fzus61 kbuf 260903
glflo 
expires:202602261600;;273651

open lake forecast for lake ontario
national weather service buffalo ny
403 am est thu feb 26 2026

for waters beyond five nautical miles of shore on lake ontario

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 29.2 inch low will weaken as it makes its way 
northeastward across quebec province tonight and thursday, with a 
30.0 inch high sliding from the central great lakes to the new 
england coastline thursday night and friday. a 29.2 inch low is then 
expected to deepen to 28.9 inches as it moves from north of lake 
superior to northern quebec friday night and saturday, with a 30.6 
inch high settling across the great lakes saturday night and sunday.


loz062-063-261600-
lake ontario open waters from the niagara river to sodus bay-
403 am est thu feb 26 2026

.today...northwest winds 10 to 15 knots becoming west. a chance
of snow showers this morning. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.tonight...west winds 5 to 10 knots becoming south. waves 1 to
2 feet. 
.friday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday night...south winds 15 to 25 knots becoming southwest.
waves 3 to 6 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.saturday...west winds 15 to 20 knots becoming northwest. a
chance of snow showers saturday night. waves 4 to 7 feet
subsiding to 2 to 4 feet. waves occasionally around 9 feet. 
.sunday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. a chance of snow showers during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.monday...northeast winds 5 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kbuf 260903
glflo 
expires:202602261600;;273652

open lake forecast for lake ontario
national weather service buffalo ny
403 am est thu feb 26 2026

for waters beyond five nautical miles of shore on lake ontario

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 29.2 inch low will weaken as it makes its way 
northeastward across quebec province tonight and thursday, with a 
30.0 inch high sliding from the central great lakes to the new 
england coastline thursday night and friday. a 29.2 inch low is then 
expected to deepen to 28.9 inches as it moves from north of lake 
superior to northern quebec friday night and saturday, with a 30.6 
inch high settling across the great lakes saturday night and sunday.


loz064-065-261600-
lake ontario open waters from sodus bay to the saint lawrence
river-
403 am est thu feb 26 2026

.today...northwest winds 15 to 20 knots becoming west and
diminishing to 5 to 10 knots. a chance of snow showers this
morning. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tonight...west winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.friday...south winds 10 to 15 knots. waves 1 to 3 feet. 
.friday night...south winds 15 to 20 knots becoming southwest and
increasing to 30 knots. a chance of rain and snow showers
overnight. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.saturday...southwest winds 15 to 25 knots becoming northwest. a
chance of snow showers saturday night. waves 4 to 7 feet
subsiding to 2 to 4 feet. waves occasionally around 9 feet. 
.sunday...north winds 15 to 20 knots becoming northeast 10 to
15 knots. a chance of snow showers during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.monday...northeast winds 5 to 15 knots becoming south 15 to
20 knots. waves 2 feet or less building to 2 to 4 feet. 

$$

fzus61 kcle 260823
glfle 
expires:202602261530;;272667

open lake forecast for lake erie
national weather service cleveland oh
323 am est thu feb 26 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 29.90 inches will influence lake erie today before
slowly shifting east on friday. a cold front will move southeast
across the lake saturday with high pressure 30.50 inches building
southeast sunday into monday.


lez164>166-261530-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-
323 am est thu feb 26 2026

.today...west winds less than 10 knots. waves in ice free areas
1 foot or less. 
.tonight...south winds 10 knots or less becoming southwest. waves
2 feet or less. 
.friday...southwest winds 10 to 15 knots. waves 1 to 3 feet. 
.friday night...south winds 15 to 20 knots becoming southwest.
waves 2 to 4 feet. 
.saturday...west winds 5 to 15 knots becoming north 15 to
20 knots. snow likely saturday night. waves 1 to 3 feet. 
.sunday...north winds 15 to 20 knots becoming northeast. waves
1 to 3 feet. 
.monday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 1 to 3 feet. 

wave heights are for ice free areas.

$$

fzus61 kcle 260823
glfle 
expires:202602261530;;272668

open lake forecast for lake erie
national weather service cleveland oh
323 am est thu feb 26 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 29.90 inches will influence lake erie today before
slowly shifting east on friday. a cold front will move southeast
across the lake saturday with high pressure 30.50 inches building
southeast sunday into monday.


lez061-167>169-261530-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
323 am est thu feb 26 2026

.today...west winds 10 knots or less. the lake is mostly ice
covered.
.tonight...southwest winds 10 knots or less becoming south. 
.friday...south winds 10 to 15 knots becoming southwest. 
.friday night...south winds 15 to 20 knots becoming southwest. 
.saturday...west winds 15 to 20 knots becoming north 5 to
15 knots. snow likely saturday night. 
.sunday...north winds 5 to 15 knots becoming northeast. 
.monday...northeast winds 5 to 15 knots becoming southeast. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 260823
glfle 
expires:202602261530;;272666

open lake forecast for lake erie
national weather service cleveland oh
323 am est thu feb 26 2026

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
high pressure 29.90 inches will influence lake erie today before
slowly shifting east on friday. a cold front will move southeast
across the lake saturday with high pressure 30.50 inches building
southeast sunday into monday.


lez162-163-261530-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
323 am est thu feb 26 2026

.today...light and variable winds. waves in ice free areas 1 foot
or less. 
.tonight...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.friday...southwest winds 10 to 15 knots. waves 2 feet or less. 
.friday night...south winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet. 
.saturday...west winds 5 to 15 knots becoming north. snow likely
saturday night. waves 2 feet or less. 
.sunday...north winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 2 feet or less. 
.monday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 1 to 3 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 260834
glfsc 
expires:202602261645;;272779

lake st clair forecast
national weather service detroit/pontiac mi
334 am est thu feb 26 2026

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

.synopsis...high pressure, 29.90 inches, builds in tonight through
thursday leading to drier and calmer marine conditions. strong
northern ontario low pressure, 29.00 inches, sends an arctic cold
front through the central great lakes friday night bringing the
next chances to see northwest gales. a gale watch is in effect
for northern lake huron as a result.


lcz460-261645-
lake st clair-
334 am est thu feb 26 2026

.today...light and variable winds becoming southwest 5 to 10 knots
in the afternoon. sunny.
.tonight...south winds 5 to 10 knots. mostly clear.
.friday...southwest winds 10 to 15 knots increasing to 15 to 20
knots in the late morning and afternoon. mostly sunny.
.friday night...southwest winds 15 to 20 knots becoming west 10 to
15 knots after midnight. partly cloudy.
.saturday...northwest winds 10 to 15 knots diminishing to 5 to 10
knots in the afternoon...then becoming north 10 to 15 knots in the
evening. partly sunny in the morning becoming mostly cloudy. a
chance of light snow showers in the evening.
.sunday...northeast winds 10 to 15 knots. partly cloudy.
.monday...east winds 10 to 15 knots. partly cloudy.

waves omitted due to ice coverage.

$$

fzus63 kdtx 260834
glflh 
expires:202602261645;;272775

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am est thu feb 26 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...high pressure, 29.90 inches, builds in tonight through
thursday leading to drier and calmer marine conditions. strong
northern ontario low pressure, 29.00 inches, sends an arctic cold
front through the central great lakes friday night bringing the
next chances to see northwest gales. a gale watch is in effect
for northern lake huron as a result.


lhz361-362-261645-
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-
334 am est thu feb 26 2026

...gale watch in effect from friday evening through saturday
morning...

.today...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. 
.tonight...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 10 to 15 knots becoming south 15 to
20 knots in the late morning and afternoon. waves 4 to 6 feet
building to 6 to 9 feet early in the afternoon. waves
occasionally around 12 feet. 
.friday night...southwest winds 20 to 25 knots becoming west to
30 knots after midnight. gusts to 35 knot gales. freezing spray
after midnight. waves 8 to 12 feet building to 10 to 14 feet
after midnight. waves occasionally around 18 feet. 
.saturday...west winds to 30 knots with gusts to 35 knot gales
becoming northwest 15 to 20 knots. freezing spray. waves 10 to
14 feet subsiding to 5 to 7 feet late in the afternoon. waves
occasionally around 18 feet. 
.sunday...north winds 10 to 15 knots becoming northwest 5 to
10 knots early in the evening...then becoming west 10 to 15 knots
by midnight. waves 4 to 6 feet subsiding to 1 to 3 feet . waves
occasionally around 8 feet. 
.monday...southwest winds 10 to 15 knots becoming south 20 to
25 knots. waves 2 to 4 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 260834
glflh 
expires:202602261645;;272776

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am est thu feb 26 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...high pressure, 29.90 inches, builds in tonight through
thursday leading to drier and calmer marine conditions. strong
northern ontario low pressure, 29.00 inches, sends an arctic cold
front through the central great lakes friday night bringing the
next chances to see northwest gales. a gale watch is in effect
for northern lake huron as a result.


lhz363-261645-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
334 am est thu feb 26 2026

.today...west winds 5 to 10 knots becoming southwest 10 to
15 knots in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon. 
.tonight...southwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet after midnight. 
.friday...southwest winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots in the late morning and
afternoon. waves 4 to 6 feet. waves occasionally around 8 feet. 
.friday night...southwest winds 20 to 25 knots with gusts to
around 30 knots becoming west 15 to 20 knots after midnight.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then increasing to 15 to 20 knots
late in the afternoon. freezing spray in the morning. freezing
spray late in the evening. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.sunday...northwest winds 15 to 20 knots. waves 4 to 6 feet
subsiding to 1 to 3 feet . waves occasionally around 8 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to 20 knots
by midnight. waves 2 to 4 feet building to 4 to 6 feet by
midnight. waves occasionally around 8 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 260834
glflh 
expires:202602261645;;272777

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 am est thu feb 26 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...high pressure, 29.90 inches, builds in tonight through
thursday leading to drier and calmer marine conditions. strong
northern ontario low pressure, 29.00 inches, sends an arctic cold
front through the central great lakes friday night bringing the
next chances to see northwest gales. a gale watch is in effect
for northern lake huron as a result.


lhz462>464-261645-
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-
334 am est thu feb 26 2026

.today...southwest winds 5 to 10 knots. waves 2 feet or less. 
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and overnight. waves 1 to 3 feet. 
.friday...southwest winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and afternoon. waves 3 to 5 feet. 
.friday night...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots by midnight...then
veering to the west after midnight. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming north 15 to 20 knots
late in the evening. a chance of snow showers late in the
afternoon. waves 3 to 5 feet. 
.sunday...northwest winds 15 to 20 knots becoming 5 to 10 knots
early in the evening...then veering to the northeast by midnight.
waves 3 to 5 feet subsiding to 1 to 3 feet by midnight. 
.monday...east winds 5 to 10 knots becoming southeast 10 to
15 knots by midnight. waves 1 to 3 feet building to 2 to 4 feet
by midnight. 

wave heights are for ice free areas.

$$

fzus63 kmkx 260853
glflm 
expires:202602261615;;273295

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
253 am cst thu feb 26 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...

high pressure of 30.0 inches over the upper great lakes will
depart today as a weak clipper of 29.7 inches tracks toward lake 
superior. south to southwest winds will then increase later 
this afternoon 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 
later friday into friday night behind the front. breezy northerly 
winds will continue saturday between departing low pressure and a 
strong high approaching from the northwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-261615-
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-
253 am cst thu feb 26 2026

sheboygan wi to pentwater mi south...

.today...west winds 5 to 10 kt becoming southwest late this
morning, then becoming 10 to 20 kt early this afternoon becoming
southwest 10 to 20 kt late. waves 2 to 4 ft. 
.tonight...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...southwest winds 10 to 20 kt increasing to 30 kt. waves
3 to 5 ft building to 5 to 8 ft occasionally to 10 ft. 
.friday night...west winds to 30 kt becoming northwest. waves
5 to 8 ft occasionally to 10 ft. 
.saturday...north winds 10 to 20 kt. chance of snow in the
afternoon. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.saturday night...north winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...north winds 10 to 20 kt becoming northeast 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.monday...east winds 10 to 20 kt becoming southeast. waves 3 to
5 ft.  

$$

fzus63 kmkx 260853
glflm 
expires:202602261615;;273294

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
253 am cst thu feb 26 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...

high pressure of 30.0 inches over the upper great lakes will
depart today as a weak clipper of 29.7 inches tracks toward lake 
superior. south to southwest winds will then increase later 
this afternoon 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 
later friday into friday night behind the front. breezy northerly 
winds will continue saturday between departing low pressure and a 
strong high approaching from the northwest.


lmz261-362-364-366-563-565-567-868-261615-
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-
253 am cst thu feb 26 2026

sheboygan wi to pentwater mi north...

.today...west winds 5 to 10 kt becoming southwest 10 to 20 kt
from late morning on. chance of snow. waves 1 to 2 ft building to
3 to 5 ft. 
.tonight...southwest winds 10 to 20 kt. chance of snow in the
evening. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft building to 5 to 8 ft occasionally to 10 ft. 
.friday night...west gales to 35 kt becoming northwest. freezing
spray overnight. waves 6 to 9 ft occasionally to 12 ft. 
.saturday...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.saturday night...northwest winds 10 to 20 kt becoming north.
waves 3 to 5 ft. 
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 3 to 5 ft subsiding to 1 to 3 ft. 
.monday...south winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 260901
glfls 
expires:202602262100;;273549

open lake forecast for lake superior
national weather service marquette mi
400 am est thu feb 26 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 29.7 inch low will move across lake superior today. a strong 
clipper low averaging 29.1 inches moves across northern ontario 
friday and friday night, sending a 29.4 inch trough across the lake. 
high pressure builds over the lake this weekend, strengthening to 
30.6 inches by sunday.



lsz162-262100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est thu feb 26 2026 /300 am cst thu feb 26 2026/

...gale watch in effect from friday afternoon through late friday
night...

.early this morning...southwest winds 5 to 15 knots. a chance of
snow showers. waves calm to 2 feet. 
.today...southwest winds 5 to 15 knots increasing to 10 to
20 knots by late morning, then diminishing to 5 to 15 knots by
mid afternoon. snow showers likely in the morning, then a slight
chance of snow in the afternoon. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. a slight chance of snow showers in the evening.
waves calm to 2 feet. 
.friday...southwest winds 15 to 25 knots increasing to gales to
35 knots by late morning, then becoming west gales to 45 knots by
mid afternoon. waves building to 7 to 10 feet occasionally to
13 feet. 
.friday night...northwest gales to 45 knots diminishing to 20 to
30 knots after midnight. heavy freezing spray. waves subsiding to
2 to 4 feet. 
.saturday...northwest winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots backing south. waves calm to
2 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. waves building to 5 to 8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 260901
glfls 
expires:202602262100;;273550

open lake forecast for lake superior
national weather service marquette mi
400 am est thu feb 26 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 29.7 inch low will move across lake superior today. a strong 
clipper low averaging 29.1 inches moves across northern ontario 
friday and friday night, sending a 29.4 inch trough across the lake. 
high pressure builds over the lake this weekend, strengthening to 
30.6 inches by sunday.



lsz263-262100-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 am est thu feb 26 2026

...gale watch in effect from friday afternoon through late friday
night...

.early this morning...southwest winds 5 to 15 knots. a slight
chance of snow showers. waves calm to 2 feet. 
.today...southwest winds 5 to 15 knots. snow showers likely in
the morning, then a chance of snow in the afternoon. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. a slight chance of snow showers. waves building to
1 to 3 feet. 
.friday...southwest winds 15 to 25 knots increasing to gales to
35 knots by late morning, then becoming west gales to 45 knots by
mid afternoon. waves building to 10 to 14 feet occasionally to
18 feet. 
.friday night...northwest gales to 45 knots. heavy freezing
spray. waves building to 11 to 15 feet occasionally to 19 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 
.saturday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots veering north
after midnight. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.sunday...west winds 5 to 15 knots backing south. waves building
to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. waves building to 7 to 10 feet occasionally to 13 feet.

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 260901
glfls 
expires:202602262100;;273551

open lake forecast for lake superior
national weather service marquette mi
400 am est thu feb 26 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 29.7 inch low will move across lake superior today. a strong 
clipper low averaging 29.1 inches moves across northern ontario 
friday and friday night, sending a 29.4 inch trough across the lake. 
high pressure builds over the lake this weekend, strengthening to 
30.6 inches by sunday.



lsz264-262100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est thu feb 26 2026

.early this morning...west winds 5 to 15 knots. a slight chance
of snow showers. waves calm to 2 feet. 
.today...south winds 5 to 15 knots veering southwest by mid
afternoon. a chance of snow showers. waves calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots increasing to 10 to
20 knots late. a slight chance of snow showers. waves building to
1 to 3 feet. 
.friday...southwest winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by late morning,
then becoming west gales to 45 knots by mid afternoon. waves
building to 10 to 14 feet occasionally to 18 feet. 
.friday night...northwest storm force winds to 55 knots
diminishing to gales to 45 knots after midnight. heavy freezing
spray. waves building to 12 to 17 feet occasionally to 21 feet,
then subsiding to 8 to 11 feet occasionally to 14 feet. 
.saturday...northwest gales to 35 knots diminishing to 10 to
20 knots in the afternoon. heavy freezing spray in the morning.
waves subsiding to 2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots. waves subsiding
to 1 to 3 feet. 
.sunday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. freezing spray. waves building to 8 to 11 feet
occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 260901
glfls 
expires:202602262100;;273552

open lake forecast for lake superior
national weather service marquette mi
400 am est thu feb 26 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 29.7 inch low will move across lake superior today. a strong 
clipper low averaging 29.1 inches moves across northern ontario 
friday and friday night, sending a 29.4 inch trough across the lake. 
high pressure builds over the lake this weekend, strengthening to 
30.6 inches by sunday.



lsz265-262100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est thu feb 26 2026

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...southwest winds 10 to 20 knots backing south. snow
showers likely in the morning, then a chance of snow in the
afternoon. waves calm to 2 feet. 
.tonight...southwest winds 10 to 20 knots. a slight chance of
snow showers in the evening. waves calm to 2 feet. 
.friday...southwest winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by late morning,
then becoming west gales to 45 knots by mid afternoon. waves
building to 6 to 9 feet occasionally to 11 feet. 
.friday night...west storm force winds to 55 knots becoming
northwest gales to 45 knots after midnight. heavy freezing spray.
waves building to 10 to 14 feet occasionally to 18 feet, then
subsiding to 7 to 10 feet occasionally to 13 feet. 
.saturday...northwest gales to 35 knots diminishing to 15 to
25 knots in the afternoon. heavy freezing spray in the morning.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday night...northwest winds 15 to 25 knots. waves subsiding
to 1 to 3 feet. 
.sunday...west winds 10 to 20 knots backing southwest. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.monday...south winds 15 to 25 knots becoming southwest 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 260901
glfls 
expires:202602262100;;273553

open lake forecast for lake superior
national weather service marquette mi
400 am est thu feb 26 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 29.7 inch low will move across lake superior today. a strong 
clipper low averaging 29.1 inches moves across northern ontario 
friday and friday night, sending a 29.4 inch trough across the lake. 
high pressure builds over the lake this weekend, strengthening to 
30.6 inches by sunday.



lsz266-262100-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 am est thu feb 26 2026

.early this morning...west winds 10 to 20 knots. a slight chance
of snow showers. waves 3 to 5 feet occasionally to 7 feet. 
.today...west winds 5 to 15 knots becoming south 10 to 20 knots.
a chance of snow showers. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.tonight...southwest winds 10 to 20 knots increasing to 15 to
25 knots late. a slight chance of snow showers. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.friday...south winds 20 to 30 knots increasing to 30 knots with
a few gale force gusts to 35 knots possible by late morning, then
becoming southwest storm force winds to 55 knots by mid
afternoon. waves building to 10 to 14 feet occasionally to
18 feet. 
.friday night...west storm force winds to 55 knots veering
northwest after midnight. heavy freezing spray. waves building to
17 to 22 feet occasionally to 28 feet, then subsiding to 15 to
20 feet occasionally to 25 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. heavy freezing spray. waves subsiding
to 5 to 8 feet occasionally to 10 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. heavy freezing spray. a chance of
snow showers. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.sunday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.monday...south winds 15 to 25 knots becoming southwest gales to
35 knots. freezing spray. waves building to 8 to 11 feet
occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 260901
glfls 
expires:202602262100;;273554

open lake forecast for lake superior
national weather service marquette mi
400 am est thu feb 26 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 29.7 inch low will move across lake superior today. a strong 
clipper low averaging 29.1 inches moves across northern ontario 
friday and friday night, sending a 29.4 inch trough across the lake. 
high pressure builds over the lake this weekend, strengthening to 
30.6 inches by sunday.



lsz267-262100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est thu feb 26 2026

.early this morning...north winds 5 to 15 knots. a chance of snow
showers. waves 3 to 5 feet occasionally to 7 feet. 
.today...southeast winds 5 to 15 knots becoming southwest 10 to
20 knots by late morning, then backing south by mid afternoon. a
chance of snow showers. waves subsiding to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots veering southwest by
midnight. a slight chance of snow showers. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.friday...south winds 15 to 25 knots increasing to 20 to 30 knots
by late morning, then becoming southwest gales to 45 knots by mid
afternoon. a slight chance of rain and snow showers in the
afternoon. waves building to 7 to 10 feet occasionally to
13 feet. 
.friday night...west gales to 45 knots veering northwest after
midnight. a slight chance of rain and snow showers in the
evening. heavy freezing spray. waves building to 17 to 22 feet
occasionally to 28 feet, then subsiding to 15 to 20 feet
occasionally to 25 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. heavy freezing spray. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday night...northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. heavy freezing spray. a chance of
snow showers. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.sunday...west winds 5 to 15 knots backing south. waves subsiding
to 1 to 3 feet, then building to 3 to 5 feet occasionally to
7 feet. 
.monday...south winds 10 to 20 knots increasing to 20 to
30 knots. freezing spray. waves subsiding to 2 to 4 feet, then
building to 7 to 10 feet occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$