fzus63 kdtx 050854
glflh 
expires:202512051700;;036965

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am est fri dec 5 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.


lhz361-051700-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
354 am est fri dec 5 2025

.today...southwest winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots in the afternoon. a chance of
snow. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...southwest winds 15 to 20 knots. a chance of snow.
waves 3 to 5 feet. 
.saturday...west winds 15 to 20 knots. a chance of snow in the
morning. waves 4 to 6 feet. 
.saturday night...northwest winds 10 to 15 knots becoming west
5 to 10 knots in the late evening and overnight. a chance of snow
after midnight. waves 4 to 6 feet subsiding to 2 feet or less.
waves occasionally around 8 feet. 
.sunday...west winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then becoming north 15 to 20 knots late in
the afternoon decreasing to 5 to 10 knots late in the evening. a
chance of snow. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...northwest winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening becoming south
20 to 25 knots in the late evening and early morning. a chance of
snow until early morning. waves 1 to 3 feet building to 3 to
5 feet until early morning. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. snow likely until afternoon...then a chance of snow
early in the evening. snow likely in the late evening and early
morning. waves 3 to 5 feet subsiding to 2 to 4 feet in the late
evening and early morning. 


$$

fzus63 kdtx 050854
glflh 
expires:202512051700;;036966

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am est fri dec 5 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.


lhz362-363-051700-
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-
354 am est fri dec 5 2025

.today...southwest winds to 30 knots with gusts to 35 knot gales
decreasing to 20 to 25 knots with gusts to around 30 knots in the
afternoon. a chance of snow in the afternoon. waves 10 to
14 feet. waves occasionally around 18 feet. 
.tonight...southwest winds 20 to 25 knots. gusts to 30 knots
until early morning. snow likely in the evening...then a chance
of snow after midnight. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.saturday...west winds 15 to 20 knots. a chance of snow in the
morning. waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots in the late evening and overnight. waves 4 to
6 feet. waves occasionally around 8 feet. 
.sunday...west winds 5 to 10 knots becoming northwest 15 to
20 knots late in the morning...then increasing to 20 to 25 knots
late in the afternoon becoming north 15 to 20 knots late in the
evening. snow likely in the morning...then a chance of snow late
in the morning. waves 1 to 3 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.monday...north winds 5 to 10 knots becoming northwest 10 to
15 knots in the late morning and early afternoon...then becoming
southwest 15 to 20 knots early in the evening increasing to
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 8 to 12 feet. waves occasionally around 15 feet. 
.tuesday...southwest winds to 30 knots decreasing to 15 to
20 knots. snow likely until afternoon...then a chance of snow
early in the evening. snow likely in the late evening and early
morning. waves 8 to 12 feet subsiding to 4 to 6 feet in the late
evening and early morning. waves occasionally around 15 feet. 


$$

fzus63 kdtx 050854
glflh 
expires:202512051700;;036967

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am est fri dec 5 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.


lhz462>464-051700-
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-
354 am est fri dec 5 2025

.today...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the afternoon. waves
5 to 7 feet. waves occasionally around 9 feet. 
.tonight...southwest winds 20 to 25 knots. a chance of snow.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.saturday...southwest winds 15 to 20 knots veering to the west
early in the afternoon. a chance of snow in the morning. waves
4 to 6 feet. 
.saturday night...west winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. a chance of snow
after midnight. waves 3 to 5 feet. waves occasionally around
8 feet. 
.sunday...west winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then becoming northwest 20 to 25 knots late
in the afternoon becoming north 15 to 20 knots late in the
evening. snow likely...then a chance of snow late in the
afternoon. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.monday...north winds 10 to 15 knots backing to the southwest
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 4 to 6 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. gusts to 30 knots
until afternoon. a chance of snow...then snow likely in the late
evening and early morning. waves 5 to 7 feet. waves occasionally
around 10 feet. 


$$

fzus63 kmkx 050905
glflm 
expires:202512051630;;037998

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cst fri dec 5 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...

gusty southwest winds will continue today between a low pressure
trough of 29.7 inches approaching from the northwest and high
pressure of 30.4 inches over the northeast united states. gale
force gusts are expected to persist across the north half of the 
lake through the early morning hours. breezy westerly winds
tonight will gradually ease while veering to the northwest on
saturday, as high pressure of 30.0 inches builds in from the west.
breezy northerly winds are then expected sunday as low pressure 
passes by to the south and strong high pressure of 30.5 inches 
begins to build in from the west. more rounds of gusty winds are 
expected at times the first half of next week, as multiple low 
pressure systems move through the region.


lmz261-362-364-366-563-565-567-868-051630-
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-
305 am cst fri dec 5 2025

sheboygan wi to pentwater mi north...

...gale warning in effect until 9 am cst this morning...

.today...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 5 to 8 ft occasionally to 10 ft. 
.tonight...southwest winds to 30 kt becoming northwest 15 to
25 kt. snow in the evening, then chance of snow overnight. waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.saturday...northwest winds to 30 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.saturday night...northwest winds 10 to 15 kt increasing to 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
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.monday...southwest winds 10 to 20 kt increasing to 30 kt. chance
of snow. waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft. 
.tuesday...west winds to 30 kt becoming southwest. chance of
snow. waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to
9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 050905
glflm 
expires:202512051630;;037999

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cst fri dec 5 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...

gusty southwest winds will continue today between a low pressure
trough of 29.7 inches approaching from the northwest and high
pressure of 30.4 inches over the northeast united states. gale
force gusts are expected to persist across the north half of the 
lake through the early morning hours. breezy westerly winds
tonight will gradually ease while veering to the northwest on
saturday, as high pressure of 30.0 inches builds in from the west.
breezy northerly winds are then expected sunday as low pressure 
passes by to the south and strong high pressure of 30.5 inches 
begins to build in from the west. more rounds of gusty winds are 
expected at times the first half of next week, as multiple low 
pressure systems move through the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-051630-
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-
305 am cst fri dec 5 2025

sheboygan wi to pentwater mi south...

.today...southwest winds to 30 kt. slight chance of snow this
afternoon. waves 8 to 11 ft occasionally to 14 ft subsiding to
6 to 9 ft occasionally to 12 ft. 
.tonight...southwest winds to 30 kt becoming west 15 to 25 kt.
chance of snow and slight chance of light freezing drizzle in the
evening, then chance of snow overnight. waves 6 to 9 ft
occasionally to 12 ft. 
.saturday...northwest winds 15 to 25 kt diminishing to 10 to
15 kt. chance of snow in the morning. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.saturday night...north winds 5 to 10 kt becoming northeast 10 to
15 kt. snow likely overnight. waves 2 to 4 ft. 
.sunday...north winds 15 to 25 kt increasing to 30 kt. snow
likely in the morning, then chance of snow in the afternoon.
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
15 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.monday...south winds 10 to 20 kt becoming southwest to 30 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.tuesday...southwest gales to 35 kt diminishing to 30 kt. chance
of snow. waves 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmqt 050900
glfls 
expires:202512052100;;037332

open lake forecast for lake superior
national weather service marquette mi
400 am est fri dec 5 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 pressure system is moving through ontario early this 
morning. another 29.6 inch trough will pass over the lake tonight, 
extending from a 29.4 inch low over hudson bay. as the trough shifts 
east saturday, 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.



lsz162-052100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est fri dec 5 2025 /300 am cst fri dec 5 2025/

.early this morning...west winds 15 to 25 knots. a slight chance
of snow showers. waves 4 to 8 feet occasionally to 10 feet. 
.today...west winds 10 to 20 knots. a slight chance of snow
showers. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. waves building to 3 to 6 feet occasionally to
8 feet. 
.saturday...northwest winds 10 to 20 knots. 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 southwest
after midnight. waves calm to 2 feet. 
.monday...southwest winds 15 to 25 knots becoming west 10 to
20 knots. a chance of snow showers, then snow showers likely.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to calm to 2 feet. 
.tuesday...west winds 10 to 20 knots becoming northeast 20 to
30 knots. a chance of snow showers, then snow showers likely.
waves building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050900
glfls 
expires:202512052100;;037333

open lake forecast for lake superior
national weather service marquette mi
400 am est fri dec 5 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 pressure system is moving through ontario early this 
morning. another 29.6 inch trough will pass over the lake tonight, 
extending from a 29.4 inch low over hudson bay. as the trough shifts 
east saturday, 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.



lsz263-052100-
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 am est fri dec 5 2025

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050900
glfls 
expires:202512052100;;037334

open lake forecast for lake superior
national weather service marquette mi
400 am est fri dec 5 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 pressure system is moving through ontario early this 
morning. another 29.6 inch trough will pass over the lake tonight, 
extending from a 29.4 inch low over hudson bay. as the trough shifts 
east saturday, 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.



lsz264-052100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est fri dec 5 2025

...gale warning in effect until 7 am est this morning...

.early this morning...west winds 20 to 30 knots. a chance of snow
showers. waves 9 to 12 feet occasionally to 15 feet subsiding to
8 to 11 feet occasionally to 14 feet. 
.today...west winds 15 to 25 knots diminishing to 10 to 20 knots.
a chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tonight...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 10 to
20 knots. freezing spray in the morning. a slight chance of snow
showers. waves subsiding to 2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots. a slight chance
of snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday...northwest winds 15 to 25 knots. freezing spray in the
morning. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.tuesday...northwest winds 10 to 20 knots becoming northeast
20 to 30 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050900
glfls 
expires:202512052100;;037335

open lake forecast for lake superior
national weather service marquette mi
400 am est fri dec 5 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 pressure system is moving through ontario early this 
morning. another 29.6 inch trough will pass over the lake tonight, 
extending from a 29.4 inch low over hudson bay. as the trough shifts 
east saturday, 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.



lsz265-052100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est fri dec 5 2025

...gale warning in effect until 7 am est this morning...

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050900
glfls 
expires:202512052100;;037336

open lake forecast for lake superior
national weather service marquette mi
400 am est fri dec 5 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 pressure system is moving through ontario early this 
morning. another 29.6 inch trough will pass over the lake tonight, 
extending from a 29.4 inch low over hudson bay. as the trough shifts 
east saturday, 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.



lsz266-052100-
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 am est fri dec 5 2025

...gale warning in effect until 7 am est this morning...

.early this morning...west winds 20 to 30 knots. freezing spray.
a chance of snow showers. waves 9 to 12 feet occasionally to
15 feet subsiding to 8 to 11 feet occasionally to 14 feet. 
.today...west winds 15 to 25 knots backing southwest. a chance of
snow showers. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.tonight...southwest winds 15 to 25 knots becoming west 20 to
30 knots by midnight, then becoming northwest gales to 35 knots
late. a chance of snow showers. freezing spray after midnight.
waves building to 8 to 11 feet occasionally to 14 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. freezing spray. snow showers likely in
the morning. a chance of snow showers in the afternoon. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 
.saturday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of snow showers in the
evening, then snow showers likely after midnight. freezing spray
after midnight. waves subsiding to 2 to 4 feet, then building to
3 to 5 feet occasionally to 7 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 7 feet occasionally to 9 feet. 
.sunday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 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...west winds 15 to 25 knots veering northeast. a chance
of snow showers. waves subsiding to 2 to 4 feet, then building to
3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 050900
glfls 
expires:202512052100;;037337

open lake forecast for lake superior
national weather service marquette mi
400 am est fri dec 5 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 pressure system is moving through ontario early this 
morning. another 29.6 inch trough will pass over the lake tonight, 
extending from a 29.4 inch low over hudson bay. as the trough shifts 
east saturday, 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.



lsz267-052100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est fri dec 5 2025

...gale warning in effect until 7 am est this morning...

.early this morning...southwest gales to 40 knots. freezing
spray. snow showers likely. waves 9 to 12 feet occasionally to
15 feet subsiding to 8 to 11 feet occasionally to 14 feet. 
.today...southwest winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.tonight...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 8 to 11 feet
occasionally to 14 feet. 
.saturday...northwest gales to 40 knots diminishing to 20 to
30 knots by mid afternoon. freezing spray in the morning. snow
showers likely. waves subsiding to 5 to 8 feet occasionally to
10 feet. 
.saturday night...northwest winds 15 to 25 knots backing west
after midnight. snow showers likely. waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northwest winds 15 to 25 knots veering north in the
afternoon. snow showers likely. waves building to 4 to 7 feet
occasionally to 9 feet. 
.sunday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 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 backing east. snow showers.
waves subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

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