fzus63 kdtx 042032
glflh 
expires:202512050445;;009163

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm est thu dec 4 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...high pressure, 30.50 inches, will build across the
region this evening into tonight. much colder air activates lake
effect snow showers and is favorable for freezing spray through
the late week period. next low, 29.50 inches, will pass through
ontario on friday pulling a cold front through early saturday.


lhz361-362-050445-
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-
332 pm est thu dec 4 2025

.tonight...southwest winds 10 to 15 knots increasing to 30 knots.
waves 5 to 7 feet building to 8 to 12 feet early in the morning.
waves occasionally around 15 feet. 
.friday...southwest winds to 30 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots. a chance of snow. waves 10 to
14 feet. waves occasionally around 18 feet. 
.friday night...southwest winds 15 to 20 knots. snow likely.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.saturday...west winds 15 to 20 knots. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.saturday night...northwest winds 15 to 20 knots becoming north
5 to 10 knots in the late evening and overnight. waves 4 to
6 feet. waves occasionally around 8 feet. 
.sunday...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon...then becoming north 10 to
15 knots late in the evening. a chance of snow. waves 3 to
5 feet. 
.monday...northwest winds 10 to 15 knots becoming southwest 15 to
20 knots early in the evening...then increasing to 20 to 25 knots
in the late evening and early morning. a chance of snow in the
late evening and early morning. waves 2 to 4 feet building to
5 to 7 feet until early morning. waves occasionally around
10 feet. 
.tuesday...southwest winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and early afternoon...then veering
to the west early in the evening decreasing to 10 to 15 knots in
the late evening and early morning. snow likely until afternoon.
waves 6 to 9 feet. waves occasionally around 12 feet. 


$$

fzus63 kdtx 042032
glflh 
expires:202512050445;;009164

open lake forecast for lake huron
national weather service detroit/pontiac mi
332 pm est thu dec 4 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...high pressure, 30.50 inches, will build across the
region this evening into tonight. much colder air activates lake
effect snow showers and is favorable for freezing spray through
the late week period. next low, 29.50 inches, will pass through
ontario on friday pulling a cold front through early saturday.


lhz363-462-050445-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
332 pm est thu dec 4 2025

.tonight...west winds 10 to 15 knots becoming southwest to
30 knots. waves 3 to 5 feet building to 6 to 9 feet after
midnight. waves occasionally around 12 feet. 
.friday...southwest winds to 30 knots with isolated gusts to 35 
knot gales decreasing to 20 to 25 knots with gusts to around 30 
knots in the afternoon. waves 10 to 14 feet. waves occasionally 
around 18 feet. 
.friday night...southwest winds 20 to 25 knots with gusts to
around 30 knots increasing to 30 knots in the late evening and
early morning...then decreasing to 20 to 25 knots after midnight.
snow likely. waves 8 to 12 feet. waves occasionally around
15 feet. 
.saturday...west winds 15 to 20 knots. snow likely in the
morning. waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday night...northwest winds 10 to 15 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.sunday...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then increasing to 20 to 25 knots
late in the afternoon decreasing to 15 to 20 knots late in the
evening. a chance of snow. waves 3 to 5 feet. 
.monday...northwest winds 10 to 15 knots becoming southwest 15 to
20 knots early in the evening...then increasing to 20 to 25 knots
with gusts to around 30 knots in the late evening and early
morning. a chance of snow in the late evening and early morning.
waves 3 to 5 feet building to 6 to 9 feet in the late evening and
early morning. waves occasionally around 12 feet. 
.tuesday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots until early morning. a
chance of snow early in the morning...then snow likely in the
late morning and early afternoon. a chance of snow until early
morning. waves 6 to 9 feet. waves occasionally around 12 feet. 


$$

fzus63 kmkx 042034
glflm 
expires:202512050430;;009176

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
234 pm cst thu dec 4 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...

southwest winds will increase this evening to gale force over the
northern half of the lake as an area of low pressure around 29.6 
inches moves across southwestern ontario. a gale warning is in 
effect from late this evening through mid morning friday. freezing
spray is also expected during this time. 

a cold front extending south of the low will cross the lake friday
night. southwesterly winds remain breezy (25-30 kt gusts) ahead of
the cold front friday, gradually subsiding and veering northwest 
behind it. northwest winds gradually decline throughout saturday 
then become light and variable saturday evening as a weak surface 
ridge of high pressure builds into the region. stronger high 
pressure tracking southeastward through the dakotas and a weak low
pressure system tracking eastward past southern illinois will 
work together to drive north winds around 20-25 kt on sunday. 



lmz261-362-364-366-563-565-567-868-050430-
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-
234 pm cst thu dec 4 2025

sheboygan wi to pentwater mi north...

...gale warning in effect from 9 pm cst this evening through
friday morning...

.tonight...southwest winds to 30 kt increasing to gales to 40 kt.
freezing spray overnight. chance of snow overnight. waves 4 to
7 ft occasionally to 9 ft building to 12 to 16 ft occasionally to
21 ft. 
.friday...southwest gales to 40 kt diminishing to 15 to 25 kt.
chance of snow. waves 10 to 14 ft occasionally to 18 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.friday night...southwest winds to 30 kt becoming west. snow
likely in the evening. waves 6 to 9 ft occasionally to 12 ft.
.saturday...northwest winds to 30 kt diminishing to 15 to 25 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday night...northwest winds 10 to 20 kt. chance of snow
overnight. waves 1 to 3 ft. 
.sunday...north winds 15 to 25 kt. chance of snow in the morning.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.monday...west winds 10 to 20 kt becoming southwest to 30 kt.
chance of snow. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.tuesday...west winds 15 to 25 kt. chance of snow. waves 8 to
12 ft occasionally to 16 ft subsiding to 6 to 9 ft occasionally
to 12 ft.  

$$

fzus63 kmkx 042034
glflm 
expires:202512050430;;009177

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
234 pm cst thu dec 4 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...

southwest winds will increase this evening to gale force over the
northern half of the lake as an area of low pressure around 29.6 
inches moves across southwestern ontario. a gale warning is in 
effect from late this evening through mid morning friday. freezing
spray is also expected during this time. 

a cold front extending south of the low will cross the lake friday
night. southwesterly winds remain breezy (25-30 kt gusts) ahead of
the cold front friday, gradually subsiding and veering northwest 
behind it. northwest winds gradually decline throughout saturday 
then become light and variable saturday evening as a weak surface 
ridge of high pressure builds into the region. stronger high 
pressure tracking southeastward through the dakotas and a weak low
pressure system tracking eastward past southern illinois will 
work together to drive north winds around 20-25 kt on sunday. 



lmz080-669-671-673-675-777-779-870-872-874-876-878-050430-
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-
234 pm cst thu dec 4 2025

sheboygan wi to pentwater mi south...

.tonight...southwest winds 10 to 20 kt increasing to around 30 
kt. waves 2 to 4 ft building to 8 to 12 ft occasionally to 16 ft. 
.friday...southwest winds to 30 kt. slight chance of snow in the
afternoon. waves 8 to 12 ft occasionally to 16 ft subsiding to
7 to 10 ft occasionally to 13 ft. 
.friday night...southwest winds to 30 kt becoming west 15 to
25 kt. snow likely in the evening. waves 7 to 10 ft occasionally
to 13 ft. 
.saturday...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.saturday night...north winds 10 to 15 kt increasing to 10 to
20 kt. chance of snow overnight. waves 3 to 5 ft subsiding to
1 to 3 ft. 
.sunday...north winds 10 to 20 kt increasing to 15 to 25 kt.
chance of snow in the morning. waves 4 to 6 ft occasionally to
8 ft building to 5 to 8 ft occasionally to 10 ft. 
.sunday night...north winds 15 to 25 kt becoming northeast 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.monday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.tuesday...west gales to 35 kt diminishing to 30 kt. chance of
snow. waves 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmqt 042101
glfls 
expires:202512050900;;010317

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 4 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 29.7 inch low will pass north of lake superior overnight into 
friday. another 29.6 inch trough will pass over the lake friday 
night, extending from a 29.4 inch low over hudson bay. as the trough 
shifts east, another 30.4 inch high builds over the northern plains 
and shifts east across the great lakes through the weekend ahead of 
the next clipper low arriving over lake superior at around 29.6 
inches on monday and into tuesday morning.



lsz162-050900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est thu dec 4 2025 /300 pm cst thu dec 4 2025/

...gale warning in effect until 4 am est /3 am cst/ friday...

.late this afternoon...southwest gales to 35 knots. freezing
spray. a slight chance of snow showers. waves 6 to 9 feet
occasionally to 11 feet. 
.tonight...southwest gales to 40 knots becoming west 15 to
25 knots late. freezing spray. a chance of snow showers. waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 
.friday...west winds 10 to 20 knots. a chance of snow showers.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.friday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots by midnight, then diminishing to 15 to 25 knots
late. a slight chance of snow showers in the evening. waves
building to 3 to 5 feet occasionally to 7 feet. 
.saturday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.monday...southwest winds 10 to 20 knots. a chance of snow
showers, then snow showers likely. waves building to 2 to 4 feet,
then subsiding to calm to 2 feet. 
.tuesday...northwest winds 10 to 20 knots becoming northeast
15 to 25 knots. a chance of snow showers. waves building to 2 to
4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 042101
glfls 
expires:202512050900;;010318

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 4 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 29.7 inch low will pass north of lake superior overnight into 
friday. another 29.6 inch trough will pass over the lake friday 
night, extending from a 29.4 inch low over hudson bay. as the trough 
shifts east, another 30.4 inch high builds over the northern plains 
and shifts east across the great lakes through the weekend ahead of 
the next clipper low arriving over lake superior at around 29.6 
inches on monday and into tuesday morning.



lsz263-050900-
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-
400 pm est thu dec 4 2025

...gale warning in effect until 4 am est friday...

.late this afternoon...southwest gales to 35 knots. freezing
spray. waves 6 to 9 feet occasionally to 11 feet building to 7 to
10 feet occasionally to 13 feet. 
.tonight...southwest gales to 40 knots becoming west 20 to
30 knots late. freezing spray in the evening. snow showers in the
evening, then a chance of snow showers after midnight. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet. 
.friday...west winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.friday night...west winds 15 to 25 knots becoming northwest
20 to 30 knots by midnight. a chance of snow showers. freezing
spray after midnight. waves building to 5 to 8 feet occasionally
to 10 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots in the afternoon. freezing spray in the morning. a
slight chance of snow showers in the morning. waves subsiding to
1 to 3 feet. 
.saturday night...northwest winds 10 to 20 knots. waves building
to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 
.sunday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 
.tuesday...northwest winds 10 to 20 knots becoming northeast
15 to 25 knots. a chance of snow showers. waves subsiding to calm
to 2 feet, then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 042101
glfls 
expires:202512050900;;010319

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 4 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 29.7 inch low will pass north of lake superior overnight into 
friday. another 29.6 inch trough will pass over the lake friday 
night, extending from a 29.4 inch low over hudson bay. as the trough 
shifts east, another 30.4 inch high builds over the northern plains 
and shifts east across the great lakes through the weekend ahead of 
the next clipper low arriving over lake superior at around 29.6 
inches on monday and into tuesday morning.



lsz264-050900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est thu dec 4 2025

...gale warning in effect through friday morning...

.late this afternoon...southwest gales to 35 knots. freezing
spray. a slight chance of snow showers. waves 5 to 9 feet
occasionally to 11 feet. 
.tonight...southwest gales to 35 knots veering west late.
freezing spray in the evening. snow showers in the evening, then
snow showers likely after midnight. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.friday...west winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.friday night...west winds 15 to 25 knots becoming northwest
20 to 30 knots by midnight. a chance of snow showers. freezing
spray after midnight. waves building to 6 to 9 feet occasionally
to 11 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. freezing spray. a slight chance of
snow showers. waves subsiding to 2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. freezing spray after midnight.
waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northwest winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.sunday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...northwest winds 10 to 20 knots becoming northeast
15 to 25 knots. waves subsiding to 1 to 3 feet, then building to
3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 042101
glfls 
expires:202512050900;;010320

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 4 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 29.7 inch low will pass north of lake superior overnight into 
friday. another 29.6 inch trough will pass over the lake friday 
night, extending from a 29.4 inch low over hudson bay. as the trough 
shifts east, another 30.4 inch high builds over the northern plains 
and shifts east across the great lakes through the weekend ahead of 
the next clipper low arriving over lake superior at around 29.6 
inches on monday and into tuesday morning.



lsz265-050900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est thu dec 4 2025

...gale warning in effect through friday morning...

.late this afternoon...southwest winds 20 to 30 knots. waves 2 to
4 feet building to 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest gales to 35 knots becoming west 20 to
30 knots late. freezing spray. 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. 
.friday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to calm to 2 feet. 
.friday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots by midnight, then becoming northwest gales to
35 knots late. snow showers likely in the evening, then a chance
of snow showers after midnight. waves building to 4 to 7 feet
occasionally to 9 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 2 to 4 feet. 
.saturday night...northwest winds 15 to 25 knots. a chance of
snow showers. waves subsiding to 1 to 3 feet, then building to
2 to 4 feet. 
.sunday...northwest winds 20 to 30 knots. waves building to 3 to
5 feet occasionally to 7 feet. 
.sunday night...northwest winds 15 to 25 knots backing west after
midnight. waves subsiding to calm to 2 feet. 
.monday...southwest winds 15 to 25 knots. a chance of snow
showers, then snow showers likely. waves calm to 2 feet. 
.tuesday...northwest winds 15 to 25 knots becoming north 10 to
20 knots. a chance of snow showers. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 042101
glfls 
expires:202512050900;;010321

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 4 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 29.7 inch low will pass north of lake superior overnight into 
friday. another 29.6 inch trough will pass over the lake friday 
night, extending from a 29.4 inch low over hudson bay. as the trough 
shifts east, another 30.4 inch high builds over the northern plains 
and shifts east across the great lakes through the weekend ahead of 
the next clipper low arriving over lake superior at around 29.6 
inches on monday and into tuesday morning.



lsz266-050900-
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-
400 pm est thu dec 4 2025

...gale warning in effect through friday morning...

.late this afternoon...southwest winds 20 to 30 knots. freezing
spray. a slight chance of snow showers. waves 4 to 8 feet
occasionally to 10 feet. 
.tonight...southwest gales to 40 knots. freezing spray. a chance
of snow showers. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 8 to 11 feet occasionally to 14 feet. 
.friday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to 2 to 4 feet. 
.friday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots by midnight, then becoming northwest gales to
35 knots late. snow showers in the evening, then a chance of snow
showers after midnight. freezing spray after midnight. waves
building to 7 to 10 feet occasionally to 13 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. freezing spray. a chance of snow
showers. waves building to 8 to 11 feet occasionally to 14 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday night...northwest winds 15 to 25 knots. a chance of
snow showers. freezing spray after midnight. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots. freezing spray. snow
showers likely in the morning. a chance of snow showers in the
afternoon. waves building to 4 to 8 feet occasionally to 10 feet.
.sunday night...northwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday...southwest winds 15 to 25 knots. a chance of snow
showers, then snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...northwest winds 15 to 25 knots becoming northeast
10 to 20 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 042101
glfls 
expires:202512050900;;010322

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 4 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 29.7 inch low will pass north of lake superior overnight into 
friday. another 29.6 inch trough will pass over the lake friday 
night, extending from a 29.4 inch low over hudson bay. as the trough 
shifts east, another 30.4 inch high builds over the northern plains 
and shifts east across the great lakes through the weekend ahead of 
the next clipper low arriving over lake superior at around 29.6 
inches on monday and into tuesday morning.



lsz267-050900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est thu dec 4 2025

...gale warning in effect through friday morning...

.late this afternoon...southwest winds 20 to 30 knots. a chance
of snow showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...southwest gales to 45 knots. freezing spray. a chance
of snow showers in the evening. snow showers after midnight.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 7 to 10 feet occasionally to 13 feet. 
.friday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots. snow showers likely in the morning, then a chance of
snow showers in the afternoon. waves subsiding to 2 to 4 feet. 
.friday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots by midnight, then becoming northwest gales to
35 knots late. snow showers. waves building to 7 to 10 feet
occasionally to 13 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. snow showers. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday night...northwest winds 15 to 25 knots. snow showers
likely. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 15 to 25 knots. snow showers likely.
waves building to 5 to 8 feet occasionally to 10 feet. 
.sunday night...north winds 15 to 25 knots backing northwest
after midnight. snow showers likely in the evening, then a chance
of snow showers after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers, then snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 15 to 25 knots veering northeast. snow
showers likely, then a chance of snow showers. waves subsiding to
1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$