Great Lakes Forecast
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FZUS63 KDTX 150743
GLFLH

Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
343 AM EDT Sun Apr 15 2018

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...Low pressure averaging 29.70 inches centered just
south of Lake Michigan will drift east to Lake Erie by this
evening. Meanwhile a strong high pressure system averaging 30.80
inches over James Bay will drift east into northern Quebec by
tonight allowing part of the shearing low to lift over the central
Great Lakes as a 29.50 inch low Monday. A weak ridge of high
pressure will then slide through the region Tuesday night.

LHZ361-362-152015-
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-
343 AM EDT Sun Apr 15 2018

...STORM WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...East at 40 knot gales. Storm force gusts to 50 knots this
afternoon. A chance of freezing rain in the morning. Snow showers
and sleet. Freezing rain in the afternoon. Precipitation may be
heavy at times in the morning. Waves 15 to 20 feet. Waves
occasionally around 25 feet.
.TONIGHT...East winds to 30 knots with gusts to 45 knot gales
decreasing to 20 to 25 knots with gusts to 30 knots early in the
morning. Sleet until early morning. Showers and snow showers.
Waves 15 to 20 feet subsiding to 10 to 14 feet after midnight.
Waves occasionally around 25 feet.
.MONDAY...East winds 15 to 20 knots becoming northeast 10 to
15 knots in the late morning and afternoon. Rain and snow
showers. Waves 8 to 12 feet subsiding to 4 to 6 feet early in the
afternoon. Waves occasionally around 15 feet.
.MONDAY NIGHT...West winds 10 to 15 knots becoming northwest
15 to 20 knots with gusts to 30 knots in the late evening and
overnight. Showers likely until early morning. Snow showers
likely. Waves 3 to 5 feet building to 5 to 7 feet after midnight.
Waves occasionally around 10 feet.
.TUESDAY...Northwest winds 15 to 20 knots with gusts to 30 knots
decreasing to 10 to 15 knots late in the evening. Snow showers
likely early in the morning. A chance of snow showers early in
the morning. A chance of showers late in the morning. Waves 5 to
7 feet. Waves occasionally around 10 feet.
.WEDNESDAY...Northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming northeast 10 to
15 knots in the late evening and early morning. A chance of
showers until early morning. A chance of snow showers in the late
evening and early morning. Waves 2 to 4 feet subsiding to 1 to
3 feet until early evening...then building to 3 to 5 feet in the
late evening and early morning.
.THURSDAY...North winds 15 to 20 knots. A chance of snow showers
early in the morning. A chance of showers until late afternoon.
Waves 5 to 7 feet. Waves occasionally around 10 feet.


$$

LHZ363-462-152015-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off
shore-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
343 AM EDT Sun Apr 15 2018

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...East at 35 knot gales with gusts to 45 knot gales
becoming northeast to 30 knots with gusts to 35 knot gales late
in the afternoon. A chance of sleet and snow showers in the
morning. Freezing rain. Showers in the afternoon. Waves 14 to
18 feet. Waves occasionally around 23 feet.
.TONIGHT...Northeast winds 10 to 15 knots with gusts to 35 knot
gales increasing to 15 to 20 knots in the late evening and
overnight. Sleet early in the evening. Showers. Waves 12 to
16 feet subsiding to 8 to 12 feet after midnight. Waves
occasionally around 20 feet.
.MONDAY...East winds 10 to 15 knots veering to the southeast
early in the afternoon. Showers likely until late afternoon. Snow
showers likely early in the afternoon...then a chance of showers
late in the afternoon. Waves 6 to 9 feet subsiding to 3 to 5 feet
early in the afternoon. Waves occasionally around 12 feet.
.MONDAY NIGHT...West winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 30 knots in the late evening and
overnight. A chance of snow showers in the evening. A chance of
showers until early morning. Snow showers likely after midnight.
Waves 3 to 5 feet building to 5 to 7 feet after midnight. Waves
occasionally around 10 feet.
.TUESDAY...West winds 15 to 20 knots with gusts to 30 knots
becoming northwest 10 to 15 knots late in the afternoon. Snow
showers likely early in the morning...then a chance of snow
showers early in the morning. A chance of showers late in the
morning. Waves 5 to 7 feet. Waves occasionally around 10 feet.
.WEDNESDAY...Northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming northeast 5 to
10 knots early in the evening increasing to 10 to 15 knots. A
chance of showers in the afternoon and evening. Showers and snow
showers likely late in the evening...then a chance of rain and
snow showers after midnight. Waves 2 to 4 feet subsiding to 1 to
3 feet until early evening...then building to 3 to 5 feet in the
late evening and early morning.
.THURSDAY...Northeast winds 15 to 20 knots becoming north 20 to
25 knots in the late morning and early afternoon...then becoming
northwest 15 to 20 knots until early morning. A chance of snow
showers until afternoon. A chance of showers. A chance of snow
showers in the late evening and early morning. Waves 6 to 9 feet.
Waves occasionally around 12 feet.


$$

LHZ463-464-152015-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
343 AM EDT Sun Apr 15 2018

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...East winds 20 to 25 knots with gusts to 30 knots
decreasing to 15 to 20 knots late in the morning...then
increasing to 30 knots with gusts to 35 knot gales late in the
afternoon. A chance of sleet early in the morning. Freezing rain.
Showers in the afternoon. Waves 8 to 12 feet building to 10 to 14
feet late in the afternoon. Waves occasionally around 18 feet.
.TONIGHT...Southeast winds 10 to 15 knots with gusts to 40 knot
gales becoming east 15 to 20 knots late in the evening...then
decreasing to 5 to 10 knots after midnight. Showers. Waves 10 to
14 feet subsiding to 4 to 6 feet in the late evening and
overnight. Waves occasionally around 18 feet.
.MONDAY...East winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. A chance of showers.
A chance of snow showers early in the afternoon. Waves 1 to
3 feet.
.MONDAY NIGHT...West winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 30 knots in the late evening and
overnight. A chance of rain and snow showers in the evening...
then snow showers likely after midnight. Waves 2 to 4 feet
building to 4 to 6 feet in the late evening and overnight. Waves
occasionally around 8 feet.
.TUESDAY...West winds 15 to 20 knots with gusts to 30 knots
decreasing to 10 to 15 knots late in the afternoon. Snow showers
likely early in the morning...then a chance of snow showers early
in the morning. A chance of showers late in the morning. Waves
3 to 5 feet.
.WEDNESDAY...West winds 5 to 10 knots early in the morning
becoming light and variable...then becoming northeast 5 to
10 knots early in the evening increasing to 10 to 15 knots. A
chance of showers in the afternoon. Showers likely until early
morning. Snow showers likely in the late evening and early
morning. Waves 1 to 3 feet.
.THURSDAY...North winds 15 to 20 knots. Showers likely until
afternoon. A chance of snow showers. A chance of showers until
early morning. Waves 5 to 7 feet building to 6 to 9 feet until
early morning. Waves occasionally around 12 feet.


$$

&&STORM

LHZ461-152015-
MAFOR 1509/
HURON NORTH...Storm Warning in effect...12257 12250 19270
12250 11256 11246. A chance of freezing rain this morning.
Waves 10 to 14 feet building to 12 to 16 feet. Occasional wave
height around 20 feet today. Waves 14 to 18 feet subsiding to 8
to 12 feet. Occasional wave height around 23 feet tonight.
221014.

HURON SOUTH...Gale Warning in effect...13250 11256 11356
13226. A chance of sleet this morning. Waves 10 to 14 feet.
Occasional wave height around 18 feet today. Waves 10 to 14 feet
subsiding to 4 to 6 feet. Occasional wave height around 18 feet
tonight. 221013.

$$

SC

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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