Great Lakes Forecast
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FZUS63 KDTX 260154
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
953 PM EDT Sun Jun 25 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...A surface trough...averaging 29.90 inches...will linger
over Lake Huron tonight through Monday as a broad region of
stationary low pressure near Labrador slowly weakens. High pressure
will then expand into the area Tuesday and Wednesday bringing
quiet weather conditions.

LHZ361-260800-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
953 PM EDT Sun Jun 25 2017

.REST OF TONIGHT...Southwest winds 5 to 10 knots in the late
evening and early morning becoming light and variable. A chance
of showers. Waves 2 feet or less.
.MONDAY...Light and variable winds becoming east 5 to 10 knots in
the late morning and afternoon. Showers likely. Waves 2 feet or
less.
.MONDAY NIGHT...Northeast winds 5 to 10 knots becoming northwest
10 to 15 knots in the late evening and overnight. Showers likely
early in the evening...then a chance of showers in the late
evening and early morning. Waves 1 to 3 feet.

Corridor of isentropic ascent will pivot through the area during
peak heating. Most focused ascent will reside PTK north where
mention of -shra remains in the forecast. Given drier low-levels and
low rain intensity, expect nothing worse than brief MVFR with any
showers. Further south, VFR cu dominate. Low potential for showers
to move into the Detroit area given weaker forcing and downsloping
contributing to more dry air in the lowest levels. A passing shower
is possible but confidence is too low to warrant carrying in the TAF.

For DTW...Brief cigs aob 5kft will be possible but downsloping
within westerly flow makes the forecast difficult given borderline
upstream obs. For now will carry a BKN060 pending evidence for
maintence of sustained 050 or lower.

.TUESDAY...Northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots early in the afternoon. Waves 1 to
3 feet.
.TUESDAY NIGHT...West winds 10 to 15 knots becoming southwest
5 to 10 knots in the late evening and early morning...then
increasing to 10 to 15 knots after midnight. Waves 2 feet or
less.
.WEDNESDAY...Southwest winds 5 to 10 knots backing to the south
late in the afternoon...then becoming southeast 10 to 15 knots
late in the evening. A chance of showers early in the afternoon.
Rain showers early in the evening. A chance of thunderstorms
after midnight. Waves 2 feet or less building to 2 to 4 feet late
in the evening.
.THURSDAY...East winds 10 to 15 knots decreasing to 5 to 10 knots
until early evening...then backing to the east 5 to 10 knots in
the late evening and early morning. Showers early in the morning.
A chance of thunderstorms. A chance of showers until early
morning. Waves 2 to 4 feet subsiding to 1 to 3 feet until early
morning.
.FRIDAY...Northeast winds 5 to 10 knots. A chance of showers and
thunderstorms until early morning. Waves 2 feet or less.


$$

LHZ362-363-260800-
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-
953 PM EDT Sun Jun 25 2017

.REST OF TONIGHT...Light and variable winds. A chance of showers.
Waves 2 feet or less.
.MONDAY...Light and variable winds becoming east 5 to 10 knots in
the late morning and early afternoon...then becoming light and
variable late in the afternoon. Showers likely. Waves 1 to
3 feet.
.MONDAY NIGHT...North winds 5 to 10 knots becoming northwest
10 to 15 knots in the late evening and overnight. Showers likely
early in the evening...then a chance of showers in the late
evening and overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet
in the late evening and overnight.
.TUESDAY...Northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then backing
to the southwest early in the afternoon. A chance of showers
early in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet
in the late morning and afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots increasing to
10 to 15 knots after midnight. Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots backing to the south
late in the afternoon. A chance of showers early in the
afternoon. Rain showers early in the evening. Waves 1 to 3 feet
building to 2 to 4 feet late in the evening.
.THURSDAY...Southeast winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then veering
to the southwest early in the evening veering to the southwest
10 to 15 knots in the late evening and early morning. Showers
early in the morning. A chance of showers until early evening. A
chance of thunderstorms in the afternoon. Waves 3 to 5 feet
subsiding to 1 to 3 feet in the late evening and early morning.
.FRIDAY...North winds 5 to 10 knots becoming east 10 to 15 knots
in the late evening and early morning. A chance of showers and
thunderstorms until early morning. Waves 1 to 3 feet.


$$

LHZ462>464-260800-
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-
953 PM EDT Sun Jun 25 2017

.REST OF TONIGHT...West winds 5 to 10 knots. A chance of showers.
Waves 1 to 3 feet.
.MONDAY...West winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. A chance of showers
early in the morning. Rain showers likely in the late morning and
afternoon. Waves 1 to 3 feet.
.MONDAY NIGHT...West winds 10 to 15 knots. Showers likely early
in the evening...then a chance of showers in the late evening and
overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and overnight.
.TUESDAY...West winds 10 to 15 knots decreasing to 5 to 10 knots
early in the afternoon. A chance of showers early in the morning.
Waves 2 to 4 feet subsiding to 1 to 3 feet early in the
afternoon.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots increasing to
10 to 15 knots in the late evening and overnight. Waves 1 to
3 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots backing to the south
late in the evening. Showers likely early in the evening. Waves
1 to 3 feet.
.THURSDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers likely early in the morning. A chance of
showers until early 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.
.FRIDAY...West winds 10 to 15 knots becoming north 5 to 10 knots
until early evening...then becoming east 10 to 15 knots in the
late evening and early morning. A chance of showers until
afternoon. A chance of thunderstorms. Rain showers likely until
early morning. Waves 1 to 3 feet.


$$

LHZ461-260800-
MAFOR 2603/
HURON NORTH 11600 11400 14300 11100 11700. A chance of
showers. Waves 2 feet or less. 220002.

HURON SOUTH 12100 11300 11506 12616 11626 11610. A chance of
showers overnight. Waves 2 feet or less overnight. Waves 2 feet
or less building to 1 to 3 feet Monday and Monday evening.
220002.

$$

CB

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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