fzus63 kdtx 242050
glflh 
expires:202602250500;;193901

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 pm est tue feb 24 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...a clipper system, 29.20 inches, tracks across ontario
this evening leading to a brief burst of snow across the great
lakes. southwest winds gusting to 30 knots are also expected. a
cold front tracks across the region wednesday morning leading to
westerly flow.


lhz361-362-250500-
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-
350 pm est tue feb 24 2026

.tonight...south winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots after midnight. snow in the
evening. snow may be heavy at times in the evening. waves 6 to
9 feet. waves occasionally around 12 feet. 
.wednesday...west winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and afternoon. freezing spray in the
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday night...west winds 20 to 25 knots decreasing to 10 to
15 knots. freezing spray in the evening. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.thursday...west winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and afternoon. waves 3 to 5 feet
subsiding to 1 to 3 feet in the late morning and afternoon. 
.thursday night...southwest winds 10 to 15 knots. waves 1 to
3 feet building to 2 to 4 feet after midnight. 
.friday...southwest winds 15 to 20 knots increasing to 30 knots
with gusts to 35 knot gales. waves 4 to 6 feet building to 10 to
14 feet late in the afternoon. waves occasionally around 18 feet.
.saturday...west at 35 knot gales becoming northwest 20 to
25 knots with gusts to 35 knot gales. freezing spray. waves 12 to
16 feet subsiding to 6 to 9 feet . waves occasionally around
20 feet. a gale warning may be needed. 
.sunday...northwest winds 15 to 20 knots. heavy freezing spray
early in the morning. waves 5 to 7 feet subsiding to 2 to 4 feet
. waves occasionally around 10 feet. 


$$

fzus63 kdtx 242050
glflh 
expires:202602250500;;193902

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 pm est tue feb 24 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...a clipper system, 29.20 inches, tracks across ontario
this evening leading to a brief burst of snow across the great
lakes. southwest winds gusting to 30 knots are also expected. a
cold front tracks across the region wednesday morning leading to
westerly flow.


lhz363-250500-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
350 pm est tue feb 24 2026

.tonight...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots after midnight. snow
in the evening. snow may be heavy at times in the evening. waves
5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...west winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday night...west winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. freezing spray in the evening. waves
5 to 7 feet. waves occasionally around 10 feet. 
.thursday...west winds 5 to 10 knots backing to the southwest
early in the afternoon. waves 3 to 5 feet subsiding to 1 to
3 feet in the late morning and afternoon. 
.thursday night...southwest winds 10 to 15 knots. waves 1 to
3 feet. 
.friday...southwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 35 knot gales late in the afternoon. waves
4 to 6 feet building to 6 to 9 feet late in the afternoon. waves
occasionally around 12 feet. 
.saturday...west winds 20 to 25 knots becoming northwest 15 to
20 knots until early evening...then increasing to 20 to 25 knots
by midnight. heavy freezing spray by midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 
.sunday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. heavy freezing spray until afternoon. waves 6 to 9 feet
subsiding to 2 to 4 feet . waves occasionally around 12 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 242050
glflh 
expires:202602250500;;193903

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 pm est tue feb 24 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...a clipper system, 29.20 inches, tracks across ontario
this evening leading to a brief burst of snow across the great
lakes. southwest winds gusting to 30 knots are also expected. a
cold front tracks across the region wednesday morning leading to
westerly flow.


lhz462>464-250500-
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-
350 pm est tue feb 24 2026

.tonight...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots after midnight...then
becoming west 10 to 15 knots early in the morning. a chance of
snow in the evening. waves 6 to 9 feet subsiding to 3 to 5 feet
early in the morning. waves occasionally around 12 feet. 
.wednesday...west winds 15 to 20 knots. a chance of snow. waves
3 to 5 feet. 
.wednesday night...west winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 3 to 5 feet. 
.thursday...west winds 5 to 10 knots. waves 1 to 3 feet. 
.thursday night...south winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.friday...south winds 10 to 15 knots increasing to 20 to 25 knots
with gusts to around 30 knots. waves 3 to 5 feet building to 6 to
9 feet late in the afternoon. waves occasionally around 12 feet. 
.saturday...west winds 15 to 20 knots becoming northwest 10 to
15 knots until early evening...then becoming north 15 to 20 knots
by midnight. a chance of snow . heavy freezing spray by midnight.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.sunday...north winds 15 to 20 knots decreasing to 10 to
15 knots. heavy freezing spray until afternoon. waves 4 to
6 feet. waves occasionally around 8 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 250011 aaa
glflm 
expires:202602250415;;202421

open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
611 pm cst tue feb 24 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...

gusty south winds will become west to northwest behind a passing 
cold front later this evening and overnight, with gusty northwest
winds on wednesday. lighter winds are expected wednesday night 
into thursday, as high pressure of 30.0 inches moves into the 
area. south to southwest winds will then pick up later thursday 
into friday, ahead of an approaching low pressure system. a few 
gales will be possible across northern portions of the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-250415-
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-
611 pm cst tue feb 24 2026

sheboygan wi to pentwater mi south...

.tonight...west winds to 30 kt becoming northwest. snow showers
and numerous rain showers this evening. waves 8 to 11 ft
occasionally to 14 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.wednesday...northwest winds to 30 kt diminishing to 10 to 20 kt.
freezing spray in the morning. waves 8 to 11 ft occasionally to
14 ft subsiding to 6 to 9 ft occasionally to 12 ft. 
.wednesday night...northwest winds 10 to 20 kt diminishing to
5 to 10 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft. 
.thursday...southwest winds 10 to 15 kt becoming south. waves
1 to 3 ft. 
.thursday night...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 6 to 9 ft occasionally
to 12 ft. 
.friday night...southwest winds to 30 kt becoming northwest.
waves 7 to 10 ft occasionally to 13 ft. 
.saturday...northwest winds 15 to 25 kt becoming north 10 to
20 kt. chance of snow. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northeast winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.  

$$

fzus63 kmkx 250011 aaa
glflm 
expires:202602250415;;202420

open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
611 pm cst tue feb 24 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...

gusty south winds will become west to northwest behind a passing 
cold front later this evening and overnight, with gusty northwest
winds on wednesday. lighter winds are expected wednesday night 
into thursday, as high pressure of 30.0 inches moves into the 
area. south to southwest winds will then pick up later thursday 
into friday, ahead of an approaching low pressure system. a few 
gales will be possible across northern portions of the lake.


lmz261-362-364-366-563-565-567-868-250415-
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-
611 pm cst tue feb 24 2026

sheboygan wi to pentwater mi north...

.tonight...west winds to 30 kt becoming northwest. scattered snow
showers this evening. freezing spray overnight. waves 8 to 12 ft
occasionally to 16 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.wednesday...northwest winds to 30 kt diminishing to 15 to 25 kt.
freezing spray in the morning. waves 7 to 10 ft occasionally to
13 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.wednesday night...northwest winds 10 to 20 kt becoming west 5 to
10 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.thursday night...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.friday...southwest winds to 30 kt increasing to gales to 35 kt.
waves 4 to 6 ft occasionally to 8 ft building to 6 to 9 ft
occasionally to 12 ft. 
.friday night...west gales to 35 kt becoming northwest. waves
7 to 10 ft occasionally to 13 ft. 
.saturday...northwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmqt 242102
glfls 
expires:202602250900;;194368

open lake forecast for lake superior
national weather service marquette mi
402 pm est tue feb 24 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 29.3 inch low over northern lake superior will move to eastern 
ontario by wednesday afternoon with weak ridging building over lake 
superior at 29.9 inches wednesday night into thursday. a strong 
clipper averaging 29.2 inches moves across ontario friday night into 
saturday, sending a strong cold front across the lake with a 30.7 
inch high building over the lake by sunday.



lsz264-250900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
402 pm est tue feb 24 2026

...heavy freezing spray warning in effect from 1 am est wednesday
through wednesday afternoon...

.late this afternoon...west winds 15 to 25 knots. freezing spray.
a slight chance of snow showers. waves 5 to 8 feet occasionally
to 10 feet. 
.tonight...northwest winds 20 to 30 knots. heavy freezing spray.
a slight chance of snow showers. waves building to 7 to 10 feet
occasionally to 13 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. heavy freezing spray in the morning. a
slight chance of snow showers. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots by midnight, then backing west late. waves
subsiding to 1 to 3 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of snow showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 2 to 4 feet. 
.friday...southwest winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. waves building to 9 to 12 feet
occasionally to 15 feet. 
.friday night...west gales to 45 knots veering northwest after
midnight. heavy freezing spray. waves building to 15 to 20 feet
occasionally to 25 feet, then subsiding to 10 to 14 feet
occasionally to 18 feet. 
.saturday...northwest gales to 40 knots diminishing to 15 to
25 knots. heavy freezing spray. 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 becoming southwest 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 242102
glfls 
expires:202602250900;;194369

open lake forecast for lake superior
national weather service marquette mi
402 pm est tue feb 24 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 29.3 inch low over northern lake superior will move to eastern 
ontario by wednesday afternoon with weak ridging building over lake 
superior at 29.9 inches wednesday night into thursday. a strong 
clipper averaging 29.2 inches moves across ontario friday night into 
saturday, sending a strong cold front across the lake with a 30.7 
inch high building over the lake by sunday.



lsz265-250900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
402 pm est tue feb 24 2026

...gale warning in effect from 1 am est wednesday through
wednesday afternoon...
...heavy freezing spray warning in effect from 1 am est wednesday
through wednesday afternoon...

.late this afternoon...west winds 20 to 30 knots. a chance of
snow showers. waves 2 to 4 feet. 
.tonight...west winds 20 to 30 knots becoming northwest gales to
35 knots by midnight. a chance of snow showers. heavy freezing
spray after midnight. waves building to 4 to 7 feet occasionally
to 9 feet. 
.wednesday...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. heavy freezing spray. a slight 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. 
.wednesday night...west winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 10 to 20 knots. a slight chance of
snow showers. waves calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. waves building to 5 to 8 feet
occasionally to 10 feet. 
.friday night...west gales to 45 knots veering northwest after
midnight. heavy freezing spray. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 9 to 12 feet
occasionally to 15 feet. 
.saturday...northwest gales to 40 knots diminishing to 15 to
25 knots. heavy freezing spray. 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 becoming south 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 242102
glfls 
expires:202602250900;;194370

open lake forecast for lake superior
national weather service marquette mi
402 pm est tue feb 24 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 29.3 inch low over northern lake superior will move to eastern 
ontario by wednesday afternoon with weak ridging building over lake 
superior at 29.9 inches wednesday night into thursday. a strong 
clipper averaging 29.2 inches moves across ontario friday night into 
saturday, sending a strong cold front across the lake with a 30.7 
inch high building over the lake by sunday.



lsz266-250900-
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-
402 pm est tue feb 24 2026

...gale warning in effect from 1 am est wednesday through
wednesday afternoon...
...heavy freezing spray warning in effect from 4 am est wednesday
through late wednesday night...

.late this afternoon...southwest winds 20 to 30 knots. freezing
spray. snow showers likely. waves 6 to 10 feet occasionally to
13 feet. 
.tonight...west winds 20 to 30 knots becoming northwest gales to
40 knots by midnight. freezing spray. a chance of snow showers.
waves subsiding to 5 to 8 feet occasionally to 10 feet, then
building to 9 to 12 feet occasionally to 15 feet. 
.wednesday...northwest gales to 40 knots. heavy freezing spray. a
chance of snow showers. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then backing west late. heavy
freezing spray in the evening. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of snow showers. waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.thursday night...southwest winds 15 to 25 knots. waves 2 to
4 feet. 
.friday...south winds 20 to 30 knots becoming southwest gales to
40 knots in the afternoon. waves building to 8 to 11 feet
occasionally to 14 feet. 
.friday night...west storm force winds to 50 knots veering
northwest after midnight. heavy freezing spray. waves building to
20 to 25 feet occasionally to 31 feet, then subsiding to 17 to
22 feet occasionally to 28 feet. 
.saturday...northwest gales to 40 knots diminishing to 20 to
30 knots. heavy freezing spray. waves subsiding to 4 to 7 feet
occasionally to 9 feet. 
.sunday...northwest winds 15 to 25 knots backing south. 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 242102
glfls 
expires:202602250900;;194371

open lake forecast for lake superior
national weather service marquette mi
402 pm est tue feb 24 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 29.3 inch low over northern lake superior will move to eastern 
ontario by wednesday afternoon with weak ridging building over lake 
superior at 29.9 inches wednesday night into thursday. a strong 
clipper averaging 29.2 inches moves across ontario friday night into 
saturday, sending a strong cold front across the lake with a 30.7 
inch high building over the lake by sunday.



lsz267-250900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
402 pm est tue feb 24 2026

...gale warning in effect until 7 pm est this evening...
...heavy freezing spray warning in effect until 7 pm est this
evening...
...heavy freezing spray warning in effect from 4 am est wednesday
through late wednesday night...

.late this afternoon...south gales to 35 knots. freezing spray.
snow showers. waves 5 to 9 feet occasionally to 11 feet. 
.tonight...southwest winds 15 to 25 knots becoming northwest
20 to 30 knots by midnight. a chance of snow showers. freezing
spray after midnight. waves subsiding to 3 to 6 feet occasionally
to 8 feet, then building to 9 to 12 feet occasionally to 15 feet.
.wednesday...northwest gales to 35 knots. heavy freezing spray. a
chance of snow showers. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots. heavy freezing spray in the evening. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday...south winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a chance of snow showers in the
afternoon. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.thursday night...south winds 15 to 25 knots veering southwest
after midnight. waves 2 to 4 feet. 
.friday...south winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. a chance of rain showers in the
afternoon. waves building to 7 to 10 feet occasionally to
13 feet. 
.friday night...west gales to 45 knots increasing to storm force
winds to 50 knots after midnight. heavy freezing spray after
midnight. waves building to 20 to 25 feet occasionally to
31 feet, then subsiding to 20 to 25 feet occasionally to 31 feet.
.saturday...northwest gales to 40 knots becoming north 15 to
25 knots. heavy freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday...north winds 15 to 25 knots becoming south 10 to
20 knots. 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 242102
glfls 
expires:202602250900;;194366

open lake forecast for lake superior
national weather service marquette mi
402 pm est tue feb 24 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 29.3 inch low over northern lake superior will move to eastern 
ontario by wednesday afternoon with weak ridging building over lake 
superior at 29.9 inches wednesday night into thursday. a strong 
clipper averaging 29.2 inches moves across ontario friday night into 
saturday, sending a strong cold front across the lake with a 30.7 
inch high building over the lake by sunday.



lsz162-250900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
402 pm est tue feb 24 2026 /302 pm cst tue feb 24 2026/

...heavy freezing spray warning in effect from 10 pm est /9 pm
cst/ this evening through wednesday morning...

.late this afternoon...northwest winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by midnight,
then diminishing to 20 to 30 knots late. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 5 to 15 knots backing
southwest late. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of snow showers in the
morning. waves calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves building to 1 to 3 feet. 
.friday...southwest winds 20 to 30 knots becoming west gales to
40 knots in the afternoon. waves building to 6 to 9 feet
occasionally to 11 feet. 
.friday night...west gales to 40 knots becoming northwest gales
to 35 knots after midnight. heavy freezing spray. waves building
to 8 to 11 feet occasionally to 14 feet, then subsiding to 3 to
6 feet occasionally to 8 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.sunday...north winds 5 to 15 knots veering south. waves calm to
2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 242102
glfls 
expires:202602250900;;194367

open lake forecast for lake superior
national weather service marquette mi
402 pm est tue feb 24 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 29.3 inch low over northern lake superior will move to eastern 
ontario by wednesday afternoon with weak ridging building over lake 
superior at 29.9 inches wednesday night into thursday. a strong 
clipper averaging 29.2 inches moves across ontario friday night into 
saturday, sending a strong cold front across the lake with a 30.7 
inch high building over the lake by sunday.



lsz263-250900-
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-
402 pm est tue feb 24 2026

...heavy freezing spray warning in effect from 10 pm est this
evening through wednesday morning...

.late this afternoon...west winds 20 to 30 knots. a slight chance
of snow showers. waves 4 to 7 feet occasionally to 9 feet. 
.tonight...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots late.
heavy freezing spray. a slight chance of snow showers. waves
building to 5 to 9 feet occasionally to 11 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray in the morning. a slight chance of
snow showers. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.wednesday night...northwest winds 5 to 15 knots backing west
late. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of snow showers. waves
building to 1 to 3 feet. 
.thursday night...southwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.friday...southwest winds 20 to 30 knots becoming west gales to
40 knots in the afternoon. waves building to 8 to 11 feet
occasionally to 14 feet. 
.friday night...west gales to 40 knots veering northwest after
midnight. heavy freezing spray. waves building to 11 to 15 feet
occasionally to 19 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.saturday...northwest winds 20 to 30 knots becoming north 15 to
25 knots. heavy freezing spray. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.sunday...north winds 10 to 20 knots veering south. waves
subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$