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fzus63 kdtx 260119
glflh 
expires:202110260830;;776747

open lake forecast for lake huron
national weather service detroit/pontiac mi
919 pm edt mon oct 25 2021

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...northerly winds will slowly diminish tonight and
tomorrow, as a ridge of high pressure...30.00 inches...arrives on
wednesday. light winds will then become easterly and increase in
the thursday-friday time frame as strong low pressure tracks
close to the ohio river.


lhz361-260830-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
919 pm edt mon oct 25 2021

.rest of tonight...northeast winds around 20 knots with gusts to
25 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday...north winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. waves 3 to 5 feet. 
.tuesday night...northeast winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.wednesday...east winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots after midnight. waves 1 to 3 feet. 
.thursday...southeast winds 10 to 15 knots becoming east 15 to
20 knots late in the afternoon...then decreasing to 10 to
15 knots late in the evening. a chance of showers late in the
evening. waves 3 to 5 feet. 
.friday...northeast winds 10 to 15 knots. a chance of showers.
waves 3 to 5 feet. 
.saturday...north winds 10 to 15 knots decreasing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet until early
morning. 


$$
fzus63 kdtx 260119
glflh 
expires:202110260830;;776748

open lake forecast for lake huron
national weather service detroit/pontiac mi
919 pm edt mon oct 25 2021

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...northerly winds will slowly diminish tonight and
tomorrow, as a ridge of high pressure...30.00 inches...arrives on
wednesday. light winds will then become easterly and increase in
the thursday-friday time frame as strong low pressure tracks
close to the ohio river.


lhz362-363-462>464-260830-
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-
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-
919 pm edt mon oct 25 2021

...gale warning in effect until 4 am edt tuesday...

.rest of tonight...northeast winds 20 to 30 knots with gusts to 
35 knot gales. numerous showers this evening...then scattered 
showers after midnight. waves 10 to 14 feet. waves occasionally 
around 18 feet. 
.tuesday...north winds 20 to 25 knots with gusts to around
30 knots. a chance of showers. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.tuesday night...north winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 6 to 9 feet
subsiding to 3 to 5 feet after midnight. waves occasionally
around 12 feet. 
.wednesday...northeast winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.wednesday night...northeast winds 5 to 10 knots becoming east
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet. 
.thursday...east winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. a chance of showers late in the
evening. waves 3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming northeast 10 to
15 knots in the late evening and early morning. a chance of
showers. waves 3 to 5 feet. 
.saturday...north winds 10 to 15 knots. a chance of showers.
waves 2 to 4 feet. 


$$
fzus63 kdtx 251930
glflh 
expires:202110260815;;762292

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt mon oct 25 2021

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, 29.60 inches, over ohio this afternoon
will give way a deepening low off the mid atlantic coast tonight.
frequent north- northeast wind gust to gales over southern lake
huron this evening will slowly decrease tonight and tuesday, with
winds becoming light by wednesday as a ridge of high
pressure...30.00 inches...arrives.


lhz462>464-260815-
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-
330 pm edt mon oct 25 2021

...gale warning in effect through late tonight...

.tonight...northeast winds to 30 knots with gusts to 40 knot
gales. showers. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tuesday...north winds to 30 knots decreasing to 20 to 25 knots
in the afternoon. showers likely in the morning. a chance of 
showers in the afternoon. waves 10 to 14 feet. waves occasionally 
around 18 feet. 
.tuesday night...north winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 6 to 9 feet
subsiding to 3 to 5 feet after midnight. waves occasionally
around 12 feet. 
.wednesday...northeast winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.wednesday night...east winds 5 to 10 knots becoming southeast
10 to 15 knots after midnight. waves 1 to 3 feet. 
.thursday...east winds 10 to 15 knots increasing to 15 to
20 knots late in the evening. a chance of showers late in the
evening. waves 2 to 4 feet. 
.friday...east winds 15 to 20 knots decreasing to 10 to 15 knots
in the late morning and early afternoon...then becoming northeast
15 to 20 knots early in the evening decreasing to 10 to 15 knots
in the late evening and early morning. showers likely...then a
chance of showers in the late evening and early morning. waves
3 to 5 feet. 
.saturday...north winds 10 to 15 knots. a chance of showers.
waves 2 to 4 feet. 


$$
fzus63 kdtx 251930
glflh 
expires:202110260815;;762291

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt mon oct 25 2021

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, 29.60 inches, over ohio this afternoon
will give way a deepening low off the mid atlantic coast tonight.
frequent north- northeast wind gust to gales over southern lake
huron this evening will slowly decrease tonight and tuesday, with
winds becoming light by wednesday as a ridge of high
pressure...30.00 inches...arrives.


lhz362-363-260815-
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-
330 pm edt mon oct 25 2021

...gale warning in effect through late tonight...

.tonight...northeast winds to 30 knots with gusts to 35 knot
gales. showers likely in the evening...then a chance of showers
after midnight. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tuesday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the afternoon. a
chance of showers. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tuesday night...north winds 15 to 20 knots becoming northeast
10 to 15 knots in the late evening and overnight. waves 5 to
7 feet. waves occasionally around 10 feet. 
.wednesday...northeast winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.wednesday night...northeast winds 5 to 10 knots becoming east
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet. 
.thursday...southeast winds 10 to 15 knots becoming east 15 to
20 knots late in the afternoon. a chance of showers late in the
evening. waves 3 to 5 feet. 
.friday...east winds 15 to 20 knots becoming northeast 10 to
15 knots in the late evening and early morning. a chance of
showers. waves 3 to 5 feet. 
.saturday...north winds 10 to 15 knots. a chance of showers.
waves 2 to 4 feet. 


$$
fzus63 kmkx 260200
glflm 
expires:202110260915;;777907

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 pm cdt mon oct 25 2021

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis... 

low pressure around 29.7 inches over the mid atlantic states  
will continue to push east tonight. the northerly gales have 
ended over southern lake michigan but north winds of 25 to 30 
knots will continue this evening along with very high waves. the 
winds will continue to weaken late tonight into tuesday morning as
high pressure of 30.2 inches approaches from the west. the high
will then move across lake michigan tuesday night. the lighter 
northerly winds will veer to southeasterly by wednesday ahead of 
an approaching low pressure system.


lmz261-362-364-366-563-565-567-868-260915-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
900 pm cdt mon oct 25 2021

sheboygan wi to pentwater mi north...

.rest of tonight...northeast winds 15 to 25 kt. isolated rain 
showers overnight. waves 5 to 8 ft occasionally to 10 ft.
.tuesday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.tuesday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt late in the evening, then becoming east after midnight
diminishing to 5 to 10 kt late. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.wednesday...southeast winds 10 to 15 kt. waves 1 to 3 ft. 
.wednesday night...southeast winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday...southeast winds 10 to 20 kt becoming east. chance of
showers in the afternoon. waves 3 to 5 ft. 
.thursday night...east winds 10 to 20 kt becoming northeast.
chance of showers. waves 2 to 4 ft. 
.friday...northeast winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 4 to 6 ft occasionally to 8 ft building to 5 to
8 ft occasionally to 10 ft. 
.saturday...north winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft subsiding to 2 to 4 ft.  

$$
fzus63 kmkx 260200
glflm 
expires:202110260915;;777908

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 pm cdt mon oct 25 2021

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis... 

low pressure around 29.7 inches over the mid atlantic states  
will continue to push east tonight. the northerly gales have 
ended over southern lake michigan but north winds of 25 to 30 
knots will continue this evening along with very high waves. the 
winds will continue to weaken late tonight into tuesday morning as
high pressure of 30.2 inches approaches from the west. the high
will then move across lake michigan tuesday night. the lighter 
northerly winds will veer to southeasterly by wednesday ahead of 
an approaching low pressure system.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260915-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
900 pm cdt mon oct 25 2021

sheboygan wi to pentwater mi south...

.rest of tonight...northeast winds 25 to 30 kt. isolated rain
showers. waves 7 to 11 ft occasionally to 14 ft subsiding to 5 to
8 ft occasionally to 11 ft. 
.tuesday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
slight chance of rain showers in the morning. waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.tuesday night...north winds 10 to 20 kt veering to east 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...southeast winds 10 to 15 kt. waves 1 to 3 ft. 
.wednesday night...southeast winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday...southeast winds 10 to 20 kt becoming east. chance of
showers. waves 3 to 5 ft. 
.thursday night...east winds 15 to 25 kt becoming northeast.
showers. waves 3 to 5 ft. 
.friday...northeast winds to 30 kt becoming north. chance of
showers. waves 6 to 9 ft occasionally to 12 ft. 
.saturday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft.  

$$
fzus63 kmqt 260211
glfls 
expires:202110261015;;778789

open lake forecast for lake superior
national weather service marquette mi
1011 pm edt mon oct 25 2021

for waters beyond 5 nautical miles of shore on lake superior.

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 30.4 inch high pressure will remain anchored over 
northern ontario tonight while a broad 29.7 inch low pressure 
moves across the mid- atlantic states into the atlantic 
overnight. the high will shift east to james bay tuesday, enabling
a 30.2 inch ridge across the upper great lakes. the ridge will 
weaken to 29.9 inches wednesday. a 29.3 inch low pressure moves 
into the mid- mississippi valley thursday, enabling troughing to 
average 29.9 inches over the upper great lakes. friday, the low 
reaches the ohio valley at 29.4 inches as 29.9 inch troughing 
lingers over the upper great lakes. weak ridging at 29.9 inches 
replaces the troughing on saturday. 

&&


lsz267-261015-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1011 pm edt mon oct 25 2021

.rest of tonight...northeast winds 15 to 25 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.tuesday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 10 to 20 knots. waves building
to 1 to 3 feet. 
.thursday...southeast winds 10 to 20 knots. waves 1 to 3 feet. 
.thursday night...southeast winds 10 to 20 knots backing east
after midnight. a chance of showers. waves subsiding to calm to
2 feet. 
.friday...north winds 10 to 20 knots. waves building to 1 to
3 feet. 
.saturday...northeast winds 10 to 20 knots backing west. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 

$$
fzus63 kmqt 260211
glfls 
expires:202110261015;;778784

open lake forecast for lake superior
national weather service marquette mi
1011 pm edt mon oct 25 2021

for waters beyond 5 nautical miles of shore on lake superior.

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 30.4 inch high pressure will remain anchored over 
northern ontario tonight while a broad 29.7 inch low pressure 
moves across the mid- atlantic states into the atlantic 
overnight. the high will shift east to james bay tuesday, enabling
a 30.2 inch ridge across the upper great lakes. the ridge will 
weaken to 29.9 inches wednesday. a 29.3 inch low pressure moves 
into the mid- mississippi valley thursday, enabling troughing to 
average 29.9 inches over the upper great lakes. friday, the low 
reaches the ohio valley at 29.4 inches as 29.9 inch troughing 
lingers over the upper great lakes. weak ridging at 29.9 inches 
replaces the troughing on saturday. 

&&


lsz162-261015-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1011 pm edt mon oct 25 2021 /911 pm cdt mon oct 25 2021/

.rest of tonight...east winds 10 to 20 knots. a slight chance of
rain showers. waves 3 to 5 feet occasionally to 7 feet subsiding
to 1 to 3 feet. 
.tuesday...east winds 10 to 20 knots. waves building to 2 to
4 feet. 
.tuesday night...east winds 15 to 25 knots veering southeast
after midnight, then diminishing to 10 to 20 knots late. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
1 to 3 feet. 
.wednesday...southeast winds 10 to 20 knots. a chance of showers.
waves 1 to 3 feet. 
.wednesday night...southeast winds 10 to 20 knots veering south
after midnight. a chance of showers. waves 1 to 3 feet. 
.thursday...south winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. a chance of showers. waves subsiding
to calm to 2 feet. 
.thursday night...north winds 10 to 20 knots. a chance of
showers. waves calm to 2 feet. 
.friday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.saturday...southwest winds 5 to 15 knots becoming northwest
10 to 20 knots. waves building to 2 to 4 feet. 

$$
fzus63 kmqt 260211
glfls 
expires:202110261015;;778785

open lake forecast for lake superior
national weather service marquette mi
1011 pm edt mon oct 25 2021

for waters beyond 5 nautical miles of shore on lake superior.

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 30.4 inch high pressure will remain anchored over 
northern ontario tonight while a broad 29.7 inch low pressure 
moves across the mid- atlantic states into the atlantic 
overnight. the high will shift east to james bay tuesday, enabling
a 30.2 inch ridge across the upper great lakes. the ridge will 
weaken to 29.9 inches wednesday. a 29.3 inch low pressure moves 
into the mid- mississippi valley thursday, enabling troughing to 
average 29.9 inches over the upper great lakes. friday, the low 
reaches the ohio valley at 29.4 inches as 29.9 inch troughing 
lingers over the upper great lakes. weak ridging at 29.9 inches 
replaces the troughing on saturday. 

&&


lsz263-261015-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1011 pm edt mon oct 25 2021

.rest of tonight...east winds 10 to 20 knots diminishing to 5 to
15 knots late. a slight chance of rain showers after midnight.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...east winds 10 to 20 knots. waves 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots veering southeast
after midnight. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.wednesday...southeast winds 10 to 20 knots. a slight chance of
rain showers. waves building to 2 to 4 feet. 
.wednesday night...southeast winds 10 to 20 knots veering south
after midnight. a chance of showers. waves subsiding to 1 to
3 feet. 
.thursday...south winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet. 
.thursday night...north winds 10 to 20 knots. a chance of
showers. waves building to 1 to 3 feet. 
.friday...north winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.saturday...southwest winds 10 to 20 knots veering west. waves
building to 2 to 4 feet. 

$$
fzus63 kmqt 260211
glfls 
expires:202110261015;;778786

open lake forecast for lake superior
national weather service marquette mi
1011 pm edt mon oct 25 2021

for waters beyond 5 nautical miles of shore on lake superior.

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 30.4 inch high pressure will remain anchored over 
northern ontario tonight while a broad 29.7 inch low pressure 
moves across the mid- atlantic states into the atlantic 
overnight. the high will shift east to james bay tuesday, enabling
a 30.2 inch ridge across the upper great lakes. the ridge will 
weaken to 29.9 inches wednesday. a 29.3 inch low pressure moves 
into the mid- mississippi valley thursday, enabling troughing to 
average 29.9 inches over the upper great lakes. friday, the low 
reaches the ohio valley at 29.4 inches as 29.9 inch troughing 
lingers over the upper great lakes. weak ridging at 29.9 inches 
replaces the troughing on saturday. 

&&


lsz264-261015-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1011 pm edt mon oct 25 2021

.rest of tonight...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.tuesday...northeast winds 5 to 15 knots veering east in the
afternoon. waves 1 to 3 feet. 
.tuesday night...east winds 5 to 15 knots veering southeast after
midnight. waves 1 to 3 feet. 
.wednesday...southeast winds 5 to 15 knots. waves building to
2 to 4 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. a chance of showers. waves subsiding to 1 to 3 feet. 
.thursday night...southeast winds 5 to 15 knots backing north
after midnight. a chance of showers. waves subsiding to calm to
2 feet. 
.friday...north winds 5 to 15 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots becoming west 10 to
20 knots. waves building to 2 to 4 feet. 

$$
fzus63 kmqt 260211
glfls 
expires:202110261015;;778787

open lake forecast for lake superior
national weather service marquette mi
1011 pm edt mon oct 25 2021

for waters beyond 5 nautical miles of shore on lake superior.

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 30.4 inch high pressure will remain anchored over 
northern ontario tonight while a broad 29.7 inch low pressure 
moves across the mid- atlantic states into the atlantic 
overnight. the high will shift east to james bay tuesday, enabling
a 30.2 inch ridge across the upper great lakes. the ridge will 
weaken to 29.9 inches wednesday. a 29.3 inch low pressure moves 
into the mid- mississippi valley thursday, enabling troughing to 
average 29.9 inches over the upper great lakes. friday, the low 
reaches the ohio valley at 29.4 inches as 29.9 inch troughing 
lingers over the upper great lakes. weak ridging at 29.9 inches 
replaces the troughing on saturday. 

&&


lsz265-261015-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1011 pm edt mon oct 25 2021

.rest of tonight...northeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a slight chance of showers after
midnight. waves 3 to 5 feet occasionally to 7 feet subsiding to
2 to 4 feet. 
.tuesday...northeast winds 10 to 20 knots veering east in the
afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots veering southeast
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...southeast winds 10 to 20 knots. waves building to
2 to 4 feet. 
.wednesday night...south winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.thursday...southeast winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet. 
.thursday night...east winds 10 to 20 knots backing north after
midnight. a chance of showers. waves calm to 2 feet. 
.friday...north winds 10 to 20 knots. waves building to 1 to
3 feet. 
.saturday...north winds 10 to 20 knots backing west. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$
fzus63 kmqt 260211
glfls 
expires:202110261015;;778788

open lake forecast for lake superior
national weather service marquette mi
1011 pm edt mon oct 25 2021

for waters beyond 5 nautical miles of shore on lake superior.

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 30.4 inch high pressure will remain anchored over 
northern ontario tonight while a broad 29.7 inch low pressure 
moves across the mid- atlantic states into the atlantic 
overnight. the high will shift east to james bay tuesday, enabling
a 30.2 inch ridge across the upper great lakes. the ridge will 
weaken to 29.9 inches wednesday. a 29.3 inch low pressure moves 
into the mid- mississippi valley thursday, enabling troughing to 
average 29.9 inches over the upper great lakes. friday, the low 
reaches the ohio valley at 29.4 inches as 29.9 inch troughing 
lingers over the upper great lakes. weak ridging at 29.9 inches 
replaces the troughing on saturday. 

&&


lsz266-261015-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1011 pm edt mon oct 25 2021

.rest of tonight...northeast winds 15 to 25 knots. a slight
chance of rain showers after midnight. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet. 
.tuesday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots veering southeast
late. waves 1 to 3 feet. 
.wednesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 2 to 4 feet. 
.wednesday night...southeast winds 10 to 20 knots veering south
after midnight. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.thursday...southeast winds 10 to 20 knots. a chance of showers.
waves subsiding to 1 to 3 feet. 
.thursday night...east winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet. 
.friday...north winds 10 to 20 knots. waves building to 1 to
3 feet. 
.saturday...north winds 10 to 20 knots backing west. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 

$$

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