. Waves 3 to 5 feet.
.SATURDAY...Southwest winds 10 to 15 knots veering to the west
late in the morning...then becoming northwest 5 to 10 knots in
the afternoon. A chance of showers in the morning. Waves 2 to
4 feet subsiding to 1 to 3 feet in the afternoon.
.SATURDAY NIGHT...North winds 5 to 10 knots increasing to 10 to
15 knots after midnight. Waves 2 to 4 feet.
.SUNDAY...North winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. Waves 2 to 4 feet subsiding to
1 to 3 feet in the late morning and afternoon.
.SUNDAY NIGHT...North winds 5 to 10 knots becoming east 10 to
15 knots in the late evening and overnight. A chance of rain
after midnight. Waves 1 to 3 feet building to 2 to 4 feet after
midnight.
.MONDAY...Southeast winds 15 to 20 knots veering to the southwest
late in the afternoon. Rain. A chance of rain late in the
afternoon. Waves 4 to 6 feet.
.TUESDAY...West winds 15 to 20 knots decreasing to 10 to 15 knots
until early evening...then becoming north 5 to 10 knots in the
late evening and early morning. Waves 3 to 5 feet subsiding to
1 to 3 feet in the late evening and early morning. Waves
occasionally around 8 feet.
.WEDNESDAY...East winds 5 to 10 knots becoming southeast 10 to
15 knots until early evening...then decreasing to 5 to 10 knots
in the late evening and early morning. Waves 1 to 3 feet.


$$

LHZ461-190400-
MAFOR 1821/
HURON NORTH 11400 11406 11506 11626 11620 13630. A chance of
thunderstorms this evening. Waves 2 to 4 feet tonight. Waves 4 to
6 feet. Occasional wave height around 8 feet Saturday.

HURON SOUTH 12400 11416 11510 11616 11710 11610 11700. A
chance of thunderstorms tonight. Waves 2 to 4 feet.

$$

MV

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)