fzus63 kdtx 270248
glflh 
expires:202602271100;;314416

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm 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...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 as well as
areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.


lhz361-362-271100-
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-
948 pm est thu feb 26 2026

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

.rest of tonight...southwest winds 10 to 15 knots. waves 3 to
5 feet. 
.friday...southwest winds 10 to 15 knots becoming south 15 to
20 knots with gusts to around 30 knots in the afternoon. waves
3 to 5 feet building to 6 to 9 feet late 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. waves occasionally around
15 feet. 
.saturday...west winds to 30 knots with gusts to 35 knot gales
becoming northwest 15 to 20 knots. heavy freezing spray. waves
8 to 12 feet. waves occasionally around 15 feet. 
.saturday night...northwest winds 15 to 20 knots. heavy freezing
spray. waves 5 to 7 feet. waves occasionally around 10 feet. 
.sunday...north winds 10 to 15 knots becoming northwest 5 to
10 knots late in the morning...then becoming west 10 to 15 knots
late in the evening. waves 3 to 5 feet subsiding to 1 to 3 feet
late in the afternoon. 
.monday...southwest winds 10 to 15 knots becoming south 20 to
25 knots by midnight. freezing spray by midnight. waves 1 to
3 feet building to 6 to 9 feet. waves occasionally around
12 feet. 
.tuesday...southwest winds 20 to 25 knots decreasing to 10 to
15 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 270248
glflh 
expires:202602271100;;314417

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm 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...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 as well as
areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.


lhz363-271100-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
948 pm est thu feb 26 2026

.rest of tonight...southwest winds 10 to 15 knots. waves 2 to
4 feet. 
.friday...southwest winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots in the afternoon. waves
1 to 3 feet building to 4 to 6 feet. waves occasionally around
8 feet. 
.friday night...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots with gusts to around
30 knots in the late evening and overnight. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. freezing spray. waves 6 to
9 feet. waves occasionally around 12 feet. 
.saturday night...northwest winds 15 to 20 knots. freezing spray
after midnight. waves 5 to 7 feet. waves occasionally around
10 feet. 
.sunday...northwest winds 10 to 15 knots becoming west late in
the evening. waves 4 to 6 feet subsiding to 1 to 3 feet late in
the afternoon. waves occasionally around 8 feet. 
.monday...southwest winds 10 to 15 knots becoming south 20 to
25 knots. waves 1 to 3 feet building to 4 to 6 feet. waves
occasionally around 8 feet. 
.tuesday...southwest winds 15 to 20 knots becoming south 10 to
15 knots early in the evening...then becoming southwest 15 to
20 knots by midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 270248
glflh 
expires:202602271100;;314418

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm 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...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 as well as
areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.


lhz462>464-271100-
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-
948 pm est thu feb 26 2026

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

wave heights are for ice free areas.

$$

fzus63 kmkx 270312
glflm 
expires:202602271030;;315605

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

light southwest winds continue tonight as high pressure of 30.1 
inches lingers over the northeast u.s. southwest winds will 
increase on friday ahead of an approaching cold front. winds will
become west to northwest friday evening and overnight behind the  
cold front. a few gusts to gale force are expected in the northern
third friday afternoon and evening, but not expecting these gusts
to be consistent enough to warrant headlines (gale watch/warning).
breezy northerly winds are then expected to linger through the 
weekend as high pressure of 30.7 inches builds into the upper
midwest.


lmz261-362-364-366-563-565-567-868-271030-
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-
912 pm cst thu feb 26 2026

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.friday...southwest winds 10 to 20 kt increasing to 30 kt with
occasional gales to 35 kt. waves 2 to 4 ft building to 6 to 9 ft 
occasionally to 12 ft. 
.friday night...west winds to 30 kt with occasional gales to 35 kt 
becoming northwest to 30 kt with occasional gales to 35 kt. 
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...north winds 10 to 20 kt. waves 3 to 5 ft. 
.sunday...northwest winds 10 to 20 kt diminishing to 5 to 10 kt
in the afternoon. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.sunday night...west winds 10 to 15 kt. waves 1 to 3 ft. 
.monday...southwest winds 10 to 20 kt. waves 1 to 3 ft building
to 3 to 5 ft. 
.tuesday...southwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmkx 270312
glflm 
expires:202602271030;;315606

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

light southwest winds continue tonight as high pressure of 30.1 
inches lingers over the northeast u.s. southwest winds will 
increase on friday ahead of an approaching cold front. winds will
become west to northwest friday evening and overnight behind the  
cold front. a few gusts to gale force are expected in the northern
third friday afternoon and evening, but not expecting these gusts
to be consistent enough to warrant headlines (gale watch/warning).
breezy northerly winds are then expected to linger through the 
weekend as high pressure of 30.7 inches builds into the upper
midwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-271030-
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-
912 pm cst thu feb 26 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. waves 2 to 4 ft. 
.friday...southwest winds 10 to 20 kt increasing to 30 kt. waves 
2 to 4 ft building to 5 to 8 ft occasionally to 10 ft.
.friday night...west winds to 30 kt becoming northwest 15 to 25 
kt. 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. chance of snow in the
evening. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...northeast winds 10 to 15 kt. waves 2 to 4 ft. 
.monday...east winds 10 to 15 kt becoming southeast. waves 2 to
4 ft. 
.tuesday...south winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 270301
glfls 
expires:202602270900;;314829

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 strong clipper low averaging 29.2 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. ridging continues into early 
next week ahead of a weak 30.1 inch trough tuesday.



lsz162-270900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est thu feb 26 2026 /900 pm cst thu feb 26 2026/

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

.rest of tonight...southwest winds 5 to 15 knots increasing to
10 to 20 knots late. 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...west gales to 45 knots becoming northwest gales
to 35 knots by midnight, then diminishing to 15 to 25 knots late.
heavy freezing spray in the evening. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 3 to 5 feet
occasionally to 7 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...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 5 to 15 knots veering south after
midnight. waves building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. waves building to 4 to 8 feet occasionally to 10 feet. 
.tuesday...southwest winds 20 to 30 knots becoming west 15 to
25 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 270301
glfls 
expires:202602270900;;314830

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 strong clipper low averaging 29.2 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. ridging continues into early 
next week ahead of a weak 30.1 inch trough tuesday.



lsz263-270900-
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 thu feb 26 2026

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

.rest of tonight...west winds 5 to 15 knots backing southwest by
midnight. 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 10 to 14 feet occasionally to
18 feet. 
.friday night...west gales to 45 knots becoming northwest gales
to 40 knots by midnight, then diminishing to 20 to 30 knots late.
heavy freezing spray. waves building to 11 to 15 feet
occasionally to 19 feet, then subsiding to 5 to 8 feet
occasionally to 10 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...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves building to 2 to
4 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. waves building to 7 to 11 feet occasionally to 14 feet.
.tuesday...southwest winds 20 to 30 knots veering west. waves
subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270301
glfls 
expires:202602270900;;314831

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 strong clipper low averaging 29.2 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. ridging continues into early 
next week ahead of a weak 30.1 inch trough tuesday.



lsz264-270900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est thu feb 26 2026

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

.rest of tonight...northwest winds 5 to 15 knots backing south
late. 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 10 to 14 feet occasionally to
18 feet. 
.friday night...west storm force winds to 55 knots veering
northwest by midnight, then diminishing to gales to 40 knots
late. heavy freezing spray. waves building to 15 to 20 feet
occasionally to 25 feet, then subsiding to 9 to 12 feet
occasionally to 15 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, then building to 2 to 4 feet. 
.sunday...northwest winds 5 to 15 knots backing west in the
afternoon. waves subsiding to calm to 2 feet. 
.sunday night...west winds 5 to 15 knots backing southwest after
midnight. waves building to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. freezing spray. waves building to 9 to 12 feet
occasionally to 15 feet. 
.tuesday...southwest gales to 35 knots veering west. waves
subsiding to 2 to 4 feet, then building to 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270301
glfls 
expires:202602270900;;314832

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 strong clipper low averaging 29.2 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. ridging continues into early 
next week ahead of a weak 30.1 inch trough tuesday.



lsz265-270900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est thu feb 26 2026

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

.rest of tonight...west winds 10 to 20 knots backing south late.
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 4 to 7 feet occasionally to
9 feet. 
.friday night...west storm force winds to 55 knots becoming
northwest storm force winds to 50 knots by midnight, then
diminishing to gales to 40 knots late. heavy freezing spray.
waves building to 6 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. a
slight chance of snow showers in the afternoon. waves subsiding
to 2 to 4 feet. 
.saturday night...northwest winds 15 to 25 knots. a slight chance
of snow showers. waves subsiding to 1 to 3 feet. 
.sunday...northwest winds 10 to 20 knots backing west in the
afternoon. waves subsiding to calm to 2 feet. 
.sunday night...west winds 10 to 20 knots backing southwest after
midnight. waves calm to 2 feet. 
.monday...south winds 15 to 25 knots becoming southwest 20 to
30 knots. waves building to 2 to 4 feet. 
.tuesday...southwest winds 20 to 30 knots becoming west gales to
35 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 270301
glfls 
expires:202602270900;;314833

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 strong clipper low averaging 29.2 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. ridging continues into early 
next week ahead of a weak 30.1 inch trough tuesday.



lsz266-270900-
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 thu feb 26 2026

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

.rest of tonight...west winds 10 to 20 knots backing south late.
waves 1 to 3 feet subsiding to calm to 2 feet. 
.friday...south winds 20 to 30 knots increasing to gales to
35 knots by late morning, then becoming southwest storm force
winds to 55 knots by mid afternoon. a slight chance of snow
showers in the morning. waves building to 10 to 14 feet
occasionally to 18 feet. 
.friday night...west storm force winds to 55 knots veering
northwest by midnight, then diminishing to gales to 45 knots
late. 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 slight chance
of snow showers. waves subsiding to 4 to 7 feet occasionally to
9 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. heavy freezing spray. a slight
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday...northwest winds 10 to 20 knots backing west in the
afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...west winds 10 to 20 knots backing southwest after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday...south winds 15 to 25 knots becoming southwest gales to
35 knots. freezing spray. waves building to 9 to 12 feet
occasionally to 15 feet. 
.tuesday...southwest gales to 35 knots veering west. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
5 to 8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270301
glfls 
expires:202602270900;;314834

open lake forecast for lake superior
national weather service marquette mi
1000 pm 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 strong clipper low averaging 29.2 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. ridging continues into early 
next week ahead of a weak 30.1 inch trough tuesday.



lsz267-270900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est thu feb 26 2026

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

.rest of tonight...southwest winds 10 to 20 knots veering west by
midnight, then backing southwest late. a slight chance of snow
showers late in the evening. waves 1 to 3 feet subsiding to calm
to 2 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 snow showers. a slight 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 becoming northwest storm
force winds to 50 knots by midnight, then diminishing to gales to
45 knots late. a slight chance of 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 slight chance
of snow showers. waves subsiding to 4 to 7 feet occasionally to
9 feet. 
.saturday night...northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. heavy freezing spray in the
evening. a slight chance of snow showers. waves subsiding to 2 to
4 feet. 
.sunday...north winds 5 to 15 knots backing west in the
afternoon. waves subsiding to 1 to 3 feet. 
.sunday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday...south winds 10 to 20 knots increasing to 20 to
30 knots. freezing spray. waves building to 7 to 11 feet
occasionally to 14 feet. 
.tuesday...southwest winds 20 to 30 knots becoming west gales to
35 knots. waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 5 to 8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$