fzus63 kdtx 250252
glflh 
expires:202602251100;;206133

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 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...westerly flow and lake effect snow showers persist
over the great lakes today in the wake of a departing clipper,
29.30 inches, and its attendant cold front. high pressure, 29.90
inches, then builds in tonight through thursday leading to drier
and calmer marine conditions.


lhz361-362-251100-
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-
952 pm est tue feb 24 2026

.rest of tonight...south winds 20 to 25 knots becoming west 15 to
20 knots after midnight. snow. 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 in the late evening and overnight.
.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 250252
glflh 
expires:202602251100;;206134

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 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...westerly flow and lake effect snow showers persist
over the great lakes today in the wake of a departing clipper,
29.30 inches, and its attendant cold front. high pressure, 29.90
inches, then builds in tonight through thursday leading to drier
and calmer marine conditions.


lhz363-251100-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
952 pm est tue feb 24 2026

.rest of tonight...south winds 20 to 25 knots becoming southwest
15 to 20 knots after midnight. snow. 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 250252
glflh 
expires:202602251100;;206135

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 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...westerly flow and lake effect snow showers persist
over the great lakes today in the wake of a departing clipper,
29.30 inches, and its attendant cold front. high pressure, 29.90
inches, then builds in tonight through thursday leading to drier
and calmer marine conditions.


lhz462>464-251100-
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-
952 pm est tue feb 24 2026

.rest of 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. snow. 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 250304
glflm 
expires:202602251100;;206801

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 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...

northwest winds will develop tonight in the wake of a 29.5 inch
low pressure trough and become gusty wednesday morning. lighter 
winds are expected wednesday night into thursday as high pressure 
of 30.0 inches moves into the upper great lakes. south to 
southwest winds will then pick up later thursday into friday 
as low pressure of 29.3 inches over saskatchewan deepens to 29.1
inches over ontario. the associated cold front will cross lake
michigan friday afternoon and evening. a few gales will be 
possible across northern portions of the lake.


lmz261-362-364-366-563-565-567-868-251100-
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-
904 pm cst tue feb 24 2026

sheboygan wi to pentwater mi north...

.rest of tonight...west winds 15 to 25 kt becoming northwest to
30 kt. freezing spray overnight. waves 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
8 to 11 ft occasionally to 14 ft. 
.saturday...northwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 250304
glflm 
expires:202602251100;;206802

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 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...

northwest winds will develop tonight in the wake of a 29.5 inch
low pressure trough and become gusty wednesday morning. lighter 
winds are expected wednesday night into thursday as high pressure 
of 30.0 inches moves into the upper great lakes. south to 
southwest winds will then pick up later thursday into friday 
as low pressure of 29.3 inches over saskatchewan deepens to 29.1
inches over ontario. the associated cold front will cross lake
michigan friday afternoon and evening. a few gales will be 
possible across northern portions of the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-251100-
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-
904 pm cst tue feb 24 2026

sheboygan wi to pentwater mi south...

.rest of tonight...west winds 15 to 25 kt becoming northwest to
30 kt. waves 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 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmqt 250301
glfls 
expires:202602250900;;206578

open lake forecast for lake superior
national weather service marquette mi
1000 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 northeastern ontario moves to quebec for 
wednesday afternoon with weak ridging building over lake superior at 
29.9 inches wednesday night into thursday. a strong clipper low 
averaging 29.2 inches moves across ontario friday and friday night, 
sending a 29.5 inch trough across the lake. a 30.7 inch high 
builds over the lake by sunday.



lsz162-250900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est tue feb 24 2026 /900 pm cst tue feb 24 2026/

...heavy freezing spray warning in effect until 7 am est /6 am
cst/ wednesday...

.rest of tonight...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 20 to 30 knots
late. waves 4 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 7 to 10 feet
occasionally to 13 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 250301
glfls 
expires:202602250900;;206579

open lake forecast for lake superior
national weather service marquette mi
1000 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 northeastern ontario moves to quebec for 
wednesday afternoon with weak ridging building over lake superior at 
29.9 inches wednesday night into thursday. a strong clipper low 
averaging 29.2 inches moves across ontario friday and friday night, 
sending a 29.5 inch trough across the lake. a 30.7 inch high 
builds 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-
1000 pm est tue feb 24 2026

...heavy freezing spray warning in effect until 10 am est
wednesday...

.rest of 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 and a slight chance of. a slight
chance of. waves 5 to 9 feet occasionally to 11 feet, then
subsiding to 5 to 8 feet occasionally to 10 feet. 
.wednesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray in the morning. a slight chance
of. a slight chance of. 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 9 to 12 feet
occasionally to 15 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.

$$

fzus63 kmqt 250301
glfls 
expires:202602250900;;206580

open lake forecast for lake superior
national weather service marquette mi
1000 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 northeastern ontario moves to quebec for 
wednesday afternoon with weak ridging building over lake superior at 
29.9 inches wednesday night into thursday. a strong clipper low 
averaging 29.2 inches moves across ontario friday and friday night, 
sending a 29.5 inch trough across the lake. a 30.7 inch high 
builds 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-
1000 pm est tue feb 24 2026

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

.rest of tonight...northwest winds 20 to 30 knots. heavy freezing
spray and a slight chance of. a slight chance of. waves 5 to
8 feet occasionally to 10 feet 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. a slight chance of. 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 250301
glfls 
expires:202602250900;;206581

open lake forecast for lake superior
national weather service marquette mi
1000 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 northeastern ontario moves to quebec for 
wednesday afternoon with weak ridging building over lake superior at 
29.9 inches wednesday night into thursday. a strong clipper low 
averaging 29.2 inches moves across ontario friday and friday night, 
sending a 29.5 inch trough across the lake. a 30.7 inch high 
builds over the lake by sunday.



lsz265-250900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est tue feb 24 2026

...gale warning in effect through wednesday afternoon...
...heavy freezing spray warning in effect through wednesday
afternoon...

.rest of tonight...northwest winds 20 to 30 knots increasing to
gales to 35 knots by midnight. a chance of snow showers. heavy
freezing spray after midnight. waves 3 to 5 feet occasionally to
7 feet 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 4 to 7 feet
occasionally to 9 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 250301
glfls 
expires:202602250900;;206582

open lake forecast for lake superior
national weather service marquette mi
1000 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 northeastern ontario moves to quebec for 
wednesday afternoon with weak ridging building over lake superior at 
29.9 inches wednesday night into thursday. a strong clipper low 
averaging 29.2 inches moves across ontario friday and friday night, 
sending a 29.5 inch trough across the lake. a 30.7 inch high 
builds 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-
1000 pm est tue feb 24 2026

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

.rest of tonight...northwest gales to 40 knots. freezing spray. a
chance of snow showers. waves 5 to 8 feet occasionally to 10 feet
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 building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 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 250301
glfls 
expires:202602250900;;206583

open lake forecast for lake superior
national weather service marquette mi
1000 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 northeastern ontario moves to quebec for 
wednesday afternoon with weak ridging building over lake superior at 
29.9 inches wednesday night into thursday. a strong clipper low 
averaging 29.2 inches moves across ontario friday and friday night, 
sending a 29.5 inch trough across the lake. a 30.7 inch high 
builds 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-
1000 pm est tue feb 24 2026

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

.rest of 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 3 to 6 feet occasionally to 8 feet
building to 9 to 12 feet occasionally to 15 feet. 
.wednesday...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible. 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. a slight chance of snow showers in the evening.
waves 2 to 4 feet. 
.friday...south winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. a chance of. waves building to 6 to
9 feet occasionally to 11 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.

$$