fzus63 kdtx 220855
glflh 
expires:202601221700;;315860

open lake forecast for lake huron
national weather service detroit/pontiac mi
355 am est thu jan 22 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, 29.70 inches, will exit from the
northern great lakes to quebec this morning. this will draw a
strong arctic cold front across the great lakes. expect elevated
winds/waves, freezing spray, and additional periods of snowfall
including snow squalls.


lhz361-362-221700-
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-
355 am est thu jan 22 2026

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

.today...west winds 20 to 25 knots increasing to 30 knots late in
the afternoon. heavy freezing spray. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.tonight...west winds 20 to 25 knots. gusts to 30 knots . a
chance of snow showers. heavy freezing spray. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.friday...northwest winds 20 to 25 knots. gusts to 30 knots until
late afternoon. heavy freezing spray. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.friday night...west winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. heavy freezing spray in the evening.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the south late in the
evening. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots becoming northeast 15 to
20 knots . a chance of snow early in the evening. waves 3 to
5 feet. 
.monday...north winds 15 to 20 knots backing to the west by
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 


$$

fzus63 kdtx 220855
glflh 
expires:202601221700;;315861

open lake forecast for lake huron
national weather service detroit/pontiac mi
355 am est thu jan 22 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, 29.70 inches, will exit from the
northern great lakes to quebec this morning. this will draw a
strong arctic cold front across the great lakes. expect elevated
winds/waves, freezing spray, and additional periods of snowfall
including snow squalls.


lhz363-462-221700-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
355 am est thu jan 22 2026

...heavy freezing spray warning in effect through late friday
night...
...gale warning in effect from 10 am est this morning through
late tonight...

.today...west winds 20 to 25 knots increasing to 30 knots in the
late morning and early afternoon...then decreasing to 20 to
25 knots late in the afternoon. gusts to 35 knot gales. heavy
freezing spray. waves 8 to 12 feet. waves occasionally around
15 feet. 
.tonight...west winds 20 to 25 knots increasing to 30 knots late
in the evening...then decreasing to 20 to 25 knots after
midnight. gusts to 35 knot gales. a chance of snow showers. heavy
freezing spray. waves 8 to 12 feet. waves occasionally around
15 feet. 
.friday...west winds 20 to 25 knots. gusts to 30 knots until late
afternoon. heavy freezing spray. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.friday night...west winds 15 to 20 knots. heavy freezing spray
in the evening. waves 6 to 9 feet. waves occasionally around
12 feet. 
.saturday...west winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then backing to the south late in the
evening. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
afternoon. 
.sunday...southeast winds 10 to 15 knots backing to the northeast
early in the evening...then becoming north 15 to 20 knots by
midnight. a chance of snow. waves 2 to 4 feet building to 3 to
5 feet. 
.monday...northwest winds 15 to 20 knots backing to the west
early in the evening...then becoming southwest 20 to 25 knots by
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 220910
glflm 
expires:202601221615;;317593

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
310 am cst thu jan 22 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...

low pressure around 29.6 inches will move into quebec today, with
gusty west winds lingering over lake michigan. gale force gusts 
are expected over the southern two thirds of lake michigan into 
the middle morning hours, where a gale warning is in effect. a 
period of west to northwest gales are expected tonight into middle
morning on friday over the southern two thirds of the lake, and a
gale warning is in effect for this period as well.

gusty northwest winds will gradually diminish friday afternoon 
and night, as strong high pressure around 31.0 inches over the 
northern plains expands into the upper midwest. 

the gusty winds, arctic air and elevated wave heights will 
support periods of heavy freezing spray into friday night. a heavy
freezing spray warning is in effect for this period across all of
lake michigan.

the high will expand across the great lakes over the weekend, 
while weakening to around 30.5 inches. this should help winds
gradually weaken over lake michigan. 


lmz261-362-364-366-563-565-221615-
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-
310 am cst thu jan 22 2026

two rivers wi to manistee mi north...

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

.today...west winds to 30 kt. heavy freezing spray. isolated snow
showers this afternoon. waves 6 to 9 ft occasionally to 12 ft
building to 8 to 11 ft occasionally to 14 ft. 
.tonight...west winds to 30 kt becoming northwest. scattered snow
showers. visibility one quarter mile or less at times overnight. 
waves 8 to 12 ft occasionally to 16 ft. 
.friday...northwest winds to 30 kt. heavy freezing spray. chance
of snow showers. waves 8 to 11 ft occasionally to 14 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.friday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of snow showers in the evening. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.saturday...west winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday night...southwest winds 5 to 10 kt becoming south 10 to
15 kt. waves 1 to 3 ft. 
.sunday...northeast winds 10 to 15 kt becoming north. waves 1 to
3 ft. 
.monday...northwest winds 10 to 20 kt becoming west 15 to 25 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 220910
glflm 
expires:202601221615;;317594

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
310 am cst thu jan 22 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...

low pressure around 29.6 inches will move into quebec today, with
gusty west winds lingering over lake michigan. gale force gusts 
are expected over the southern two thirds of lake michigan into 
the middle morning hours, where a gale warning is in effect. a 
period of west to northwest gales are expected tonight into middle
morning on friday over the southern two thirds of the lake, and a
gale warning is in effect for this period as well.

gusty northwest winds will gradually diminish friday afternoon 
and night, as strong high pressure around 31.0 inches over the 
northern plains expands into the upper midwest. 

the gusty winds, arctic air and elevated wave heights will 
support periods of heavy freezing spray into friday night. a heavy
freezing spray warning is in effect for this period across all of
lake michigan.

the high will expand across the great lakes over the weekend, 
while weakening to around 30.5 inches. this should help winds
gradually weaken over lake michigan. 


lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-221615-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from two rivers to sheboygan wi 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 pentwater to manistee mi 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-
310 am cst thu jan 22 2026

two rivers wi to manistee mi south...

...gale warning in effect until 8 am cst this morning...
...heavy freezing spray warning in effect through late friday
night...
...gale warning in effect from this evening through friday
morning...

.today...west gales to 35 kt early, becoming west winds to 30 kt.
freezing spray. scattered snow showers this afternoon. waves 8 
to 11 ft occasionally to 14 ft building to 8 to 12 ft occasionally
to 16 ft. 
.tonight...west gales to 35 kt becoming northwest. heavy freezing
spray. scattered snow showers in the evening, then numerous snow
showers overnight. waves 10 to 14 ft occasionally to 18 ft. 
.friday...northwest gales to 35 kt diminishing to 15 to 25 kt. 
heavy freezing spray. chance of snow showers. waves 10 to 14 ft 
occasionally to 18 ft subsiding to 7 to 10 ft occasionally to 13 
ft. 
.friday night...northwest winds 10 to 20 kt. heavy freezing spray
in the evening. chance of snow showers. waves 5 to 8 ft
occasionally to 10 ft subsiding to 3 to 5 ft. 
.saturday...northwest winds 10 to 15 kt veering to southeast.
chance of snow showers. waves 2 to 4 ft. 
.saturday night...east winds 10 to 15 kt increasing to 10 to
20 kt. chance of snow. waves 2 to 4 ft. 
.sunday...northeast winds 10 to 20 kt becoming north. chance of
snow. waves 3 to 5 ft. 
.monday...northwest winds 15 to 25 kt becoming west. freezing
spray. waves 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 220915 cca
glfls 
expires:202601222100;;317847

open lake forecast for lake superior...corrected
national weather service marquette mi
415 am est thu jan 22 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...

a 29.6 inch low moves east through ontario and into quebec this 
morning. in the wake of the low, a 31.0 inch high pressure will be 
over saskatchewan, shifting over the dakotas friday and 
overspreading the upper midwest at around 30.7 inches saturday. 
remnant ridging of at least 30.3 inches remains over lake superior 
through sunday. a 29.8 inch trough will approach the lake on monday 
afternoon, eventually moving through monday night as the high 
pressure slides south and east, away from the area.



lsz162-222100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
415 am est thu jan 22 2026 /315 am cst thu jan 22 2026/

...heavy freezing spray warning in effect through friday
afternoon...

.early this morning...northwest winds 15 to 25 knots. heavy
freezing spray. waves 4 to 7 feet occasionally to 9 feet. 
.today...northwest winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by mid
afternoon. scattered snow showers. heavy freezing spray in the
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 7 to 10 feet occasionally to 13 feet. 
.tonight...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots by
midnight. heavy freezing spray. scattered snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 
.friday...northwest winds 15 to 25 knots. heavy freezing spray in the
morning. scattered snow showers. waves subsiding to 1 to 3 feet. 
.friday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. scattered snow showers. waves
subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. scattered snow showers. waves calm to
2 feet. 
.saturday night...west winds 5 to 15 knots. a chance of snow
showers. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 
.monday...west winds 15 to 25 knots. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 220915 cca
glfls 
expires:202601222100;;317848

open lake forecast for lake superior...corrected
national weather service marquette mi
415 am est thu jan 22 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...

a 29.6 inch low moves east through ontario and into quebec this 
morning. in the wake of the low, a 31.0 inch high pressure will be 
over saskatchewan, shifting over the dakotas friday and 
overspreading the upper midwest at around 30.7 inches saturday. 
remnant ridging of at least 30.3 inches remains over lake superior 
through sunday. a 29.8 inch trough will approach the lake on monday 
afternoon, eventually moving through monday night as the high 
pressure slides south and east, away from the area.



lsz263-222100-
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-
415 am est thu jan 22 2026

...heavy freezing spray warning in effect through friday
evening...

.early this morning...northwest winds 20 to 30 knots. heavy
freezing spray. scattered snow showers. waves 6 to 9 feet
occasionally to 11 feet. 
.today...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. heavy freezing spray. scattered snow showers in
the morning. numerous snow showers in the afternoon. waves
subsiding to 4 to 7 feet occasionally to 9 feet, then building to
9 to 12 feet occasionally to 15 feet. 
.tonight...northwest winds 20 to 30 knots. heavy freezing spray.
numerous snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray. numerous snow showers in the
morning. scattered snow showers in the afternoon. waves subsiding
to 3 to 5 feet occasionally to 7 feet. 
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. scattered snow showers. waves
subsiding to 1 to 3 feet. 
.saturday...west winds 5 to 15 knots. scattered snow showers.
waves subsiding to calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots veering west
after midnight. a chance of snow showers. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 
.monday...west winds 20 to 30 knots. heavy freezing spray. waves
building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 220915 cca
glfls 
expires:202601222100;;317849

open lake forecast for lake superior...corrected
national weather service marquette mi
415 am est thu jan 22 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...

a 29.6 inch low moves east through ontario and into quebec this 
morning. in the wake of the low, a 31.0 inch high pressure will be 
over saskatchewan, shifting over the dakotas friday and 
overspreading the upper midwest at around 30.7 inches saturday. 
remnant ridging of at least 30.3 inches remains over lake superior 
through sunday. a 29.8 inch trough will approach the lake on monday 
afternoon, eventually moving through monday night as the high 
pressure slides south and east, away from the area.



lsz264-222100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
415 am est thu jan 22 2026

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

.early this morning...northwest winds 20 to 30 knots. heavy
freezing spray. scattered snow showers. waves 5 to 8 feet
occasionally to 10 feet. 
.today...northwest winds 20 to 30 knots. heavy freezing spray.
scattered snow showers. waves building to 8 to 11 feet
occasionally to 14 feet. 
.tonight...northwest winds 20 to 30 knots. heavy freezing spray.
numerous snow showers. waves subsiding to 7 to 10 feet
occasionally to 13 feet, then building to 8 to 11 feet
occasionally to 14 feet. 
.friday...northwest winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots. heavy
freezing spray. numerous snow showers in the morning. scattered
snow showers in the afternoon. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. heavy freezing spray in the
evening. scattered snow showers. waves subsiding to 2 to 4 feet. 
.saturday...northwest winds 5 to 15 knots backing west in the
afternoon. scattered snow showers. waves subsiding to calm to
2 feet. 
.saturday night...west winds 5 to 15 knots. a chance of snow
showers. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 2 to 4 feet. 
.monday...west winds 20 to 30 knots veering northwest. heavy
freezing spray. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 220915 cca
glfls 
expires:202601222100;;317850

open lake forecast for lake superior...corrected
national weather service marquette mi
415 am est thu jan 22 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...

a 29.6 inch low moves east through ontario and into quebec this 
morning. in the wake of the low, a 31.0 inch high pressure will be 
over saskatchewan, shifting over the dakotas friday and 
overspreading the upper midwest at around 30.7 inches saturday. 
remnant ridging of at least 30.3 inches remains over lake superior 
through sunday. a 29.8 inch trough will approach the lake on monday 
afternoon, eventually moving through monday night as the high 
pressure slides south and east, away from the area.



lsz265-222100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
415 am est thu jan 22 2026

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

.early this morning...west gales to 35 knots. heavy freezing
spray. numerous snow showers. waves 4 to 8 feet occasionally to
10 feet. 
.today...northwest gales to 35 knots. heavy freezing spray.
numerous snow showers. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 5 to 8 feet occasionally
to 10 feet. 
.tonight...northwest gales to 35 knots. heavy freezing spray.
numerous snow showers. waves building to 7 to 10 feet
occasionally to 13 feet. 
.friday...northwest gales to 40 knots. heavy freezing spray.
numerous snow showers. waves subsiding to 4 to 7 feet
occasionally to 9 feet. 
.friday night...northwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. heavy freezing spray in the
evening. scattered snow showers. waves subsiding to 1 to 3 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. scattered snow showers. waves
subsiding to calm to 2 feet. 
.saturday night...southwest winds 10 to 20 knots veering west
after midnight. waves calm to 2 feet. 
.sunday...west winds 10 to 20 knots increasing to 15 to 25 knots.
waves building to 2 to 4 feet. 
.monday...west winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 220915 cca
glfls 
expires:202601222100;;317851

open lake forecast for lake superior...corrected
national weather service marquette mi
415 am est thu jan 22 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...

a 29.6 inch low moves east through ontario and into quebec this 
morning. in the wake of the low, a 31.0 inch high pressure will be 
over saskatchewan, shifting over the dakotas friday and 
overspreading the upper midwest at around 30.7 inches saturday. 
remnant ridging of at least 30.3 inches remains over lake superior 
through sunday. a 29.8 inch trough will approach the lake on monday 
afternoon, eventually moving through monday night as the high 
pressure slides south and east, away from the area.



lsz266-222100-
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-
415 am est thu jan 22 2026

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

.early this morning...northwest gales to 35 knots. heavy freezing
spray. numerous snow showers. waves 6 to 9 feet occasionally to
11 feet building to 7 to 10 feet occasionally to 13 feet. 
.today...northwest gales to 35 knots. heavy freezing spray. snow
showers. waves building to 8 to 11 feet occasionally to 14 feet. 
.tonight...northwest gales to 35 knots. heavy freezing spray.
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...northwest gales to 40 knots. heavy freezing spray. snow
showers. waves subsiding to 7 to 10 feet occasionally to 13 feet.
.friday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. heavy freezing spray. numerous
snow showers in the evening. scattered snow showers after
midnight. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...west winds 10 to 20 knots. scattered snow showers.
waves subsiding to 1 to 3 feet. 
.saturday night...southwest winds 10 to 20 knots. a chance of
snow showers. waves 1 to 3 feet. 
.sunday...west winds 10 to 20 knots becoming northwest 15 to
25 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...west winds 20 to 30 knots. heavy freezing spray. a
chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 220915 cca
glfls 
expires:202601222100;;317852

open lake forecast for lake superior...corrected
national weather service marquette mi
415 am est thu jan 22 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...

a 29.6 inch low moves east through ontario and into quebec this 
morning. in the wake of the low, a 31.0 inch high pressure will be 
over saskatchewan, shifting over the dakotas friday and 
overspreading the upper midwest at around 30.7 inches saturday. 
remnant ridging of at least 30.3 inches remains over lake superior 
through sunday. a 29.8 inch trough will approach the lake on monday 
afternoon, eventually moving through monday night as the high 
pressure slides south and east, away from the area.



lsz267-222100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
415 am est thu jan 22 2026

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

.early this morning...west gales to 35 knots. heavy freezing spray. 
snow showers. waves 6 to 9 feet occasionally to 11 feet. 
.today...west winds 20 to 30 knots becoming northwest gales to
35 knots by mid afternoon. heavy freezing spray. snow showers.
waves building to 8 to 11 feet occasionally to 14 feet. 
.tonight...northwest gales to 35 knots becoming north 20 to
30 knots late. heavy freezing spray. 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...northwest winds 20 to 30 knots. heavy freezing spray.
snow showers. waves subsiding to 7 to 10 feet occasionally to
13 feet. 
.friday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. heavy freezing spray. numerous
snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.saturday...northwest winds 10 to 20 knots backing west in the
afternoon. numerous snow showers in the morning, then scattered
snow showers in the afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...southwest winds 10 to 20 knots. a chance of
snow showers. waves 1 to 3 feet. 
.sunday...south winds 10 to 20 knots veering northwest. a chance
of snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.monday...west winds 15 to 25 knots increasing to 20 to 30 knots.
freezing spray. a chance of snow showers. waves building to 5 to
8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$