fzus63 kdtx 021455
glflh 
expires:202512022300;;883842

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am est tue dec 2 2025

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 will continue to push off towards the
new england region today. a strong arctic cold front arrives 
midweek bringing a period of stronger preceding southwest and 
trailing northwest winds.


lhz361-362-022300-
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-
955 am est tue dec 2 2025

.rest of today...southwest winds 10 to 15 knots decreasing to
5 to 10 knots in the afternoon. waves 2 to 4 feet subsiding to
1 to 3 feet in the afternoon. 
.tonight...southwest winds 10 to 15 knots increasing to 20 to
25 knots with gusts to around 30 knots. waves 2 to 4 feet
building to 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...southwest winds 20 to 25 knots. gusts to 30 knots
until late afternoon. snow showers likely in the morning...then
snow showers in the afternoon. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.wednesday night...northwest winds 20 to 25 knots with gusts to
around 30 knots. snow showers in the evening...then snow showers
likely after midnight. freezing spray after midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday...west winds 20 to 25 knots with gusts to around
30 knots becoming northwest 15 to 20 knots late in the morning...
then backing to the west late in the afternoon becoming southwest
20 to 25 knots with gusts to around 30 knots late in the evening.
freezing spray. snow showers likely in the morning. a chance of
snow showers late in the morning. waves 8 to 12 feet subsiding to
6 to 9 feet late in the afternoon. waves occasionally around
15 feet. 
.friday...southwest winds 20 to 25 knots. gusts to 30 knots early
in the morning. a chance of snow showers early in the morning...
then snow showers likely until early morning. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.saturday...west winds 15 to 20 knots becoming northwest 10 to
15 knots in the late evening and early morning. a chance of snow
showers. waves 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kdtx 021455
glflh 
expires:202512022300;;883843

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 am est tue dec 2 2025

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 will continue to push off towards the
new england region today. a strong arctic cold front arrives 
midweek bringing a period of stronger preceding southwest and 
trailing northwest winds.


lhz363-462-022300-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
955 am est tue dec 2 2025

.rest of today...southwest winds 5 to 10 knots increasing to
10 to 15 knots late in the afternoon. waves 1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots increasing to 20 to
25 knots with gusts to around 30 knots. waves 1 to 3 feet
building to 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots. a chance of snow showers in the morning...then snow
showers in the afternoon. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.wednesday night...west winds 15 to 20 knots becoming northwest
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. snow showers likely in the evening...then a chance
of snow showers after midnight. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.thursday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots late in the afternoon...
then becoming southwest 20 to 25 knots with gusts to around
30 knots late in the evening. a chance of snow showers in the
morning. waves 6 to 9 feet. waves occasionally around 11 feet. 
.friday...southwest winds to 30 knots decreasing to 20 to
25 knots until early morning. a chance of snow showers until
early morning. waves 8 to 12 feet. waves occasionally around
15 feet. 
.saturday...southwest winds 15 to 20 knots veering to the west
early in the evening...then becoming northwest 10 to 15 knots in
the late evening and early morning. a chance of snow showers.
waves 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kmkx 021455
glflm 
expires:202512022215;;883846

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 am cst tue dec 2 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

high pressure around 30.1 inches well to the south of the region
will bring light west winds today, becoming southwest and
increasing by early this evening.

a strong cold front along a low pressure trough around 29.8 
inches will then cross lake michigan wednesday. gusty southwest 
winds are expected ahead of this front early wednesday morning, 
with gusty northwest winds behind it wednesday afternoon and 
night. winds will remain just below gales for most the lake, 
though a brief period of low end gales is possible wednesday night
over the far northern part of the lake. very cold air with this 
system will result in a risk for freezing spray wednesday night 
and thursday.

light winds are expected thursday with the influence of high 
pressure around 30.4 inches over illinois and indiana. another 
period of elevated southwest winds will occur thursday night into 
friday, as another low pressure trough around 29.8 inches crosses
the upper great lakes region.


lmz261-362-364-366-563-565-567-868-022215-
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-
855 am cst tue dec 2 2025

sheboygan wi to pentwater mi north...

.rest of today...west winds 5 to 10 kt increasing to 10 to 15 kt
late this morning, then becoming southwest 10 to 20 kt early this
afternoon increasing to 15 to 25 kt late. waves 1 to 3 ft
building to 3 to 5 ft. 
.tonight...southwest winds 15 to 25 kt increasing to 30 kt. snow
likely overnight. waves 4 to 6 ft occasionally to 8 ft building
to 6 to 9 ft occasionally to 12 ft. 
.wednesday...west winds to 30 kt becoming northwest. snow likely
in the morning, then chance of snow in the afternoon. waves 7 to
10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally
to 10 ft. 
.wednesday night...northwest winds to 30 kt. a few gales to 35 
kt. freezing spray. chance of snow. waves 7 to 10 ft occasionally 
to 13 ft. 
.thursday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray in the morning. chance of snow in the morning.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.thursday night...southwest winds to 30 kt. a few gales to 35 kt.
freezing spray. chance of snow. waves 6 to 9 ft occasionally to 
12 ft building to 8 to 11 ft occasionally to 14 ft. 
.friday...southwest winds to 30 kt. chance of snow. waves 8 to
11 ft occasionally to 14 ft. 
.saturday...northwest winds 10 to 20 kt. chance of snow. waves
3 to 5 ft subsiding to 2 to 4 ft.  

$$

fzus63 kmkx 021455
glflm 
expires:202512022215;;883847

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 am cst tue dec 2 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

high pressure around 30.1 inches well to the south of the region
will bring light west winds today, becoming southwest and
increasing by early this evening.

a strong cold front along a low pressure trough around 29.8 
inches will then cross lake michigan wednesday. gusty southwest 
winds are expected ahead of this front early wednesday morning, 
with gusty northwest winds behind it wednesday afternoon and 
night. winds will remain just below gales for most the lake, 
though a brief period of low end gales is possible wednesday night
over the far northern part of the lake. very cold air with this 
system will result in a risk for freezing spray wednesday night 
and thursday.

light winds are expected thursday with the influence of high 
pressure around 30.4 inches over illinois and indiana. another 
period of elevated southwest winds will occur thursday night into 
friday, as another low pressure trough around 29.8 inches crosses
the upper great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-022215-
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-
855 am cst tue dec 2 2025

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 15 kt becoming southwest
10 to 20 kt. patchy dense fog through mid morning. waves 2 to
4 ft. 
.tonight...southwest winds 10 to 20 kt increasing to 30 kt.
chance of snow overnight. waves 2 to 4 ft building to 7 to 10 ft
occasionally to 13 ft. 
.wednesday...southwest winds to 30 kt becoming northwest. snow
likely in the morning, then snow in the afternoon. waves 8 to
12 ft occasionally to 16 ft subsiding to 6 to 9 ft occasionally
to 12 ft. 
.wednesday night...northwest winds to 30 kt. chance of snow in
the evening. freezing spray overnight. waves 8 to 12 ft
occasionally to 16 ft. 
.thursday...northwest winds 15 to 25 kt becoming west 10 to
20 kt. freezing spray in the morning. waves 8 to 11 ft
occasionally to 14 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.thursday night...southwest winds to 30 kt. waves 4 to 7 ft
occasionally to 9 ft building to 8 to 11 ft occasionally to
14 ft. 
.friday...southwest winds to 30 kt. chance of snow. waves 8 to
11 ft occasionally to 14 ft. 
.saturday...northwest 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 021500
glfls 
expires:202512022100;;884107

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 2 2025

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 weak 29.9 inch trough is over lake superior this morning. this 
trough will be absorbed by a 29.7 inch trough associated with a 29.5 
inch low over hudson bay today. the trough exits the lake to the 
east by wednesday morning. in its wake, a 30.5 inch high builds over 
the dakotas wednesday evening. as this high shifts into the lower 
midwest thursday, it will pass a 30.2 inch ridge over the lake. 
meanwhile, a 29.7 inch low will move over lake winnipeg before 
passing north of the lake overnight into friday at 29.6 inches. 
friday night, another 29.7 inch trough will pass over the lake. over 
the weekend, lake superior will be between a 30.3 inch high over 
saskatchewan and a low of 29.6 inches over quebec, with the high 
approaching lake superior late in the weekend to early next week.



lsz162-022100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est tue dec 2 2025 /900 am cst tue dec 2 2025/

.rest of today...southwest winds 10 to 20 knots increasing to
20 to 30 knots. a chance of snow showers. waves 2 to 4 feet
building to 4 to 7 feet occasionally to 9 feet. 
.tonight...southwest winds 20 to 30 knots becoming west 15 to
25 knots by midnight, then veering northwest late. snow showers
likely in the evening, then a chance of snow showers after
midnight. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 20 to 30 knots. a slight chance of
snow showers in the morning. freezing spray in the afternoon.
waves building to 4 to 7 feet occasionally to 9 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. freezing spray in the evening. a
slight chance of snow showers in the evening. waves subsiding to
2 to 4 feet. 
.thursday...west winds 15 to 25 knots becoming southwest gales to
35 knots in the afternoon. a slight chance of snow showers in the
afternoon. waves subsiding to 1 to 3 feet, then building to 4 to
7 feet occasionally to 9 feet. 
.thursday night...southwest gales to 35 knots becoming west 20 to
30 knots after midnight. freezing spray in the evening. snow
showers likely in the evening, then a chance of snow showers
after midnight. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday...west winds 10 to 20 knots veering northwest. a chance
of snow showers. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 
.saturday...northwest winds 10 to 20 knots veering north. waves
subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 021500
glfls 
expires:202512022100;;884108

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 2 2025

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 weak 29.9 inch trough is over lake superior this morning. this 
trough will be absorbed by a 29.7 inch trough associated with a 29.5 
inch low over hudson bay today. the trough exits the lake to the 
east by wednesday morning. in its wake, a 30.5 inch high builds over 
the dakotas wednesday evening. as this high shifts into the lower 
midwest thursday, it will pass a 30.2 inch ridge over the lake. 
meanwhile, a 29.7 inch low will move over lake winnipeg before 
passing north of the lake overnight into friday at 29.6 inches. 
friday night, another 29.7 inch trough will pass over the lake. over 
the weekend, lake superior will be between a 30.3 inch high over 
saskatchewan and a low of 29.6 inches over quebec, with the high 
approaching lake superior late in the weekend to early next week.



lsz263-022100-
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 tue dec 2 2025

.rest of today...southwest winds 15 to 25 knots. a chance of snow
showers. waves 3 to 5 feet occasionally to 7 feet building to
4 to 7 feet occasionally to 9 feet. 
.tonight...southwest winds 15 to 25 knots veering northwest late.
snow showers likely. waves building to 5 to 8 feet occasionally
to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
.wednesday...northwest winds 20 to 30 knots. freezing spray. a
chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.wednesday night...northwest winds 20 to 30 knots. freezing
spray. a slight chance of snow showers. waves building to 6 to
9 feet occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds 15 to 25 knots becoming southwest gales to
35 knots in the afternoon. freezing spray in the morning. a
slight chance of snow showers in the afternoon. waves subsiding
to 2 to 4 feet, then building to 4 to 7 feet occasionally to
9 feet. 
.thursday night...southwest gales to 40 knots becoming west 20 to
30 knots after midnight. freezing spray in the evening. snow
showers likely in the evening, then a chance of snow showers
after midnight. waves building to 6 to 9 feet occasionally to
11 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. 
.friday...west winds 15 to 25 knots veering northwest. a chance
of snow showers. waves subsiding to 2 to 4 feet. 
.saturday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 021500
glfls 
expires:202512022100;;884109

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 2 2025

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 weak 29.9 inch trough is over lake superior this morning. this 
trough will be absorbed by a 29.7 inch trough associated with a 29.5 
inch low over hudson bay today. the trough exits the lake to the 
east by wednesday morning. in its wake, a 30.5 inch high builds over 
the dakotas wednesday evening. as this high shifts into the lower 
midwest thursday, it will pass a 30.2 inch ridge over the lake. 
meanwhile, a 29.7 inch low will move over lake winnipeg before 
passing north of the lake overnight into friday at 29.6 inches. 
friday night, another 29.7 inch trough will pass over the lake. over 
the weekend, lake superior will be between a 30.3 inch high over 
saskatchewan and a low of 29.6 inches over quebec, with the high 
approaching lake superior late in the weekend to early next week.



lsz264-022100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est tue dec 2 2025

.rest of today...southwest winds 15 to 25 knots. a chance of snow
showers. waves 3 to 5 feet occasionally to 7 feet building to
4 to 7 feet occasionally to 9 feet. 
.tonight...southwest winds 15 to 25 knots veering northwest late.
snow showers likely. waves building to 4 to 8 feet occasionally
to 10 feet. 
.wednesday...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible. freezing spray. a chance of snow
showers. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest gales to 35 knots diminishing to
20 to 30 knots after midnight. freezing spray. a chance of snow
showers. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.thursday...northwest winds 15 to 25 knots becoming southwest
20 to 30 knots in the afternoon. freezing spray in the morning. a
slight chance of snow showers in the afternoon. waves subsiding
to 2 to 4 feet, then building to 4 to 7 feet occasionally to
9 feet. 
.thursday night...southwest winds 20 to 30 knots veering west
after midnight. freezing spray in the evening. snow showers
likely in the evening, then a chance of snow showers after
midnight. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.friday...west winds 15 to 25 knots veering northwest. a chance
of snow showers. waves subsiding to 2 to 4 feet, then building to
3 to 6 feet occasionally to 8 feet. 
.saturday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 021500
glfls 
expires:202512022100;;884110

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 2 2025

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 weak 29.9 inch trough is over lake superior this morning. this 
trough will be absorbed by a 29.7 inch trough associated with a 29.5 
inch low over hudson bay today. the trough exits the lake to the 
east by wednesday morning. in its wake, a 30.5 inch high builds over 
the dakotas wednesday evening. as this high shifts into the lower 
midwest thursday, it will pass a 30.2 inch ridge over the lake. 
meanwhile, a 29.7 inch low will move over lake winnipeg before 
passing north of the lake overnight into friday at 29.6 inches. 
friday night, another 29.7 inch trough will pass over the lake. over 
the weekend, lake superior will be between a 30.3 inch high over 
saskatchewan and a low of 29.6 inches over quebec, with the high 
approaching lake superior late in the weekend to early next week.



lsz265-022100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est tue dec 2 2025

.rest of today...southwest winds 15 to 25 knots. waves 2 to
4 feet subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.tonight...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight, then becoming west 20 to 30 knots late. a
chance of snow showers in the evening, then snow showers likely
after midnight. waves building to 3 to 6 feet occasionally to
8 feet. 
.wednesday...northwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 40 knots possible. snow
showers. freezing spray in the afternoon. waves building to 5 to
9 feet occasionally to 11 feet. 
.wednesday night...northwest gales to 40 knots. freezing spray.
snow showers in the evening. a chance of snow showers after
midnight. waves building to 5 to 9 feet occasionally to 11 feet. 
.thursday...northwest winds 20 to 30 knots backing southwest in
the afternoon. freezing spray in the morning. a chance of snow
showers. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.thursday night...southwest gales to 35 knots diminishing to
20 to 30 knots after midnight. snow showers likely. waves
building to 3 to 6 feet occasionally to 8 feet. 
.friday...west winds 15 to 25 knots. a chance of snow showers,
then snow showers likely. waves subsiding to 1 to 3 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of snow showers. waves subsiding to 1 to
3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 021500
glfls 
expires:202512022100;;884111

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 2 2025

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 weak 29.9 inch trough is over lake superior this morning. this 
trough will be absorbed by a 29.7 inch trough associated with a 29.5 
inch low over hudson bay today. the trough exits the lake to the 
east by wednesday morning. in its wake, a 30.5 inch high builds over 
the dakotas wednesday evening. as this high shifts into the lower 
midwest thursday, it will pass a 30.2 inch ridge over the lake. 
meanwhile, a 29.7 inch low will move over lake winnipeg before 
passing north of the lake overnight into friday at 29.6 inches. 
friday night, another 29.7 inch trough will pass over the lake. over 
the weekend, lake superior will be between a 30.3 inch high over 
saskatchewan and a low of 29.6 inches over quebec, with the high 
approaching lake superior late in the weekend to early next week.



lsz266-022100-
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 tue dec 2 2025

.rest of today...southwest winds 10 to 20 knots increasing to
15 to 25 knots. a slight chance of snow showers late in the
morning. waves 2 to 4 feet building to 3 to 5 feet occasionally
to 7 feet. 
.tonight...southwest winds 20 to 30 knots veering west late. a
chance of snow showers in the evening, then snow showers after
midnight. waves building to 4 to 8 feet occasionally to 10 feet. 
.wednesday...northwest winds to 30 knots with a few gale force
gusts to 40 knots possible. snow showers. freezing spray in the
afternoon. waves building to 8 to 12 feet occasionally to
15 feet. 
.wednesday night...northwest gales to 40 knots. freezing spray.
snow showers. waves subsiding to 7 to 10 feet occasionally to
13 feet, then building to 9 to 12 feet occasionally to 15 feet. 
.thursday...northwest winds 20 to 30 knots backing southwest in
the afternoon. freezing spray in the morning. snow showers in the
morning, then a chance of snow showers in the afternoon. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday night...southwest winds 20 to 30 knots. freezing spray.
snow showers. waves building to 5 to 9 feet occasionally to
11 feet. 
.friday...west winds 15 to 25 knots. a chance of snow showers,
then snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.saturday...northwest winds 15 to 25 knots. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 021500
glfls 
expires:202512022100;;884112

open lake forecast for lake superior
national weather service marquette mi
1000 am est tue dec 2 2025

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 weak 29.9 inch trough is over lake superior this morning. this 
trough will be absorbed by a 29.7 inch trough associated with a 29.5 
inch low over hudson bay today. the trough exits the lake to the 
east by wednesday morning. in its wake, a 30.5 inch high builds over 
the dakotas wednesday evening. as this high shifts into the lower 
midwest thursday, it will pass a 30.2 inch ridge over the lake. 
meanwhile, a 29.7 inch low will move over lake winnipeg before 
passing north of the lake overnight into friday at 29.6 inches. 
friday night, another 29.7 inch trough will pass over the lake. over 
the weekend, lake superior will be between a 30.3 inch high over 
saskatchewan and a low of 29.6 inches over quebec, with the high 
approaching lake superior late in the weekend to early next week.



lsz267-022100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est tue dec 2 2025

.rest of today...southwest winds 15 to 25 knots increasing to
20 to 30 knots by mid afternoon. a slight chance of snow showers
late in the morning. waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...southwest winds 20 to 30 knots. a chance of snow
showers in the evening, then snow showers after midnight. waves
building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...west winds to 30 knots with a few gale force gusts
to 35 knots possible veering northwest. snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet, then building to
9 to 12 feet occasionally to 15 feet. 
.wednesday night...northwest gales to 35 knots. freezing spray.
snow showers. waves subsiding to 7 to 10 feet occasionally to
13 feet, then building to 8 to 11 feet occasionally to 14 feet. 
.thursday...northwest winds 20 to 30 knots backing west in the
afternoon. freezing spray in the morning. snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. freezing spray. snow showers.
waves building to 5 to 9 feet occasionally to 11 feet. 
.friday...southwest winds 20 to 30 knots veering west. snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...northwest winds 20 to 30 knots becoming north 15 to
25 knots. snow showers likely. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

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