Great Lakes Forecast
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FZUS63 KDTX 201939
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
339 PM EDT Sun Aug 20 2017

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, 30.20 inches, will expand across the
eastern seaboard today into Monday. Low pressure, 29.80 inches, is
forecast to develop over the Upper Midwest on Monday, then track
into the northern Great Lakes Monday night. This low is forecast to
deepen as it lifts into southern Quebec on Tuesday and will drag a
strong cold front across the Great Lakes region. Strong high
pressure will then build across the region from the west mid week.

LHZ361-210815-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
339 PM EDT Sun Aug 20 2017

.TONIGHT...South winds 5 to 10 knots veering to the southwest
early in the morning. A chance of showers and thunderstorms after
midnight. Waves 2 feet or less.
.MONDAY...Southwest winds 5 to 10 knots in the morning becoming
light and variable. A chance of showers and thunderstorms early
in the morning. Waves 2 feet or less.
.MONDAY NIGHT...Light and variable winds becoming southeast 5 to
10 knots after midnight. A chance of showers and thunderstorms in
the evening...then showers with thunderstorms likely after
midnight. Waves 2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots becoming northwest 10 to
15 knots in the late morning and afternoon. Showers with
thunderstorms likely until late afternoon. Waves 2 feet or less
building to 2 to 4 feet early in the afternoon.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots. Gusts to
30 knots in the late evening and early morning. Waves 4 to
6 feet. Waves occasionally around 8 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots decreasing to 5 to
10 knots. Waves 3 to 5 feet subsiding to 2 to 4 feet late in the
evening.
.THURSDAY...North winds 5 to 10 knots early in the morning
becoming light and variable...then becoming northwest 5 to
10 knots in the late evening and early morning. Waves 2 feet or
less.
.FRIDAY...Light and variable winds. Waves 2 feet or less.


$$

LHZ362-363-210815-
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-
339 PM EDT Sun Aug 20 2017

.TONIGHT...South winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Southwest winds 5 to 10 knots backing to the southeast
late in the afternoon. A chance of showers and thunderstorms in
the afternoon. Waves 1 to 3 feet.
.MONDAY NIGHT...Southeast winds 5 to 10 knots veering to the
south after midnight. A chance of showers and thunderstorms in
the evening...then showers and thunderstorms likely after
midnight. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 10 to 15 knots veering to the west
early in the afternoon. Showers with thunderstorms likely until
late afternoon...then a chance of showers and thunderstorms late
in the afternoon. Waves 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots with gusts to
30 knots increasing to 20 to 25 knots with gusts to 30 knots in
the late evening and early morning...then decreasing to 15 to
20 knots after midnight. A chance of showers and thunderstorms
early in the evening. Waves 5 to 7 feet. Waves occasionally
around 10 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the afternoon. Waves 4 to 6 feet. Waves
occasionally around 8 feet.
.THURSDAY...North winds 10 to 15 knots decreasing to 5 to
10 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY...West winds 5 to 10 knots early in the morning becoming
light and variable. Waves 2 feet or less.


$$

LHZ462>464-210815-
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-
339 PM EDT Sun Aug 20 2017

.TONIGHT...South winds 5 to 15 knots. Waves 1 to 3 feet.
.MONDAY...South winds 5 to 10 knots. A chance of showers and
thunderstorms in the afternoon. Waves 1 to 3 feet.
.MONDAY NIGHT...South winds 5 to 10 knots increasing to 10 to
15 knots after midnight. A chance of showers and thunderstorms in
the evening...then showers and thunderstorms likely after
midnight. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 10 to 15 knots. Showers and
thunderstorms likely. Waves 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. Showers and
thunderstorms likely early in the evening. Waves 3 to 5 feet
building to 4 to 6 feet after midnight. Waves occasionally around
8 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then decreasing to 5 to 10 knots
late in the afternoon becoming north 10 to 15 knots late in the
evening. Waves 3 to 5 feet.
.THURSDAY...North winds 5 to 10 knots becoming light and
variable. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY...Light and variable winds becoming northeast 5 to
10 knots until early morning. Waves 2 feet or less.


$$

LHZ461-210815-
MAFOR 2021/
HURON NORTH 12400 14500 11500 11400. A chance of showers and
thunderstorms overnight and Monday. Waves 1 to 3 feet. 220103.

HURON SOUTH 13400 11510 13500 11400. A chance of showers and
thunderstorms Monday afternoon. Waves 1 to 3 feet. 220102.

$$

SF

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)


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