fzus63 kdtx 230210
glflh 
expires:202511231015;;338660

open lake forecast for lake huron
national weather service detroit/pontiac mi
910 pm est sat nov 22 2025

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 tracking through northern ontario this
evening will drag a cold front through the region tonight.
northwest wind gusts behind the front on sunday will reach into
the 25 to 35 knot range over lake huron. winds quickly diminish
sunday evening/night as a ridge of high pressure, 30.20 inches,
arrives.


lhz361-362-231015-
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-
910 pm est sat nov 22 2025

...gale warning in effect from 7 am est sunday through sunday
afternoon...

.rest of tonight...southwest winds 15 to 20 knots. rain likely
this evening...then a chance of rain after midnight. waves 4 to
6 feet. waves occasionally around 8 feet. 
.sunday...west winds 15 to 20 knots becoming northwest 20 to
25 knots in the late morning and afternoon. gusts to 35 knot
gales. waves 6 to 9 feet building to 8 to 12 feet in the
afternoon. waves occasionally around 15 feet. 
.sunday night...northwest winds 15 to 20 knots with gusts to
around 30 knots becoming west 10 to 15 knots in the late evening
and early morning...then becoming southwest 5 to 10 knots after
midnight. waves 6 to 9 feet subsiding to 3 to 5 feet after
midnight. waves occasionally around 12 feet. 
.monday...southwest winds 10 to 15 knots. waves 1 to 3 feet
building to 3 to 5 feet in the late morning and afternoon. 
.monday night...south winds 10 to 15 knots. a chance of rain.
waves 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots becoming southeast 5 to
10 knots late in the afternoon...then becoming south 10 to
15 knots late in the evening. rain likely. waves 3 to 5 feet. 
.wednesday...south winds 20 to 25 knots becoming southwest to
30 knots with gusts to 35 knot gales in the late morning and
early afternoon...then becoming west at 35 knot gales with gusts
to 40 knot gales until early morning. rain and snow likely early
in the morning...then snow until early morning. waves 6 to 9 feet
building to 12 to 16 feet. waves occasionally around 20 feet. a
gale warning may be needed. 
.thursday...west winds to 30 knots increasing to 35 knot gales
early in the evening...then becoming northwest to 30 knots in the
late evening and early morning. snow likely...then a chance of
snow in the late evening and early morning. waves 10 to 14 feet.
waves occasionally around 18 feet. 


$$

fzus63 kdtx 230210
glflh 
expires:202511231015;;338661

open lake forecast for lake huron
national weather service detroit/pontiac mi
910 pm est sat nov 22 2025

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 tracking through northern ontario this
evening will drag a cold front through the region tonight.
northwest wind gusts behind the front on sunday will reach into
the 25 to 35 knot range over lake huron. winds quickly diminish
sunday evening/night as a ridge of high pressure, 30.20 inches,
arrives.


lhz363-462>464-231015-
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-
910 pm est sat nov 22 2025

.rest of tonight...southwest winds 15 to 20 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.sunday...west winds 15 to 20 knots increasing to 20 to 25 knots
in the late morning and early afternoon...then becoming northwest
15 to 20 knots late in the afternoon. gusts to 30 knots. waves
5 to 7 feet building to 8 to 12 feet in the afternoon. waves
occasionally around 15 feet. 
.sunday night...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 6 to 9 feet subsiding to 3 to 5 feet after
midnight. waves occasionally around 12 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots early in the afternoon. waves 1 to 3 feet building to
3 to 5 feet in the late morning and afternoon. 
.monday night...south winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. a chance of rain after midnight. waves
3 to 5 feet. 
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon...then increasing to 10 to 15 knots late in
the evening. a chance of rain...then rain likely late in the
evening. waves 3 to 5 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots increasing to 40 knot gales with gusts to 45 knot gales.
rain likely early in the morning...then a chance of rain and snow
in the late morning and early afternoon. snow likely until early
morning. waves 6 to 9 feet building to 12 to 16 feet. waves
occasionally around 20 feet. a gale warning may be needed. 
.thursday...west at 35 knot gales decreasing to 30 knots in the
late evening and early morning. gusts to 40 knot gales. a chance
of snow. waves 10 to 14 feet. waves occasionally around 18 feet. 


$$

fzus63 kmkx 230257
glflm 
expires:202511231015;;339672

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cst sat nov 22 2025

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...

winds will shift northwest overnight with the passage of low 
pressure around 29.6 inches and a cold front. gusts up to 30 knots
are expected over the open waters. 

high pressure around 30.1 inches briefly returns sunday, with
northwest to west winds easing. modest southerly winds will 
develop monday, as low pressure around 28.7 inches moves into the
upper mississippi river valley. 

the low will strengthen over minnesota and wisconsin on tuesday, 
and cross lake superior as a 29.4 inch low early wednesday 
morning. timing and strength of this low remains uncertain, but a 
period of gale force gusts is looking likely over lake michigan 
wednesday into thursday.


lmz261-362-364-366-563-565-567-868-231015-
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-
857 pm cst sat nov 22 2025

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds to 30 kt becoming northwest.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.sunday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday night...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 3 ft. 
.monday...southwest winds 15 to 25 kt becoming south to 30 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.monday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. rain likely. waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...south winds 10 to 20 kt diminishing to 10 to 15 kt.
rain likely. waves 3 to 5 ft. 
.tuesday night...southwest winds 15 to 25 kt increasing to 30 kt.
rain. waves 3 to 5 ft building to 6 to 9 ft occasionally to
12 ft. 
.wednesday...west gales to 40 kt. chance of snow. waves 8 to
12 ft occasionally to 16 ft. 
.thursday...northwest gales to 40 kt diminishing to gales to
35 kt. chance of snow. waves 8 to 11 ft occasionally to 14 ft
subsiding to 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 230257
glflm 
expires:202511231015;;339673

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cst sat nov 22 2025

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...

winds will shift northwest overnight with the passage of low 
pressure around 29.6 inches and a cold front. gusts up to 30 knots
are expected over the open waters. 

high pressure around 30.1 inches briefly returns sunday, with
northwest to west winds easing. modest southerly winds will 
develop monday, as low pressure around 28.7 inches moves into the
upper mississippi river valley. 

the low will strengthen over minnesota and wisconsin on tuesday, 
and cross lake superior as a 29.4 inch low early wednesday 
morning. timing and strength of this low remains uncertain, but a 
period of gale force gusts is looking likely over lake michigan 
wednesday into thursday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-231015-
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-
857 pm cst sat nov 22 2025

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds to 30 kt becoming northwest
15 to 25 kt. waves 5 to 8 ft occasionally to 10 ft. 
.sunday...northwest winds 15 to 25 kt becoming west 10 to 15 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.sunday night...west winds 5 to 10 kt becoming southwest late in
the evening, then increasing to 10 to 15 kt after midnight
increasing to 10 to 20 kt late. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.monday...south winds 15 to 25 kt. waves 4 to 6 ft occasionally
to 8 ft. 
.monday night...south winds 10 to 20 kt. rain likely in the
evening, then rain overnight. waves 4 to 6 ft occasionally to
8 ft subsiding to 3 to 5 ft. 
.tuesday...south winds 10 to 15 kt becoming southwest. rain
likely in the morning, then chance of rain in the afternoon.
waves 3 to 5 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming west to
30 kt. chance of rain. waves 3 to 5 ft building to 7 to 10 ft
occasionally to 13 ft. 
.wednesday...west gales to 35 kt increasing to gales to 40 kt.
chance of rain and snow. waves 10 to 14 ft occasionally to 18 ft.
.thursday...west winds to 30 kt becoming northwest. waves 10 to
14 ft occasionally to 18 ft subsiding to 8 to 11 ft occasionally
to 14 ft.  

$$

fzus63 kmqt 230300
glfls 
expires:202511230900;;339784

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat nov 22 2025

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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz162-230900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est sat nov 22 2025 /900 pm cst sat nov 22 2025/

.rest of tonight...west winds 20 to 30 knots. waves 2 to 4 feet
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.sunday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.monday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots backing northeast after
midnight. a chance of rain showers in the evening, then rain
showers likely after midnight. waves calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. rain showers. waves building to 2 to
4 feet. 
.tuesday night...north winds 20 to 30 knots. rain showers,
possibly mixed with snow. waves building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...northwest gales to 35 knots. snow showers likely,
then a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 230300
glfls 
expires:202511230900;;339785

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat nov 22 2025

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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz263-230900-
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-
1000 pm est sat nov 22 2025

.rest of tonight...west winds 20 to 30 knots veering northwest by
midnight. waves 3 to 6 feet occasionally to 8 feet building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west winds 15 to 25 knots diminishing to 10 to 20 knots
by late morning, then backing southwest by mid afternoon. waves
subsiding to 1 to 3 feet. 
.sunday night...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a chance of rain
showers in the evening, then rain showers likely after midnight.
waves calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. rain showers. waves building to 3 to
5 feet occasionally to 7 feet. 
.tuesday night...north winds 20 to 30 knots increasing to gales
to 35 knots after midnight. rain showers, possibly mixed with
snow. waves building to 6 to 9 feet occasionally to 11 feet. 
.wednesday...northwest gales to 40 knots. snow showers likely,
then a chance of snow showers. waves building to 7 to 11 feet
occasionally to 14 feet. 
.thursday...northwest gales to 35 knots diminishing to 20 to
30 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 230300
glfls 
expires:202511230900;;339786

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat nov 22 2025

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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz264-230900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est sat nov 22 2025

.rest of tonight...west winds 20 to 30 knots veering northwest by
midnight. a slight chance of rain showers late in the evening.
waves 3 to 6 feet occasionally to 8 feet building to 6 to 9 feet
occasionally to 11 feet. 
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots by late morning, then diminishing to 10 to 20 knots by
mid afternoon. waves subsiding to 2 to 4 feet. 
.sunday night...southwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 5 to 15 knots. a chance of rain
showers in the evening, then rain showers likely after midnight.
waves calm to 2 feet. 
.tuesday...east winds 10 to 20 knots becoming northeast 15 to
25 knots in the afternoon. rain showers likely. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday night...northeast winds 20 to 30 knots becoming north
gales to 35 knots after midnight. rain showers, possibly mixed
with snow. waves building to 7 to 10 feet occasionally to
13 feet. 
.wednesday...northwest gales to 40 knots. snow showers likely.
waves building to 9 to 12 feet occasionally to 15 feet. 
.thursday...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 230300
glfls 
expires:202511230900;;339787

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat nov 22 2025

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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz265-230900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est sat nov 22 2025

...gale warning in effect until 7 am est sunday...

.rest of tonight...west gales to 35 knots becoming northwest
gales to 40 knots by midnight. a slight chance of rain showers
late in the evening. waves 3 to 5 feet occasionally to 7 feet
building to 5 to 8 feet occasionally to 10 feet. 
.sunday...northwest gales to 35 knots becoming west 20 to
30 knots by late morning, then diminishing to 10 to 20 knots by
mid afternoon. waves subsiding to calm to 2 feet. 
.sunday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.monday...southwest winds 10 to 20 knots backing south in the
afternoon. a slight chance of showers in the afternoon. waves
calm to 2 feet. 
.monday night...south winds 5 to 15 knots backing southeast after
midnight. rain showers. waves calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots becoming east 15 to
25 knots in the afternoon. rain showers. waves calm to 2 feet. 
.tuesday night...east winds 15 to 25 knots becoming north gales
to 35 knots after midnight. rain showers. snow showers after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...northwest gales to 45 knots. snow showers. waves
building to 8 to 12 feet occasionally to 15 feet. 
.thursday...northwest gales to 40 knots. snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 230300
glfls 
expires:202511230900;;339788

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat nov 22 2025

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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz266-230900-
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-
1000 pm est sat nov 22 2025

...gale warning in effect until 10 am est sunday...

.rest of tonight...west winds 20 to 30 knots becoming northwest
gales to 40 knots by midnight. a slight chance of rain showers.
waves 3 to 6 feet occasionally to 8 feet building to 9 to 12 feet
occasionally to 15 feet. 
.sunday...northwest gales to 35 knots diminishing to 20 to
30 knots by late morning, then becoming west 15 to 25 knots by
mid afternoon. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.sunday night...southwest winds 10 to 20 knots backing south by
midnight, then veering southwest late. waves subsiding to 1 to
3 feet. 
.monday...southwest winds 15 to 25 knots becoming south 10 to
20 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.monday night...south winds 10 to 20 knots. rain showers. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots. rain showers. waves
building to 2 to 4 feet. 
.tuesday night...southeast winds 15 to 25 knots becoming south
20 to 30 knots after midnight. rain showers. snow showers after
midnight. waves building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...northwest gales to 40 knots. snow showers. waves
building to 11 to 15 feet occasionally to 19 feet. 
.thursday...northwest gales to 40 knots. snow showers. waves
subsiding to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 230300
glfls 
expires:202511230900;;339789

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sat nov 22 2025

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 weak 29.0 inch low track se across lake superior tonight through 
early sunday. the weak low presses east and weakens to 29.0 inches 
while 30.0 inch ridging returns overhead lake superior through 
monday. broad 29.9 inch low pressure then emanates out of the plains 
and northern rockies before deepening to near 29.4 inch low pressure 
over lake superior wednesday. this low then deepens to near 29.1 
inches while ascending north into quebec thursday while 30.4 inch 
high pressure returns to the plains. this creates a strong pressure 
gradient over lake superior thursday and friday before the pressure 
gradient slackens as the high pressure moves into the great lakes.



lsz267-230900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est sat nov 22 2025

...gale warning in effect until 10 am est sunday...

.rest of tonight...southwest winds 20 to 30 knots veering west by
midnight, then becoming northwest gales to 35 knots late. a
chance of rain showers. waves 3 to 6 feet occasionally to 8 feet
building to 9 to 12 feet occasionally to 15 feet. 
.sunday...northwest gales to 40 knots diminishing to 20 to
30 knots by mid afternoon. a slight chance of rain showers in the
morning. waves subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday night...west winds 10 to 20 knots backing south by
midnight. waves subsiding to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots backing south in the
afternoon. a slight chance of rain showers in the afternoon.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.monday night...south winds 10 to 20 knots. rain showers. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots. rain showers. waves
building to 1 to 3 feet. 
.tuesday night...southeast winds 15 to 25 knots becoming south
20 to 30 knots after midnight. rain showers. waves building to
3 to 5 feet occasionally to 7 feet. 
.wednesday...west gales to 35 knots becoming northwest gales to
40 knots. rain showers. snow showers. waves building to 10 to
14 feet occasionally to 18 feet. 
.thursday...northwest gales to 35 knots. snow showers. waves
building to 11 to 15 feet occasionally to 19 feet, then subsiding
to 6 to 9 feet occasionally to 11 feet. 

$$