fzus61 kbuf 271503
glflo 
expires:202602272200;;342051

open lake forecast for lake ontario
national weather service buffalo ny
1003 am est fri feb 27 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 30.1 inch high will slide off the new england 
coastline this afternoon. a 29.2 inch low will strengthen to 29.0 
inches as it moves from north of lake superior to northern quebec 
tonight and saturday while swinging a cold front across the lake 
late tonight and saturday morning, followed by a secondary cold 
front that will move across the lake saturday night. a 30.6 inch 
high will then settle across the great lakes sunday, new england 
monday, and across the western atlantic tuesday. a cold front will 
cross the lake late tuesday and tuesday night, followed by a 30.4 
inch high building into the lower great lakes on wednesday.


loz064-065-272200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1003 am est fri feb 27 2026

.this afternoon...south winds 5 to 15 knots. waves 2 feet or less.
.tonight...south winds 10 to 15 knots increasing to 30 knots
after midnight. a chance of rain showers late. waves 2 feet or
less building to 5 to 8 feet. waves occasionally around 10 feet. 
.saturday...southwest winds 15 to 25 knots becoming west. a
chance of rain showers in the morning. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.saturday night...northwest winds 10 to 15 knots becoming north.
snow likely overnight. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.sunday...north winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of snow showers during the day. waves 1 to
3 feet. 
.monday...east winds 5 to 15 knots becoming south 15 to 20 knots.
waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots. a chance of snow and rain
showers tuesday night. waves 2 to 4 feet subsiding to 1 to
3 feet. 

$$

fzus61 kbuf 271503
glflo 
expires:202602272200;;342050

open lake forecast for lake ontario
national weather service buffalo ny
1003 am est fri feb 27 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 30.1 inch high will slide off the new england 
coastline this afternoon. a 29.2 inch low will strengthen to 29.0 
inches as it moves from north of lake superior to northern quebec 
tonight and saturday while swinging a cold front across the lake 
late tonight and saturday morning, followed by a secondary cold 
front that will move across the lake saturday night. a 30.6 inch 
high will then settle across the great lakes sunday, new england 
monday, and across the western atlantic tuesday. a cold front will 
cross the lake late tuesday and tuesday night, followed by a 30.4 
inch high building into the lower great lakes on wednesday.


loz062-063-272200-
lake ontario open waters from the niagara river to sodus bay-
1003 am est fri feb 27 2026

.this afternoon...southwest winds 10 to 15 knots. waves 2 feet or
less. 
.tonight...south winds 15 to 25 knots becoming southwest. a
chance of rain showers late. waves 1 to 3 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.saturday...west winds 15 to 20 knots becoming northwest. a
chance of rain showers in the morning. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.saturday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of snow showers in the evening, then
snow likely overnight. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.sunday...north winds 5 to 15 knots. a chance of snow showers
during the day. waves 1 to 3 feet. 
.monday...northeast winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming west. a chance of
snow showers during the day, then a chance of rain and snow
showers tuesday night. waves 2 to 4 feet subsiding to 1 to
3 feet. 

$$

fzus61 kcle 271419
glfle 
expires:202602272130;;340736

open lake forecast for lake erie
national weather service cleveland oh
919 am est fri feb 27 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 30.00 inches persists across the lake today as low
pressure deepens to 29.10 inches as it pushes across the northern
great lakes tonight, moving a cold front east across lake erie 
late tonight into saturday. a trough averaging 30.20 inches 
lingers across the eastern great lakes saturday night into sunday.
high pressure 30.50 inches returns sunday as it builds from the 
upper midwest eastward towards new england and persist into 
tuesday.


lez162-163-272130-
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-
919 am est fri feb 27 2026

.this afternoon...southwest winds 10 to 15 knots. waves in ice
free areas 2 feet or less. 
.tonight...south winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet. 
.saturday...west winds 10 knots or less becoming east. waves
2 feet or less. 
.saturday night...east winds 10 to 15 knots becoming north. snow
likely in the evening, then a chance of snow overnight. waves
2 feet or less. 
.sunday...north winds 10 to 15 knots becoming east. a chance of
snow sunday night. waves 2 feet or less. 
.monday...east winds around 10 knots becoming southeast. waves
1 to 3 feet subsiding to 1 foot or less. 
.tuesday...east winds 5 to 10 knots becoming north. a chance of
rain. waves 1 foot or less. 

wave heights are for ice free areas.

$$

fzus61 kcle 271419
glfle 
expires:202602272130;;340738

open lake forecast for lake erie
national weather service cleveland oh
919 am est fri feb 27 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 30.00 inches persists across the lake today as low
pressure deepens to 29.10 inches as it pushes across the northern
great lakes tonight, moving a cold front east across lake erie 
late tonight into saturday. a trough averaging 30.20 inches 
lingers across the eastern great lakes saturday night into sunday.
high pressure 30.50 inches returns sunday as it builds from the 
upper midwest eastward towards new england and persist into 
tuesday.


lez061-167>169-272130-
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-
919 am est fri feb 27 2026

.this afternoon...southwest winds 10 to 15 knots. the lake is
mostly ice covered.
.tonight...south winds 15 to 25 knots becoming southwest. a
slight chance of rain showers after midnight. 
.saturday...west winds 15 to 20 knots becoming north 5 to
15 knots. 
.saturday night...northeast winds 5 to 15 knots becoming north.
snow likely in the evening, then a chance of snow overnight. 
.sunday...north winds 5 to 15 knots becoming northeast. 
.monday...east winds 5 to 10 knots becoming southeast. 
.tuesday...east winds 5 to 10 knots becoming north. a chance of
rain and snow during the day, then a chance of rain tuesday
night. 

waves omitted due to the lake being mostly ice covered.

$$

fzus61 kcle 271419
glfle 
expires:202602272130;;340737

open lake forecast for lake erie
national weather service cleveland oh
919 am est fri feb 27 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 30.00 inches persists across the lake today as low
pressure deepens to 29.10 inches as it pushes across the northern
great lakes tonight, moving a cold front east across lake erie 
late tonight into saturday. a trough averaging 30.20 inches 
lingers across the eastern great lakes saturday night into sunday.
high pressure 30.50 inches returns sunday as it builds from the 
upper midwest eastward towards new england and persist into 
tuesday.


lez164>166-272130-
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-
919 am est fri feb 27 2026

.this afternoon...southwest winds 10 to 15 knots. waves in ice
free areas 1 to 3 feet. 
.tonight...south winds 15 to 25 knots becoming west. a slight
chance of rain showers after midnight. waves 2 to 4 feet building
to 3 to 5 feet. 
.saturday...west winds 5 to 15 knots becoming northeast 10 knots
or less. waves 2 to 4 feet subsiding to 1 foot or less. 
.saturday night...northeast winds 10 to 15 knots becoming north
15 to 20 knots. snow likely in the evening, then a chance of snow
overnight. waves 1 to 3 feet. 
.sunday...north winds 15 to 20 knots becoming east 10 to
15 knots. waves 1 to 3 feet. 
.monday...east winds 10 to 15 knots becoming southeast. waves
1 to 3 feet. 
.tuesday...southeast winds 5 to 15 knots becoming north. a chance
of rain. waves 2 feet or less. 

wave heights are for ice free areas.

$$

fzus63 kdtx 271458
glfsc 
expires:202602272300;;341565

lake st clair forecast
national weather service detroit/pontiac mi
958 am est fri feb 27 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...strong northern ontario low pressure, 29.00 inches,
sends an arctic cold front through the central great lakes
tonight bringing the next short period of northwest gales as well
as areas of freezing spray. high pressure, 30.70 inches, then
follows for the latter half of the weekend.


lcz460-272300-
lake st clair-
958 am est fri feb 27 2026

.rest of today...southwest winds 10 to 15 knots. sunny.
.tonight...southwest winds 15 to 20 knots becoming west 10 to 15
knots after midnight. partly cloudy.
.saturday...northwest winds 10 to 15 knots becoming north 5 to 10
knots in the late morning and afternoon. partly sunny.
.saturday night...north winds 10 to 15 knots. mostly cloudy. light
snow likely .
.sunday...north winds 10 to 15 knots diminishing to 5 to 10 knots in
the afternoon and evening. mostly sunny becoming partly cloudy.
.monday...southeast winds 5 to 10 knots. mostly clear.
.tuesday...northeast winds 5 to 10 knots. mostly cloudy with a
chance of light rain and snow.

waves omitted due to ice coverage.

$$

fzus63 kdtx 271452
glflh 
expires:202602272300;;341404

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am est fri feb 27 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
tonight bringing the next period of northwest gales as well as 
areas of freezing spray. high pressure, 30.70 inches, then follows
for the latter half of the weekend.


lhz363-272300-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
952 am est fri feb 27 2026

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

wave heights are for ice free areas.

$$

fzus63 kdtx 271452
glflh 
expires:202602272300;;341405

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am est fri feb 27 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
tonight bringing the next period of northwest gales as well as 
areas of freezing spray. high pressure, 30.70 inches, then follows
for the latter half of the weekend.


lhz462>464-272300-
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 am est fri feb 27 2026

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

wave heights are for ice free areas.

$$

fzus63 kdtx 271452
glflh 
expires:202602272300;;341403

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am est fri feb 27 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
tonight bringing the next period of northwest gales as well as 
areas of freezing spray. high pressure, 30.70 inches, then follows
for the latter half of the weekend.


lhz361-362-272300-
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 am est fri feb 27 2026

...gale warning in effect from this evening through saturday
morning...

.rest of today...south winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. waves 2 to 4 feet building to
4 to 6 feet in the afternoon. waves occasionally around 8 feet. 
.tonight...southwest winds 20 to 25 knots with gusts to 35 knot
gales veering to the west with gusts to 40 knot gales after
midnight...then increasing to 30 knots with gusts to 40 knot
gales early in the morning. 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 in the late morning and
afternoon. freezing spray. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.saturday night...northwest winds 15 to 20 knots. freezing spray.
waves 4 to 6 feet. waves occasionally around 8 feet. 
.sunday...north winds 10 to 15 knots becoming northwest 5 to
10 knots late in the morning...then backing to the west 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 15 to
20 knots. freezing spray by midnight. waves 1 to 3 feet building
to 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday...south winds 15 to 20 knots decreasing to 10 to
15 knots . waves 4 to 6 feet. waves occasionally around 8 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 271451
glflm 
expires:202602272215;;341397

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cst fri feb 27 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...

southwest winds will become gusty today, ahead of an approaching 
cold front. winds will become west to northwest and remain gusty 
this evening and overnight, behind the cold front. a few gusts to 
gale force are expected in the northern third of the lake this 
afternoon and evening. breezy north to northwest winds are then 
expected to linger into the weekend. these winds will weaken by 
sunday night, as high pressure around 30.6 inches builds into the
upper midwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-272215-
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-
851 am cst fri feb 27 2026

sheboygan wi to pentwater mi south...

.rest of today...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. 
.tonight...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. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday night...north winds 10 to 20 kt. chance of snow
overnight. 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...southeast winds 10 to 20 kt becoming east 10 to 15 kt.
chance of rain and snow. waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 271451
glflm 
expires:202602272215;;341396

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cst fri feb 27 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...

southwest winds will become gusty today, ahead of an approaching 
cold front. winds will become west to northwest and remain gusty 
this evening and overnight, behind the cold front. a few gusts to 
gale force are expected in the northern third of the lake this 
afternoon and evening. breezy north to northwest winds are then 
expected to linger into the weekend. these winds will weaken by 
sunday night, as high pressure around 30.6 inches builds into the
upper midwest.


lmz261-362-364-366-563-565-567-868-272215-
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-
851 am cst fri feb 27 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 20 kt increasing to 30 kt.
waves 2 to 4 ft building to 6 to 9 ft occasionally to 12 ft. 
.tonight...west winds to 30 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. chance of snow in the afternoon. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday night...north winds 10 to 20 kt. chance of snow
overnight. waves 2 to 4 ft building to 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 2 ft. 
.monday...southwest winds 10 to 20 kt. waves 1 to 3 ft building
to 2 to 4 ft. 
.tuesday...south winds 10 to 20 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmqt 271501
glfls 
expires:202602272100;;341765

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 27 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 of 29.2 inches moves across northern ontario 
today and tonight, 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 monday night.



lsz162-272100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est fri feb 27 2026 /900 am cst fri feb 27 2026/

...gale warning in effect through late tonight...
...heavy freezing spray warning in effect from 7 pm est /6 pm
cst/ this evening through saturday morning...

.rest of today...southwest winds 20 to 30 knots becoming west
gales to 40 knots by mid afternoon. waves 2 to 4 feet building to
7 to 10 feet occasionally to 13 feet. 
.tonight...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 9 to
12 feet occasionally to 15 feet, then 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...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 calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 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 271501
glfls 
expires:202602272100;;341766

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 27 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 of 29.2 inches moves across northern ontario 
today and tonight, 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 monday night.



lsz263-272100-
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 am est fri feb 27 2026

...gale warning in effect through late tonight...
...heavy freezing spray warning in effect from 7 pm est this
evening through saturday morning...

.rest of today...south winds 15 to 25 knots becoming southwest
gales to 35 knots by late morning, then becoming west gales to
45 knots by mid afternoon. a slight chance of snow showers in the
afternoon. waves 2 to 4 feet building to 8 to 11 feet
occasionally to 14 feet. 
.tonight...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 10 to 14 feet
occasionally to 18 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots veering north
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...south winds 5 to 15 knots. waves building to 1 to
3 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. waves building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...southwest winds 20 to 30 knots veering west. waves
subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 271501
glfls 
expires:202602272100;;341767

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 27 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 of 29.2 inches moves across northern ontario 
today and tonight, 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 monday night.



lsz264-272100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est fri feb 27 2026

...storm warning in effect through saturday morning...
...heavy freezing spray warning in effect from 7 pm est this
evening through saturday afternoon...

.rest of today...south winds 15 to 25 knots becoming southwest
gales to 35 knots by late morning, then becoming west gales to
45 knots by mid afternoon. a slight chance of rain and snow
showers in the afternoon. waves 3 to 5 feet occasionally to
7 feet building to 9 to 12 feet occasionally to 15 feet. 
.tonight...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 12 to 17 feet occasionally to
21 feet, then subsiding to 7 to 10 feet occasionally to 13 feet. 
.saturday...northwest gales to 35 knots diminishing to 10 to
20 knots. heavy freezing spray in the morning. a slight chance
of. a slight chance of. waves subsiding to 1 to 3 feet. 
.saturday night...northwest winds 10 to 20 knots. a slight chance
of. waves 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...west winds 5 to 15 knots backing southwest after
midnight. waves building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to gales to
35 knots. freezing spray. waves building to 5 to 9 feet
occasionally to 11 feet. 
.tuesday...southwest gales to 35 knots veering west. waves
subsiding to 1 to 3 feet, then building to 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 271501
glfls 
expires:202602272100;;341768

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 27 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 of 29.2 inches moves across northern ontario 
today and tonight, 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 monday night.



lsz265-272100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est fri feb 27 2026

...storm warning in effect through saturday morning...
...heavy freezing spray warning in effect from 10 pm est this
evening through saturday afternoon...

.rest of today...south winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then becoming west gales to 45 knots by
mid afternoon. waves 1 to 3 feet building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...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. a slight chance of. waves building to
7 to 10 feet occasionally to 13 feet, then subsiding to 5 to
8 feet occasionally to 10 feet. 
.saturday...northwest gales to 35 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet. 
.saturday night...northwest winds 15 to 25 knots. a slight chance
of. waves 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 1 to 3 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 271501
glfls 
expires:202602272100;;341769

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 27 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 of 29.2 inches moves across northern ontario 
today and tonight, 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 monday night.



lsz266-272100-
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 am est fri feb 27 2026

...storm warning in effect through saturday morning...
...heavy freezing spray warning in effect from 10 pm est this
evening through late saturday night...

.rest of today...south winds 20 to 30 knots increasing to gales
to 35 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 2 to 4 feet
building to 9 to 12 feet occasionally to 15 feet. 
.tonight...west storm force winds to 55 knots veering northwest
by midnight, then diminishing to gales to 45 knots late. heavy
freezing spray and a chance of. a chance of. waves building to
17 to 22 feet occasionally to 28 feet, then subsiding to 12 to
17 feet occasionally to 21 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. heavy freezing spray in the
evening. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.sunday...northwest winds 10 to 20 knots backing west in the
afternoon. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet. 
.sunday night...west winds 10 to 20 knots backing southwest after
midnight. waves building to 2 to 4 feet. 
.monday...south winds 15 to 25 knots becoming southwest gales to
35 knots. freezing spray. waves building to 5 to 9 feet
occasionally to 11 feet. 
.tuesday...southwest gales to 35 knots veering west. waves
subsiding to 2 to 4 feet, then building to 5 to 8 feet
occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 271501
glfls 
expires:202602272100;;341770

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri feb 27 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 of 29.2 inches moves across northern ontario 
today and tonight, 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 monday night.



lsz267-272100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est fri feb 27 2026

...storm warning in effect through saturday morning...
...heavy freezing spray warning in effect from 10 pm est this
evening through late saturday night...

.rest of today...south winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then becoming southwest gales to
40 knots by mid afternoon. a slight chance of snow showers. a
slight chance of rain showers in the afternoon. waves 1 to 3 feet
building to 7 to 10 feet occasionally to 13 feet. 
.tonight...west gales to 45 knots becoming northwest storm force
winds to 50 knots by midnight, then diminishing to gales to
45 knots late. heavy freezing spray. a chance of snow showers,
possibly mixed with rain in the evening. snow showers likely
after midnight. waves building to 17 to 22 feet occasionally to
28 feet, then subsiding to 12 to 17 feet occasionally to 21 feet.
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. heavy freezing spray in the
evening. a 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 calm to 2 feet, then building to
1 to 3 feet. 
.sunday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.monday...south winds 10 to 20 knots increasing to 20 to
30 knots. freezing spray. waves building to 5 to 9 feet
occasionally to 11 feet. 
.tuesday...southwest winds 20 to 30 knots becoming west gales to
35 knots. waves subsiding to 2 to 4 feet, then building to 5 to
8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$