fzus63 kdtx 130257
glflh 
expires:202602131100;;538359

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 pm est thu feb 12 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 retains control over most of the central
great lakes through the weekend offering milder and drier
conditions. the exception will be a clipper system brushing
northern lake huron friday which touches off some light snow.
winds vary in direction, remaining rather weak saturday and into
early next week.


lhz361-131100-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
957 pm est thu feb 12 2026

.rest of tonight...west winds 5 to 10 knots backing to the
southwest early in the morning. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then veering
to the west late in the afternoon. waves 1 to 3 feet. 
.friday night...west winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...south winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...south winds 5 to 10 knots veering to the west late in
the afternoon. waves 2 feet or less. 
.monday...south winds 5 to 10 knots veering to the west by
midnight. waves 2 feet or less. 
.tuesday...west winds 5 to 10 knots veering to the northeast in
the late morning and early afternoon...then veering to the
southeast early in the evening becoming east 10 to 15 knots by
midnight. a chance of. waves 1 to 3 feet building to 3 to 5 feet
by midnight. 

wave heights are for ice free areas.

$$

fzus63 kdtx 130257
glflh 
expires:202602131100;;538360

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 pm est thu feb 12 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 retains control over most of the central
great lakes through the weekend offering milder and drier
conditions. the exception will be a clipper system brushing
northern lake huron friday which touches off some light snow.
winds vary in direction, remaining rather weak saturday and into
early next week.


lhz362-363-131100-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
957 pm est thu feb 12 2026

.rest of tonight...west winds 5 to 10 knots. waves 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet in the late
morning and afternoon. 
.friday night...west winds 10 to 15 knots becoming northwest 5 to
10 knots after midnight. waves 3 to 5 feet. 
.saturday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 5 to 10 knots
early in the afternoon. waves 1 to 3 feet. 
.saturday night...south winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...south winds 10 to 15 knots becoming southwest 5 to
10 knots late in the afternoon...then veering to the west late in
the evening. waves 1 to 3 feet. 
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots backing to the east
until early evening...then becoming southeast 15 to 20 knots by
midnight. a chance of rain and snow by midnight. waves 1 to
3 feet building to 3 to 5 feet by midnight. 

wave heights are for ice free areas.

$$

fzus63 kdtx 130257
glflh 
expires:202602131100;;538361

open lake forecast for lake huron
national weather service detroit/pontiac mi
957 pm est thu feb 12 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 retains control over most of the central
great lakes through the weekend offering milder and drier
conditions. the exception will be a clipper system brushing
northern lake huron friday which touches off some light snow.
winds vary in direction, remaining rather weak saturday and into
early next week.


lhz462>464-131100-
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-
957 pm est thu feb 12 2026

.rest of tonight...light and variable winds becoming southwest
5 to 10 knots early in the morning. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots becoming south 10 to
15 knots in the afternoon. waves 1 to 3 feet. 
.friday night...southwest winds 10 to 15 knots veering to the
west by midnight...then becoming northwest 5 to 10 knots after
midnight. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.saturday night...south winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...south winds 5 to 10 knots veering to the southwest late
in the evening. waves 2 feet or less. 
.monday...south winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots backing to the southeast
early in the evening...then increasing to 10 to 15 knots by
midnight. a chance of. waves 2 feet or less. 

wave heights are for ice free areas.

$$

fzus63 kmkx 130259
glflm 
expires:202602131015;;538462

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cst thu feb 12 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...

30.3 inch high pressure is shifting east of lake michigan this 
evening, resulting in light east to southeast winds across the 
open waters. winds will veer southerly through the second half of 
the overnight hours as said high moves into the ohio river valley.
winds will continue to veer through friday, with southwesterly 
readings becoming established as 29.7 inch low pressure moves 
from the southern hudson bay into quebec. gusts between 25-30 
knots are possible over the northern third of lake michigan friday
morning, though gales are not anticipated. winds will trend light
and variable friday evening into saturday as 30.2 inch high 
pressure approaches and ultimately crosses the open waters. winds 
will veer south to southwesterly ahead of a weak cold front 
saturday night. the front is forecast to cross the waters early 
sunday morning, bringing a brief northwesterly wind shift during 
the afternoon hours. winds will shift back to the southwest sunday
night through monday, when 29.6 inch low pressure is forecast to 
develop over northern ontario. 

stronger low pressure near 29.2 inches will form over the 
northern great plains during the day on tuesday, resulting in 
increasing southeasterly winds over lake michigan. winds will 
continue to increase tuesday night into wednesday as the low 
approaches and eventually crosses lake michigan. the low will 
progress east of the waters wednesday afternoon & evening, 
resulting in a gusty east-northeast wind shift wednesday night 
through thursday morning. a few gale force gusts are possible 
tuesday night through thursday morning, with trends being 
monitored for possible headlines over coming forecasts. rain and 
snow will accompany the approaching passing/low tuesday evening 
through thursday, with a few rumbles of thunder possible tuesday 
evening through wednesday. pockets of light to moderate freezing 
spray are possible late wednesday night into thursday morning over
the northern half of the waters.


lmz261-362-364-366-563-565-567-868-131015-
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-
859 pm cst thu feb 12 2026

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 5 to 10 kt increasing to 10 to
20 kt. waves 1 to 2 ft building to 1 to 3 ft. 
.friday...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...northwest winds 10 to 15 kt becoming north late
in the evening, then diminishing to 5 to 10 kt after midnight
becoming northeast late. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.saturday...south winds 5 to 10 kt. waves 1 to 2 ft. 
.saturday night...south winds 10 to 15 kt becoming southwest.
waves 1 to 3 ft. 
.sunday...west winds 10 to 15 kt becoming northwest. waves 1 to
3 ft. 
.sunday night...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 2 ft building to 1 to 3 ft. 
.monday...south winds 10 to 20 kt becoming southwest. waves 3 to
5 ft. 
.tuesday...southeast winds 10 to 20 kt becoming east. waves 3 to
5 ft.  

$$

fzus63 kmkx 130259
glflm 
expires:202602131015;;538463

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cst thu feb 12 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...

30.3 inch high pressure is shifting east of lake michigan this 
evening, resulting in light east to southeast winds across the 
open waters. winds will veer southerly through the second half of 
the overnight hours as said high moves into the ohio river valley.
winds will continue to veer through friday, with southwesterly 
readings becoming established as 29.7 inch low pressure moves 
from the southern hudson bay into quebec. gusts between 25-30 
knots are possible over the northern third of lake michigan friday
morning, though gales are not anticipated. winds will trend light
and variable friday evening into saturday as 30.2 inch high 
pressure approaches and ultimately crosses the open waters. winds 
will veer south to southwesterly ahead of a weak cold front 
saturday night. the front is forecast to cross the waters early 
sunday morning, bringing a brief northwesterly wind shift during 
the afternoon hours. winds will shift back to the southwest sunday
night through monday, when 29.6 inch low pressure is forecast to 
develop over northern ontario. 

stronger low pressure near 29.2 inches will form over the 
northern great plains during the day on tuesday, resulting in 
increasing southeasterly winds over lake michigan. winds will 
continue to increase tuesday night into wednesday as the low 
approaches and eventually crosses lake michigan. the low will 
progress east of the waters wednesday afternoon & evening, 
resulting in a gusty east-northeast wind shift wednesday night 
through thursday morning. a few gale force gusts are possible 
tuesday night through thursday morning, with trends being 
monitored for possible headlines over coming forecasts. rain and 
snow will accompany the approaching passing/low tuesday evening 
through thursday, with a few rumbles of thunder possible tuesday 
evening through wednesday. pockets of light to moderate freezing 
spray are possible late wednesday night into thursday morning over
the northern half of the waters.


lmz080-669-671-673-675-777-779-870-872-874-876-878-131015-
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-
859 pm cst thu feb 12 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southeast winds 5 to 10 kt becoming south.
waves 1 to 2 ft. 
.friday...south winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.friday night...southwest winds 10 to 15 kt becoming west late in
the evening, then becoming northwest 5 to 10 kt after midnight
becoming northeast late. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.saturday...south winds 5 to 10 kt. waves 1 to 2 ft. 
.saturday night...south winds 5 to 10 kt becoming southwest.
waves 1 to 2 ft. 
.sunday...southwest winds 5 to 10 kt veering to northwest. waves
1 to 2 ft. 
.sunday night...east winds 5 to 10 kt veering to south 10 to
15 kt. waves 1 to 2 ft building to 1 to 3 ft. 
.monday...south winds 10 to 20 kt. waves 3 to 5 ft. 
.tuesday...southeast winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 130301
glfls 
expires:202602130900;;538554

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 12 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 30.3 inch high pressure is retreating into the southern portion of 
the great lakes while a 29.8 inch low moves across far northern 
ontario tonight. this low then pulls a 29.9 inch trough over eastern 
lake superior on friday. high pressure then builds back to 30.1 
inches over the great lakes by saturday morning before a weak 29.9 
inch trough moves into the upper great lakes saturday evening. weak 
troughing of around 29.8 inches hangs out over the upper great lakes 
the rest of this weekend before strengthening to 29.7 inches over 
lake superior via a 29.6 inch low lifting over northern ontario on 
monday. weak ridging of 30.2 inches crosses back over lake superior 
on tuesday ahead of a 29.3 inch low lifting off of the central 
rockies.



lsz162-130900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est thu feb 12 2026 /900 pm cst thu feb 12 2026/

.rest of tonight...south winds 5 to 15 knots veering southwest by
midnight, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.friday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots becoming northeast less
than 10 knots by midnight, then becoming south 5 to 15 knots
late. waves calm to 2 feet. 
.saturday...south winds less than 10 knots becoming southwest
5 to 15 knots in the afternoon. waves calm to 2 feet. 
.saturday night...west winds 5 to 15 knots. waves calm to 2 feet.
.sunday...west winds 5 to 15 knots backing southwest in the
afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.monday...west winds 5 to 15 knots veering northeast. waves calm
to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 5 to 8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202602130900;;538555

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 12 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 30.3 inch high pressure is retreating into the southern portion of 
the great lakes while a 29.8 inch low moves across far northern 
ontario tonight. this low then pulls a 29.9 inch trough over eastern 
lake superior on friday. high pressure then builds back to 30.1 
inches over the great lakes by saturday morning before a weak 29.9 
inch trough moves into the upper great lakes saturday evening. weak 
troughing of around 29.8 inches hangs out over the upper great lakes 
the rest of this weekend before strengthening to 29.7 inches over 
lake superior via a 29.6 inch low lifting over northern ontario on 
monday. weak ridging of 30.2 inches crosses back over lake superior 
on tuesday ahead of a 29.3 inch low lifting off of the central 
rockies.



lsz263-130900-
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 12 2026

.rest of tonight...south winds 5 to 15 knots becoming southwest
10 to 20 knots by midnight, then increasing to 15 to 25 knots
late. waves calm to 2 feet building to 2 to 4 feet. 
.friday...west winds 15 to 25 knots diminishing to 5 to 15 knots.
waves subsiding to calm to 2 feet. 
.friday night...northwest winds less than 10 knots backing south
by midnight. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots veering southwest in the
afternoon. waves calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots veering west
after midnight. waves calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing southwest in the
afternoon. waves calm to 2 feet. 
.sunday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.monday...west winds 5 to 15 knots backing east. waves calm to
2 feet. 
.tuesday...east winds 10 to 20 knots increasing to 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 7 to 10 feet occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202602130900;;538556

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 12 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 30.3 inch high pressure is retreating into the southern portion of 
the great lakes while a 29.8 inch low moves across far northern 
ontario tonight. this low then pulls a 29.9 inch trough over eastern 
lake superior on friday. high pressure then builds back to 30.1 
inches over the great lakes by saturday morning before a weak 29.9 
inch trough moves into the upper great lakes saturday evening. weak 
troughing of around 29.8 inches hangs out over the upper great lakes 
the rest of this weekend before strengthening to 29.7 inches over 
lake superior via a 29.6 inch low lifting over northern ontario on 
monday. weak ridging of 30.2 inches crosses back over lake superior 
on tuesday ahead of a 29.3 inch low lifting off of the central 
rockies.



lsz264-130900-
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 12 2026

.rest of tonight...south winds 5 to 15 knots becoming southwest
15 to 25 knots by midnight, then increasing to 20 to 30 knots
late. waves calm to 2 feet building to 3 to 5 feet occasionally
to 7 feet. 
.friday...west winds 15 to 25 knots veering northwest by late
morning, then diminishing to 5 to 15 knots by mid afternoon.
waves subsiding to 1 to 3 feet. 
.friday night...north winds 5 to 15 knots diminishing to less
than 10 knots by midnight, then backing southwest late. waves
subsiding to calm to 2 feet. 
.saturday...south winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...southwest winds 5 to 15 knots veering northwest
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...southwest winds 5 to 15 knots backing south after
midnight. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots veering northwest. waves calm
to 2 feet. 
.tuesday...east winds 10 to 20 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 7 to
10 feet occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202602130900;;538557

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 12 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 30.3 inch high pressure is retreating into the southern portion of 
the great lakes while a 29.8 inch low moves across far northern 
ontario tonight. this low then pulls a 29.9 inch trough over eastern 
lake superior on friday. high pressure then builds back to 30.1 
inches over the great lakes by saturday morning before a weak 29.9 
inch trough moves into the upper great lakes saturday evening. weak 
troughing of around 29.8 inches hangs out over the upper great lakes 
the rest of this weekend before strengthening to 29.7 inches over 
lake superior via a 29.6 inch low lifting over northern ontario on 
monday. weak ridging of 30.2 inches crosses back over lake superior 
on tuesday ahead of a 29.3 inch low lifting off of the central 
rockies.



lsz265-130900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est thu feb 12 2026

.rest of tonight...south winds 5 to 15 knots veering southwest by
midnight, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.friday...west winds 10 to 20 knots increasing to 15 to 25 knots
by late morning, then becoming northwest 10 to 20 knots by mid
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.friday night...west winds 5 to 15 knots backing southwest late.
waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.saturday night...south winds 10 to 20 knots veering west after
midnight. waves calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots backing west in the
afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.monday...west winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday...east winds 10 to 20 knots increasing to 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 5 to 8 feet occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202602130900;;538558

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 12 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 30.3 inch high pressure is retreating into the southern portion of 
the great lakes while a 29.8 inch low moves across far northern 
ontario tonight. this low then pulls a 29.9 inch trough over eastern 
lake superior on friday. high pressure then builds back to 30.1 
inches over the great lakes by saturday morning before a weak 29.9 
inch trough moves into the upper great lakes saturday evening. weak 
troughing of around 29.8 inches hangs out over the upper great lakes 
the rest of this weekend before strengthening to 29.7 inches over 
lake superior via a 29.6 inch low lifting over northern ontario on 
monday. weak ridging of 30.2 inches crosses back over lake superior 
on tuesday ahead of a 29.3 inch low lifting off of the central 
rockies.



lsz266-130900-
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 12 2026

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130301
glfls 
expires:202602130900;;538559

open lake forecast for lake superior
national weather service marquette mi
1000 pm est thu feb 12 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 30.3 inch high pressure is retreating into the southern portion of 
the great lakes while a 29.8 inch low moves across far northern 
ontario tonight. this low then pulls a 29.9 inch trough over eastern 
lake superior on friday. high pressure then builds back to 30.1 
inches over the great lakes by saturday morning before a weak 29.9 
inch trough moves into the upper great lakes saturday evening. weak 
troughing of around 29.8 inches hangs out over the upper great lakes 
the rest of this weekend before strengthening to 29.7 inches over 
lake superior via a 29.6 inch low lifting over northern ontario on 
monday. weak ridging of 30.2 inches crosses back over lake superior 
on tuesday ahead of a 29.3 inch low lifting off of the central 
rockies.



lsz267-130900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est thu feb 12 2026

.rest of tonight...southwest winds 5 to 15 knots increasing to
10 to 20 knots late. waves calm to 2 feet building to 2 to
4 feet. 
.friday...southwest winds 15 to 25 knots veering northwest by mid
afternoon. a chance of snow showers in the morning. waves
building to 3 to 6 feet occasionally to 8 feet. 
.friday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots by midnight. waves subsiding to calm to 2 feet. 
.saturday...south winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.saturday night...south winds 10 to 20 knots. waves building to
1 to 3 feet. 
.sunday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.sunday night...southwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.monday...south winds 10 to 20 knots veering west. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday...east winds 10 to 20 knots increasing to 20 to
30 knots. a chance of snow showers, possibly mixed with freezing
rain. waves building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$