fzus63 kdtx 041352
glflh 
expires:202310042200;;483363

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt wed oct 4 2023

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, over the mid atlantic
states will push off the east coast today. a cold front arrives
thursday bringing widespread showers and a rumble of thunder. a
stronger secondary cold front moves through friday bringing
potential for gales late saturday and into sunday, especially for
lake huron.


lhz361-042200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
952 am edt wed oct 4 2023

.rest of today...south winds 10 to 15 knots. waves 2 to 4 feet. 
.tonight...south winds 5 to 10 knots. a chance of showers and
thunderstorms in the evening...then showers likely and a chance
of thunderstorms after midnight. waves 3 to 5 feet. 
.thursday...southwest winds 5 to 10 knots veering to the west
early in the afternoon. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.thursday night...south winds 5 to 10 knots veering to the
southwest in the late evening and overnight. a chance of showers
in the evening. waves 1 to 3 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet late in the morning...then subsiding to 1 to
3 feet late in the evening. 
.saturday...northwest winds 15 to 20 knots with gusts to around
30 knots becoming north 20 to 25 knots with gusts to around
30 knots early in the evening...then decreasing to 15 to 20 knots
with gusts to around 30 knots in the late evening and early
morning. waves 3 to 5 feet building to 5 to 7 feet until early
morning. waves occasionally around 10 feet. 
.sunday...northwest winds 15 to 20 knots with gusts to around
30 knots. a chance of showers. waves 5 to 7 feet. waves
occasionally around 10 feet. 


$$

fzus63 kdtx 041352
glflh 
expires:202310042200;;483364

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt wed oct 4 2023

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, over the mid atlantic
states will push off the east coast today. a cold front arrives
thursday bringing widespread showers and a rumble of thunder. a
stronger secondary cold front moves through friday bringing
potential for gales late saturday and into sunday, especially for
lake huron.


lhz362-363-042200-
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-
952 am edt wed oct 4 2023

.rest of today...south winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. waves 3 to 5 feet. 
.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. a chance of showers after midnight.
waves 3 to 5 feet. 
.thursday...south winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the afternoon. showers in
the morning...then showers likely in the afternoon. waves 3 to
5 feet. 
.thursday night...south winds 10 to 15 knots veering to the
southwest after midnight. a chance of showers in the evening. a
chance of waterspouts in the evening. waves 2 to 4 feet subsiding
to 1 to 3 feet after midnight. 
.friday...west winds 10 to 15 knots. waves 2 to 4 feet. 
.saturday...northwest winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to 35 knot gales
until early morning. showers...then showers likely in the late
evening and early morning. waves 6 to 9 feet building to 8 to
12 feet in the late evening and early morning. waves occasionally
around 15 feet. 
.sunday...northwest winds 20 to 25 knots with gusts to 35 knot
gales. a chance of showers until afternoon...then showers likely
until early morning. waves 8 to 12 feet. waves occasionally
around 15 feet. 


$$

fzus63 kdtx 041352
glflh 
expires:202310042200;;483365

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am edt wed oct 4 2023

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, over the mid atlantic
states will push off the east coast today. a cold front arrives
thursday bringing widespread showers and a rumble of thunder. a
stronger secondary cold front moves through friday bringing
potential for gales late saturday and into sunday, especially for
lake huron.


lhz462>464-042200-
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-
952 am edt wed oct 4 2023

.rest of today...south winds 10 to 15 knots. waves 2 to 4 feet. 
.tonight...south winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. showers likely. a
chance of waterspouts in the afternoon. waves 1 to 3 feet. 
.thursday night...southwest winds 10 to 15 knots. a chance of
waterspouts in the evening. showers likely in the evening...then
a chance of showers after midnight. waves 1 to 3 feet building to
2 to 4 feet in the late evening and overnight. 
.friday...west winds 10 to 15 knots. a chance of showers. waves
1 to 3 feet building to 2 to 4 feet. 
.saturday...west winds 15 to 20 knots with gusts to around
30 knots becoming northwest 20 to 25 knots with gusts to 35 knot
gales until early morning. showers...then showers likely in the
late evening and early morning. waves 6 to 9 feet building to
8 to 12 feet in the late evening and early morning. waves
occasionally around 15 feet. 
.sunday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots in the late evening and early morning. gusts to 35 knot
gales. showers likely. waves 8 to 12 feet. waves occasionally
around 15 feet. 


$$

fzus63 kmkx 041355
glflm 
expires:202310042115;;483477

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 am cdt wed oct 4 2023

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 of 29.4 inches over western ontario will deepen and 
move northeast across canada through the later half of this week. 
a cold front associated with this low will move east across 
wisconsin today, moving over lake michigan tonight and thursday, 
exiting the lake thursday night. breezy southerly winds and 
building waves are expected today ahead of this front with showers
and thunderstorms possible along the front as it moves across the
lake. gusty northwest winds will then be ushered in on friday 
with winds potentially nearing gale strength friday night through 
the weekend. shower and thunderstorm chances return across the 
lake this weekend with a potential for waterspouts.


lmz261-362-364-366-563-565-567-868-042115-
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-
855 am cdt wed oct 4 2023

sheboygan wi to pentwater mi north...

.rest of today...south winds 15 to 25 kt increasing to 30 kt.
chance of showers and slight chance of thunderstorms this
afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.tonight...south winds to 30 kt becoming southwest 15 to 25 kt
late in the evening, then becoming west 10 to 20 kt after
midnight diminishing to 10 to 15 kt late. chance of showers and
slight chance of thunderstorms in the evening. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.thursday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 2 to 4 ft. 
.thursday night...southwest winds 10 to 20 kt becoming west.
waves 2 to 4 ft. 
.friday...west winds 10 to 20 kt increasing to 15 to 25 kt.
showers likely in the afternoon. waves 3 to 5 ft building to 4 to
6 ft occasionally to 8 ft. 
.friday night...northwest winds 15 to 25 kt increasing to gales
to 35 kt. showers. waves 4 to 7 ft occasionally to 9 ft building
to 8 to 11 ft occasionally to 14 ft. 
.saturday...north gales to 40 kt becoming northwest gales to
35 kt. showers likely. waves 8 to 12 ft occasionally to 16 ft
subsiding to 8 to 11 ft occasionally to 14 ft. 
.sunday...northwest winds to 30 kt. chance of rain showers. waves
4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 041355
glflm 
expires:202310042115;;483478

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 am cdt wed oct 4 2023

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 of 29.4 inches over western ontario will deepen and 
move northeast across canada through the later half of this week. 
a cold front associated with this low will move east across 
wisconsin today, moving over lake michigan tonight and thursday, 
exiting the lake thursday night. breezy southerly winds and 
building waves are expected today ahead of this front with showers
and thunderstorms possible along the front as it moves across the
lake. gusty northwest winds will then be ushered in on friday 
with winds potentially nearing gale strength friday night through 
the weekend. shower and thunderstorm chances return across the 
lake this weekend with a potential for waterspouts.


lmz080-669-671-673-675-777-779-870-872-874-876-878-042115-
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-
855 am cdt wed oct 4 2023

sheboygan wi to pentwater mi south...

.rest of today...south winds 15 to 25 kt increasing to 30 kt.
chance of showers and slight chance of thunderstorms this
afternoon. waves 3 to 5 ft building to 4 to 6 ft occasionally to
8 ft. 
.tonight...southwest winds 10 to 20 kt becoming west 10 to 15 kt.
chance of showers and slight chance of thunderstorms. waves 4 to
6 ft occasionally to 8 ft subsiding to 1 to 3 ft. 
.thursday...northwest winds 10 to 15 kt backing to southwest
10 to 20 kt. chance of showers. waves 1 to 3 ft. 
.thursday night...southwest winds 10 to 20 kt becoming northwest.
waves 2 to 4 ft building to 3 to 5 ft. 
.friday...west winds 15 to 25 kt increasing to 30 kt. waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft. 
.friday night...northwest winds to 30 kt increasing to gales to
35 kt. showers likely. waves 6 to 9 ft occasionally to 12 ft
building to 10 to 14 ft occasionally to 18 ft. 
.saturday...northwest gales to 40 kt diminishing to 30 kt. chance
of showers. waves 12 to 16 ft occasionally to 21 ft. 
.sunday...northwest winds to 30 kt diminishing to 15 to 25 kt.
chance of rain showers. waves 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 041355
glfls 
expires:202310042200;;483483

open lake forecast for lake superior
national weather service marquette mi
955 am edt wed oct 4 2023

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...surface high pressure of 30.2 inches is centered over
new england this morning, with a 29.4 inch low over western
ontario to 29.2 inches while lifting to hudson bay today. an 
associated 29.7 inch trough will sweep east, crossing lake 
superior through the afternoon and evening. on thursday, 29.6 inch
low pressure will develop across far southern manitoba into 
adjacent ontario. as this low tracks north of lake superior on 
thursday night, an associated trough will sweep across lake 
superior. from friday into the weekend, a 30.3 inch ridge over 
the central plains will drift east into the deep south while 
weakening to 30.1 inches. meanwhile low pressure of 29.4 inches
over the north atlantic will retrograde into southern quebec while
strengthening to 29.2 inches.


lsz162-042200-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
955 am edt wed oct 4 2023 /855 am cdt wed oct 4 2023/

.early this morning...south winds 15 to 25 knots. isolated
showers and thunderstorms. waves 2 to 4 feet. 
.today...southwest winds 20 to 30 knots. a slight chance of
thunderstorms through early afternoon. a slight chance of
showers. waves building to 3 to 6 feet occasionally to 8 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then backing southwest late. a slight
chance of showers after midnight. waves subsiding to 2 to 4 feet.
.thursday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, with a few gale force gusts to 35 knots
possible for the afternoon and evening. a slight chance of 
showers. waves building to 5 to 8 feet occasionally to 10 feet.
.thursday night...west winds 20 to 30 knots and a few gale force
gusts to 35 knots possible before diminishing to 15 to 25 knots 
after midnight. a chance of showers. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet 
occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots becoming north 20 to
30 knots by mid afternoon. showers likely through early
afternoon, then a chance of showers by mid afternoon. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
5 to 8 feet occasionally to 10 feet. 
.friday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.sunday...north winds 5 to 15 knots increasing to 10 to 20 knots.
waves building to 1 to 3 feet. 

$$

fzus63 kmqt 041355
glfls 
expires:202310042200;;483484

open lake forecast for lake superior
national weather service marquette mi
955 am edt wed oct 4 2023

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...surface high pressure of 30.2 inches is centered over
new england this morning, with a 29.4 inch low over western
ontario to 29.2 inches while lifting to hudson bay today. an 
associated 29.7 inch trough will sweep east, crossing lake 
superior through the afternoon and evening. on thursday, 29.6 inch
low pressure will develop across far southern manitoba into 
adjacent ontario. as this low tracks north of lake superior on 
thursday night, an associated trough will sweep across lake 
superior. from friday into the weekend, a 30.3 inch ridge over 
the central plains will drift east into the deep south while 
weakening to 30.1 inches. meanwhile low pressure of 29.4 inches
over the north atlantic will retrograde into southern quebec while
strengthening to 29.2 inches.


lsz263-042200-
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-
955 am edt wed oct 4 2023

.early this morning...south winds 20 to 30 knots. isolated
showers. waves 2 to 4 feet building to 3 to 5 feet occasionally
to 7 feet. 
.today...south winds 20 to 30 knots veering west late. a slight
chance of thunderstorms through early afternoon. a slight chance
of showers. waves building to 3 to 6 feet occasionally to 8 feet.
.tonight...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight, then becoming southwest 10 to 20 knots
late. waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, with a few gale force gusts to 35 knots
possible for the afternoon and evening. a chance of showers. 
waves building to 6 to 9 feet occasionally to 11 feet.
.thursday night...west winds 20 to 30 knots with a few gale force
gusts to 35 knots possible early. a chance of showers. waves 
building to 7 to 10 feet occasionally to 13 feet, then subsiding 
to 5 to 8 feet occasionally to 10 feet.
.friday...northwest winds 20 to 30 knots veering north by mid
afternoon. a chance of showers through early afternoon, then
showers likely by mid afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 5 to 8 feet occasionally
to 10 feet. 
.friday night...north winds 20 to 30 knots. a chance of rain
showers. waves building to 5 to 9 feet occasionally to 11 feet. 
.saturday...north winds 20 to 30 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.sunday...north winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 041355
glfls 
expires:202310042200;;483485

open lake forecast for lake superior
national weather service marquette mi
955 am edt wed oct 4 2023

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...surface high pressure of 30.2 inches is centered over
new england this morning, with a 29.4 inch low over western
ontario to 29.2 inches while lifting to hudson bay today. an 
associated 29.7 inch trough will sweep east, crossing lake 
superior through the afternoon and evening. on thursday, 29.6 inch
low pressure will develop across far southern manitoba into 
adjacent ontario. as this low tracks north of lake superior on 
thursday night, an associated trough will sweep across lake 
superior. from friday into the weekend, a 30.3 inch ridge over 
the central plains will drift east into the deep south while 
weakening to 30.1 inches. meanwhile low pressure of 29.4 inches
over the north atlantic will retrograde into southern quebec while
strengthening to 29.2 inches.


lsz264-042200-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
955 am edt wed oct 4 2023

.early this morning...south winds 15 to 25 knots. isolated
showers. waves 3 to 6 feet occasionally to 8 feet. 
.today...south winds 20 to 30 knots veering southwest in the
afternoon, then diminishing to 15 to 25 knots late. a chance of
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. a few gale force gusts to 35 knots
possible during the afternoon and evening. a chance of showers. 
waves subsiding to 2 to 4 feet, then building to 5 to 8 feet 
occasionally to 10 feet.
.thursday night...west winds 20 to 30 knots with a few gale force
gusts to 35 knots possible early. a chance of showers. waves 
building to 7 to 10 feet occasionally to 13 feet, then subsiding 
to 5 to 8 feet occasionally to 10 feet.
.friday...northwest winds 20 to 30 knots veering north by mid
afternoon. showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 5 to 8 feet occasionally
to 10 feet. 
.friday night...north winds 20 to 30 knots. a chance of showers.
waves building to 7 to 10 feet occasionally to 13 feet. 
.saturday...north winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to 2 to 4 feet. 
.sunday...north winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 041355
glfls 
expires:202310042200;;483486

open lake forecast for lake superior
national weather service marquette mi
955 am edt wed oct 4 2023

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...surface high pressure of 30.2 inches is centered over
new england this morning, with a 29.4 inch low over western
ontario to 29.2 inches while lifting to hudson bay today. an 
associated 29.7 inch trough will sweep east, crossing lake 
superior through the afternoon and evening. on thursday, 29.6 inch
low pressure will develop across far southern manitoba into 
adjacent ontario. as this low tracks north of lake superior on 
thursday night, an associated trough will sweep across lake 
superior. from friday into the weekend, a 30.3 inch ridge over 
the central plains will drift east into the deep south while 
weakening to 30.1 inches. meanwhile low pressure of 29.4 inches
over the north atlantic will retrograde into southern quebec while
strengthening to 29.2 inches.


lsz265-042200-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
955 am edt wed oct 4 2023

.early this morning...south winds 10 to 20 knots. isolated
showers. waves 2 to 4 feet. 
.today...south winds 15 to 25 knots becoming southwest 10 to
20 knots late. a chance of showers. a slight chance of
thunderstorms by mid afternoon. waves subsiding to 1 to 3 feet. 
.tonight...west winds 10 to 20 knots. a slight chance of showers
and thunderstorms through midnight. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.thursday...southwest winds 10 to 20 knots backing south in the
afternoon, then veering southwest late. a chance of showers.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.thursday night...west winds 10 to 20 knots. a chance of showers.
waves building to 2 to 4 feet. 
.friday...west winds 15 to 25 knots becoming northwest 20 to
30 knots by mid afternoon. showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...north winds 20 to 30 knots. showers through
midnight, then a chance of showers after midnight. waves building
to 8 to 11 feet occasionally to 14 feet. 
.saturday...north winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of showers. waves subsiding to 2 to 4 feet. 
.sunday...north winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus63 kmqt 041355
glfls 
expires:202310042200;;483487

open lake forecast for lake superior
national weather service marquette mi
955 am edt wed oct 4 2023

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...surface high pressure of 30.2 inches is centered over
new england this morning, with a 29.4 inch low over western
ontario to 29.2 inches while lifting to hudson bay today. an 
associated 29.7 inch trough will sweep east, crossing lake 
superior through the afternoon and evening. on thursday, 29.6 inch
low pressure will develop across far southern manitoba into 
adjacent ontario. as this low tracks north of lake superior on 
thursday night, an associated trough will sweep across lake 
superior. from friday into the weekend, a 30.3 inch ridge over 
the central plains will drift east into the deep south while 
weakening to 30.1 inches. meanwhile low pressure of 29.4 inches
over the north atlantic will retrograde into southern quebec while
strengthening to 29.2 inches.


lsz266-042200-
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-
955 am edt wed oct 4 2023

.early this morning...south winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.today...south winds 20 to 30 knots diminishing to 15 to 25 knots
late. a chance of showers. a slight chance of thunderstorms by
mid afternoon. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 15 to 25 knots veering west after
midnight, then diminishing to 10 to 20 knots late. a chance of
showers and thunderstorms through midnight. waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...southwest winds 10 to 20 knots becoming south 15 to
25 knots in the afternoon, then veering southwest late. a chance
of showers. waves subsiding to 2 to 4 feet, then building to 3 to
6 feet occasionally to 8 feet. 
.thursday night...west winds 15 to 25 knots. a chance of showers.
waves building to 5 to 9 feet occasionally to 11 feet. 
.friday...west winds 15 to 25 knots becoming northwest 20 to
30 knots by mid afternoon. showers. waves subsiding to 3 to
6 feet occasionally to 8 feet, then building to 5 to 8 feet
occasionally to 10 feet. 
.friday night...north winds 20 to 30 knots. showers through
midnight, then a chance of showers after midnight. waves building
to 9 to 12 feet occasionally to 15 feet. 
.saturday...north winds 20 to 30 knots diminishing to 15 to
25 knots. showers likely, then a chance of showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...north winds 15 to 25 knots. a chance of showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 041355
glfls 
expires:202310042200;;483488

open lake forecast for lake superior
national weather service marquette mi
955 am edt wed oct 4 2023

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...surface high pressure of 30.2 inches is centered over
new england this morning, with a 29.4 inch low over western
ontario to 29.2 inches while lifting to hudson bay today. an 
associated 29.7 inch trough will sweep east, crossing lake 
superior through the afternoon and evening. on thursday, 29.6 inch
low pressure will develop across far southern manitoba into 
adjacent ontario. as this low tracks north of lake superior on 
thursday night, an associated trough will sweep across lake 
superior. from friday into the weekend, a 30.3 inch ridge over 
the central plains will drift east into the deep south while 
weakening to 30.1 inches. meanwhile low pressure of 29.4 inches
over the north atlantic will retrograde into southern quebec while
strengthening to 29.2 inches.


lsz267-042200-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
955 am edt wed oct 4 2023

.early this morning...south winds 15 to 25 knots. waves 2 to
4 feet. 
.today...south winds 15 to 25 knots. a chance of showers. a
slight chance of thunderstorms by mid afternoon. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.tonight...south winds 15 to 25 knots becoming west 5 to 15 knots
after midnight. a chance of showers and thunderstorms. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
1 to 3 feet. 
.thursday...west winds 5 to 15 knots backing south late. a chance
of showers by mid afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...southwest winds 10 to 20 knots veering west
after midnight. a chance of showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.friday...west winds 15 to 25 knots. showers. waves building to
3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 20 to 30 knots. showers. waves
building to 7 to 10 feet occasionally to 13 feet. 
.saturday...north winds 20 to 30 knots diminishing to 15 to
25 knots. showers likely. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday...north winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of showers, then showers likely. waves
building to 4 to 7 feet occasionally to 9 feet. 

$$