fzus63 kdtx 052056
glflh 
expires:202602060500;;144430

open lake forecast for lake huron
national weather service detroit/pontiac mi
356 pm est thu feb 5 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.40 inches, occludes over hudson bay
tonight into friday. this drags an arctic front across the region
daytime friday. northwest gales and heavy freezing spray are
expected with warnings now in effect for most of lake huron. high
pressure supports quieter conditions into the weekend.


lhz362-363-462-060500-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
356 pm est thu feb 5 2026

...gale warning in effect from friday afternoon through late
friday night...
...heavy freezing spray warning in effect from friday afternoon
through late friday night...

.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots early in the morning. snow likely. a chance of freezing
drizzle. waves 4 to 6 feet. waves occasionally around 8 feet. 
.friday...south winds 10 to 15 knots veering to the southwest
late in the morning...then becoming northwest 20 to 25 knots with
gusts to around 30 knots early in the afternoon increasing to
30 knots with gusts to 35 knot gales late in the afternoon. a
chance of snow. a chance of freezing drizzle in the morning.
freezing spray in the afternoon. waves 2 to 4 feet building to
8 to 12 feet. waves occasionally around 15 feet. 
.friday night...northwest at 35 knot gales becoming north 20 to
25 knots. heavy freezing spray. a chance of snow after midnight.
waves 12 to 16 feet. waves occasionally around 20 feet. a gale
warning may be needed. 
.saturday...northwest winds 15 to 20 knots. heavy freezing spray.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday night...northwest winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. heavy freezing spray in the
evening. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.sunday...north winds 5 to 10 knots veering to the south. waves
1 to 3 feet. 
.monday...southeast winds 10 to 15 knots. waves 2 to 4 feet
building to 3 to 5 feet by midnight. 
.tuesday...southeast winds 10 to 15 knots increasing to 15 to
20 knots by midnight. waves 3 to 5 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 052056
glflh 
expires:202602060500;;144429

open lake forecast for lake huron
national weather service detroit/pontiac mi
356 pm est thu feb 5 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.40 inches, occludes over hudson bay
tonight into friday. this drags an arctic front across the region
daytime friday. northwest gales and heavy freezing spray are
expected with warnings now in effect for most of lake huron. high
pressure supports quieter conditions into the weekend.


lhz361-060500-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
356 pm est thu feb 5 2026

...heavy freezing spray warning in effect from friday afternoon
through late friday night...

.tonight...south winds 10 to 15 knots becoming southwest 5 to
10 knots early in the morning. snow likely in the evening...then
a chance of snow after midnight. a chance of freezing drizzle.
waves 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots becoming northwest 15 to
20 knots late in the morning...then increasing to 20 to 25 knots
with gusts to around 30 knots early in the afternoon increasing
to 30 knots late in the afternoon. a chance of snow in the
morning. a chance of freezing drizzle in the morning. waves
2 feet or less building to 6 to 9 feet. waves occasionally around
12 feet. 
.friday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 15 to 20 knots with gusts to around
30 knots in the late evening and overnight. heavy freezing spray
in the evening. waves 5 to 7 feet. waves occasionally around
10 feet. 
.saturday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.saturday night...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...southeast winds 5 to 10 knots. waves 2 feet or less. 
.monday...southeast winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday...southeast winds 10 to 15 knots. waves 2 to 4 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 052029
glflm 
expires:202602060415;;143707

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
229 pm cst thu feb 5 2026

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 continue to gradually increase through this 
afternoon as the pressure gradient tightens as low pressure around 
29.4 inches tracks eastward through james bay region tonight and 
into quebec on friday. this will drag a cold front through the great 
lakes region later this evening and tonight. moderate westerly winds 
tonight will increase and turn more northwesterly for friday behind 
the front, gradually veering due northward. gale force gusts up to 
40kt are expected, thus have upgraded to a gale warning for the open 
waters from late friday morning through the evening. additionally, a 
period of heavy freezing spray is expected from friday afternoon 
into saturday morning and have issued a heavy freezing spray 
warning. northerly winds gradually weaken through the saturday as 
high pressure builds across the region. southerly winds return with 
milder temps as the high pressure pushes east for sunday. 


lmz669-671-673-675-870-872-874-876-060415-
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 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-
229 pm cst thu feb 5 2026

sheboygan wi to pentwater mi south to winthrop harbor il to south
haven mi...

...gale warning in effect from friday morning through friday
evening...
...heavy freezing spray warning in effect from friday morning
through late friday night...

.tonight...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
chance of snow and slight chance of light freezing rain this
evening, then chance of snow overnight. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.friday...northwest winds 15 to 25 kt becoming north gales to
40 kt. snow likely with slight chance of rain in the morning,
then chance of snow and light freezing rain in the afternoon.
freezing spray in the afternoon. waves 4 to 6 ft occasionally to
8 ft building to 12 to 16 ft occasionally to 21 ft. 
.friday night...north gales to 40 kt diminishing to 30 kt. heavy
freezing spray. chance of snow. waves 14 to 18 ft occasionally to
23 ft subsiding to 10 to 14 ft occasionally to 18 ft. 
.saturday...north winds 15 to 25 kt becoming northwest 10 to
15 kt in the afternoon. freezing spray in the morning. waves 7 to
10 ft occasionally to 13 ft subsiding to 4 to 7 ft occasionally
to 9 ft. 
.saturday night...southwest winds 10 to 15 kt becoming south
10 to 20 kt. freezing spray overnight. waves 2 to 4 ft subsiding
to 1 to 3 ft. 
.sunday...south winds 10 to 20 kt. waves 3 to 5 ft. 
.sunday night...south winds 10 to 20 kt. waves 3 to 5 ft building
to 4 to 6 ft occasionally to 8 ft. 
.monday...south winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft. 
.tuesday...south winds 10 to 20 kt becoming southeast. waves 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 052029
glflm 
expires:202602060415;;143706

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
229 pm cst thu feb 5 2026

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 continue to gradually increase through this 
afternoon as the pressure gradient tightens as low pressure around 
29.4 inches tracks eastward through james bay region tonight and 
into quebec on friday. this will drag a cold front through the great 
lakes region later this evening and tonight. moderate westerly winds 
tonight will increase and turn more northwesterly for friday behind 
the front, gradually veering due northward. gale force gusts up to 
40kt are expected, thus have upgraded to a gale warning for the open 
waters from late friday morning through the evening. additionally, a 
period of heavy freezing spray is expected from friday afternoon 
into saturday morning and have issued a heavy freezing spray 
warning. northerly winds gradually weaken through the saturday as 
high pressure builds across the region. southerly winds return with 
milder temps as the high pressure pushes east for sunday. 


lmz261-362-364-366-563-565-567-868-060415-
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-
229 pm cst thu feb 5 2026

sheboygan wi to pentwater mi north...

...gale warning in effect from friday morning through friday
evening...
...heavy freezing spray warning in effect from friday morning
through late friday night...

.tonight...southwest winds 10 to 20 kt becoming northwest. chance
of snow. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.friday...northwest winds to 30 kt becoming north gales to 40 kt.
chance of snow in the morning, then chance of snow and light
freezing rain in the afternoon. heavy freezing spray in the
afternoon. waves 3 to 5 ft building to 12 to 16 ft occasionally
to 21 ft. 
.friday night...north gales to 40 kt diminishing to 30 kt. heavy
freezing spray. chance of snow. waves 12 to 16 ft occasionally to
21 ft subsiding to 8 to 11 ft occasionally to 14 ft. 
.saturday...north winds 15 to 25 kt becoming northwest 10 to
15 kt in the afternoon. waves 6 to 9 ft occasionally to 12 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.saturday night...west winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft. 
.sunday...south winds 10 to 20 kt. waves 3 to 5 ft. 
.sunday night...south winds 10 to 20 kt. waves 3 to 5 ft building
to 4 to 6 ft occasionally to 8 ft. 
.monday...south winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft. 
.tuesday...south winds 10 to 20 kt becoming southeast. waves 4 to
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft.  

$$

fzus63 kmqt 052108 cca
glfls 
expires:202602060900;;145453

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 5 2026

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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz265-060900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est thu feb 5 2026

...gale warning in effect from friday morning through friday
evening...
...heavy freezing spray warning in effect from friday morning
through saturday morning...

.late this afternoon...west winds 10 to 20 knots. a chance of
snow showers and freezing drizzle. waves calm to 2 feet. 
.tonight...west winds 10 to 20 knots increasing to 15 to 25 knots
by midnight, then becoming northwest 20 to 30 knots late. a
chance of freezing drizzle in the evening. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet. 
.friday...north gales to 40 knots. a chance of snow showers.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 9 to 12 feet occasionally to 15 feet. 
.friday night...north gales to 35 knots diminishing to 20 to
30 knots by midnight, then becoming northwest 15 to 25 knots
late. snow showers likely in the evening, then a chance of snow
showers after midnight. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.saturday...northwest winds 10 to 20 knots. a chance of snow
showers. waves subsiding to 1 to 3 feet. 
.saturday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.sunday...south winds 10 to 20 knots. waves calm to 2 feet. 
.sunday night...south winds 10 to 20 knots. waves calm to 2 feet.
.monday...south winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots becoming northwest
15 to 25 knots. waves building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052108 cca
glfls 
expires:202602060900;;145454

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 5 2026

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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz266-060900-
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 feb 5 2026

...gale warning in effect from friday morning through late friday
night...
...heavy freezing spray warning in effect from friday morning
through saturday afternoon...

.late this afternoon...southwest winds 10 to 20 knots. a chance
of snow showers. waves 2 to 4 feet. 
.tonight...west winds 10 to 20 knots veering northwest by
midnight, then becoming north gales to 35 knots late. a chance of
snow showers. waves subsiding to 1 to 3 feet, then building to
6 to 9 feet occasionally to 11 feet. 
.friday...north gales to 45 knots. heavy freezing spray. a chance
of snow showers in the morning. snow showers likely in the
afternoon. waves building to 12 to 17 feet occasionally to
21 feet. 
.friday night...north gales to 45 knots. heavy freezing spray.
snow showers. waves subsiding to 8 to 11 feet occasionally to
14 feet. 
.saturday...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. heavy freezing spray in the morning. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.saturday night...southwest winds 10 to 20 knots backing south
after midnight. a chance of snow showers. waves subsiding to calm
to 2 feet. 
.sunday...south winds 10 to 20 knots. waves building to 1 to
3 feet. 
.sunday night...south winds 15 to 25 knots. waves building to
2 to 4 feet. 
.monday...south winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052108 cca
glfls 
expires:202602060900;;145455

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 5 2026

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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz267-060900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est thu feb 5 2026

...gale warning in effect from friday morning through late friday
night...
...heavy freezing spray warning in effect from friday morning
through saturday afternoon...

.late this afternoon...southwest winds 10 to 20 knots. snow
showers likely. waves 1 to 3 feet. 
.tonight...southwest winds 10 to 20 knots veering west by
midnight, then becoming north 15 to 25 knots late. snow showers
likely. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.friday...north gales to 45 knots. heavy freezing spray. a chance
of snow showers. waves building to 12 to 17 feet occasionally to
21 feet, then subsiding to 11 to 15 feet occasionally to 19 feet.
.friday night...north gales to 40 knots diminishing to 20 to
30 knots late. heavy freezing spray. snow showers. waves
subsiding to 7 to 10 feet occasionally to 13 feet. 
.saturday...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. heavy freezing spray in the morning. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots backing south
after midnight. waves subsiding to calm to 2 feet. 
.sunday...south winds 10 to 20 knots. waves building to 1 to
3 feet. 
.sunday night...south winds 10 to 20 knots becoming southeast
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.monday...south winds 15 to 25 knots. waves subsiding to 1 to
3 feet. 
.tuesday...southeast winds 15 to 25 knots. waves 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052108 cca
glfls 
expires:202602060900;;145450

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 5 2026

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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz162-060900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est thu feb 5 2026 /300 pm cst thu feb 5 2026/

.late this afternoon...west winds 10 to 20 knots. waves calm to
2 feet. 
.tonight...west winds 10 to 20 knots becoming north 15 to
25 knots late. a chance of rain showers in the evening. a chance
of freezing drizzle and snow showers. waves calm to 2 feet. 
.friday...north winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.friday night...north winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots backing southeast in the
afternoon. a slight chance of snow showers in the afternoon.
waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. a chance of snow showers. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 
.tuesday...northeast winds 5 to 15 knots becoming northwest 10 to
20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052108 cca
glfls 
expires:202602060900;;145451

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 5 2026

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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz263-060900-
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 feb 5 2026

...gale warning in effect from friday morning through friday
afternoon...
...heavy freezing spray warning in effect from friday morning
through friday evening...

.late this afternoon...west winds 10 to 20 knots. a chance of
freezing drizzle. waves 2 to 4 feet. 
.tonight...west winds 10 to 20 knots becoming north 20 to
30 knots late. a chance of freezing drizzle in the evening. a
chance of snow showers. waves subsiding to calm to 2 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.friday...north gales to 35 knots diminishing to 20 to 30 knots.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 15 to 25 knots diminishing to 10 to
20 knots late. waves subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southeast less
than 10 knots in the afternoon. waves subsiding to calm to
2 feet. 
.saturday night...southeast winds 5 to 15 knots veering south
after midnight. a chance of snow showers. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots backing northwest. waves
building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052108 cca
glfls 
expires:202602060900;;145452

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu feb 5 2026

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...

troughing over lake superior deepens to 29.6 inches tonight as its 
parent low deepens to 29.3 inches over hudson bay. the 29.6 inch 
trough over the lake then leaves to the east on friday, allowing a 
30.5 inch high to move over the lake by saturday. the high shifts 
east through sunday in advance of a clipper low arriving over far 
western lake superior at 29.8 inches by monday morning. because this 
clipper low deteriorates over the upper great lakes on monday, weak 
ridging of 30.0 inches returns over lake superior on tuesday.



lsz264-060900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est thu feb 5 2026

...gale warning in effect from friday morning through friday
evening...
...heavy freezing spray warning in effect from friday morning
through saturday morning...

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

note, wave height forecasts are for ice free areas.

$$