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Georgian Bay/Simcoe

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fzus63 kdtx 221345
glflh 
362 

open lake forecast for lake huron
national weather service detroit/pontiac mi
945 am edt tue aug 22 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...low pressure near the straits during the morning at 
29.50 inches will move toward james bay and deepen to 29.20 inches 
by this evening. the strong cold front associated with this system 
will move through northern lake huron by late morning and then reach 
western lake erie toward evening. northwest gales are likely by late 
afternoon through tonight over the north half of lake huron, 
diminishing but remaining moderate through wednesday. high pressure 
averaging 30.20 inches will then build into the region thursday 
through friday.

lhz361-362-222015-
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-
945 am edt tue aug 22 2017

...gale warning in effect from 5 pm edt this afternoon through
late tonight...

.rest of today...southwest winds 15 to 20 knots becoming west
20 to 25 knots with gusts to 30 knots early in the afternoon...
then veering to the northwest with gusts to 35 knot gales late in
the afternoon. numerous showers and a chance of thunderstorms 
late in the morning. waves 4 to 6 feet. waves occasionally around 
8 feet.
.tonight...west winds 20 to 25 knots decreasing to 15 to 20 knots
early in the morning. gusts to 35 knot gales. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday night...northwest winds 15 to 20 knots with gusts to
30 knots decreasing to 10 to 15 knots after midnight. waves 4 to
6 feet. waves occasionally around 8 feet. 
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...north winds 5 to 10 knots early in the morning becoming
light and variable...then becoming west 5 to 10 knots in the late
evening and early morning. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots until afternoon
becoming light and variable. waves 2 feet or less. 


$$
fzus63 kdtx 221345
glflh 

lhz363-462-222015-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
945 am edt tue aug 22 2017

.rest of today...southwest winds 20 to 25 knots with gusts to
30 knots becoming west 15 to 20 knots late in the afternoon.
periods of showers late in the morning. a chance of thunderstorms
in the late morning and early afternoon. scattered showers early
in the afternoon. waves 4 to 6 feet. waves occasionally around
8 feet. 
.tonight...west winds 15 to 20 knots. gusts to 30 knots until
early morning. waves 5 to 7 feet. waves occasionally around
10 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots early in the afternoon. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.wednesday night...northwest winds 10 to 15 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon. 
.friday...north winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 


$$
fzus63 kdtx 220745
glflh 

lhz363-222015-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
345 am edt tue aug 22 2017

.today...southwest winds 15 to 20 knots increasing to 20 to
25 knots late in the morning...then becoming west 15 to 20 knots
in the afternoon. showers with thunderstorms likely until late
afternoon. waves 3 to 5 feet. 
.tonight...northwest winds 15 to 20 knots with gusts to 30 knots
increasing to 20 to 25 knots with gusts to 30 knots late in the
evening...then becoming west 15 to 20 knots with gusts to
30 knots after midnight. waves 5 to 7 feet. waves occasionally
around 10 feet. 
.wednesday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.wednesday night...northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and early morning...then
decreasing to 10 to 15 knots after midnight. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...north winds 5 to 10 knots early in the morning becoming
light and variable. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 


$$
fzus63 kdtx 220745
glflh 

lhz362-222015-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
345 am edt tue aug 22 2017

...gale warning in effect from this afternoon through late
tonight...

.today...southwest winds 15 to 20 knots becoming west 20 to
25 knots with gusts to 30 knots in the afternoon. showers with
thunderstorms likely until late afternoon. waves 3 to 5 feet
building to 4 to 6 feet late in the afternoon. waves occasionally
around 8 feet. 
.tonight...west winds 20 to 25 knots with gusts to 35 knot gales.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday night...northwest winds 15 to 20 knots with gusts to
30 knots decreasing to 10 to 15 knots after midnight. waves 4 to
6 feet. waves occasionally around 8 feet. 
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...north winds 5 to 10 knots early in the morning becoming
light and variable...then becoming west 5 to 10 knots in the late
evening and early morning. waves 2 feet or less. 
.saturday...northwest winds 5 to 10 knots until afternoon
becoming light and variable. waves 2 feet or less. 


$$
fzus63 kdtx 220745
glflh 

lhz462>464-222015-
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-
345 am edt tue aug 22 2017

.today...southwest winds 15 to 20 knots. showers with
thunderstorms likely. waves 2 to 4 feet. 
.tonight...west winds 15 to 20 knots. gusts to 30 knots late in
the evening. showers and thunderstorms likely early in the
evening. waves 2 to 4 feet building to 5 to 7 feet in the late
evening and overnight. waves occasionally around 10 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots early in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday night...northwest winds 10 to 15 knots. waves 3 to
5 feet. 
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the evening. a chance of showers early in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
afternoon. 
.friday...north winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 


$$

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