fzus63 kdtx 212036
glflh 
expires:202512220445;;988157

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm est sun dec 21 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, 30.50 inches, will move through the
ohio valley today. wind gusts continue to decrease slightly
across lake huron as a result. departure of high pressure late
tonight and overnight will back wind direction to the southwest,
bringing some localized higher gust potential for central lake
huron.


lhz361-220445-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
336 pm est sun dec 21 2025

.tonight...west winds 15 to 20 knots becoming southwest 10 to
15 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet early in the morning. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. waves 1 to 3 feet. 
.monday night...south winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. a chance of rain and snow. waves 1 to
3 feet building to 2 to 4 feet in the late evening and overnight.
.tuesday...south winds 5 to 10 knots becoming west 15 to 20 knots
in the late morning and early afternoon...then increasing to
20 to 25 knots with gusts to around 30 knots early in the
afternoon. waves 3 to 5 feet building to 5 to 7 feet early in the
afternoon. waves occasionally around 10 feet. 
.tuesday night...northwest winds to 30 knots with gusts to
35 knot gales decreasing to 10 to 15 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...north winds 5 to 10 knots veering to the southeast.
waves 1 to 3 feet. 
.thursday...south winds 5 to 10 knots backing to the east in the
late morning and early afternoon...then increasing to 10 to
15 knots . a chance of snow by midnight. waves 1 to 3 feet
building to 3 to 5 feet . 
.friday...northeast winds 15 to 20 knots decreasing to 10 to
15 knots . a chance of snow and rain early in the morning...then
a chance of snow. waves 4 to 6 feet subsiding to 1 to 3 feet .
waves occasionally around 8 feet. 


$$

fzus63 kdtx 212036
glflh 
expires:202512220445;;988158

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm est sun dec 21 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, 30.50 inches, will move through the
ohio valley today. wind gusts continue to decrease slightly
across lake huron as a result. departure of high pressure late
tonight and overnight will back wind direction to the southwest,
bringing some localized higher gust potential for central lake
huron.


lhz362-363-220445-
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-
336 pm est sun dec 21 2025

.tonight...west winds 15 to 20 knots becoming southwest 10 to
15 knots by midnight...then increasing to 15 to 20 knots early in
the morning. waves 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots becoming south 10 to
15 knots late in the afternoon. scattered snow showers in the
afternoon. waves 4 to 6 feet. waves occasionally around 8 feet. 
.monday night...south winds 10 to 15 knots increasing to 15 to
20 knots by midnight...then decreasing to 10 to 15 knots after
midnight. a chance of rain and snow. waves 3 to 5 feet. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots with gusts to around 30 knots early in the afternoon.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday night...northwest winds to 30 knots with gusts to
35 knot gales decreasing to 15 to 20 knots. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.wednesday...northwest winds 5 to 10 knots becoming southeast
10 to 15 knots late in the morning...then veering to the south
late in the evening. waves 4 to 6 feet subsiding to 2 to 4 feet.
waves occasionally around 8 feet. 
.thursday...south winds 5 to 10 knots becoming east 10 to
15 knots. a chance of rain and snow by midnight. waves 1 to
3 feet building to 3 to 5 feet . 
.friday...northeast winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. a chance of rain and snow. waves 3 to
5 feet. 


$$

fzus63 kdtx 212036
glflh 
expires:202512220445;;988159

open lake forecast for lake huron
national weather service detroit/pontiac mi
336 pm est sun dec 21 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, 30.50 inches, will move through the
ohio valley today. wind gusts continue to decrease slightly
across lake huron as a result. departure of high pressure late
tonight and overnight will back wind direction to the southwest,
bringing some localized higher gust potential for central lake
huron.


lhz462>464-220445-
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-
336 pm est sun dec 21 2025

.tonight...southwest winds 10 to 15 knots. waves 3 to 5 feet. 
.monday...southwest winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then becoming south 10 to 15 knots
in the afternoon. scattered snow showers in the afternoon. waves
2 to 4 feet. 
.monday night...south winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. snow and rain likely in the evening...
then snow likely and a chance of rain after midnight. waves 3 to
5 feet. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots early in the afternoon. waves 2 to 4 feet. 
.tuesday night...northwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.wednesday...northwest winds 5 to 10 knots veering to the
southeast late in the morning...then becoming south 10 to
15 knots late in the afternoon. waves 3 to 5 feet subsiding to
2 to 4 feet late in the afternoon. 
.thursday...south winds 5 to 10 knots backing to the southeast in
the late morning and early afternoon...then increasing to 10 to
15 knots . a chance of rain by midnight. waves 1 to 3 feet
building to 2 to 4 feet by midnight. 
.friday...north winds 10 to 15 knots increasing to 15 to 20 knots
until early evening...then becoming northeast 10 to 15 knots by
midnight. a chance of rain and snow until afternoon...then a
chance of rain . waves 3 to 5 feet. 


$$

fzus63 kmkx 212039
glflm 
expires:202512220415;;988392

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
239 pm cst sun dec 21 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 30.4 inches will move to the southeast 
tonight, as broad low pressure around 29.8 inches moves into the 
northern great plains. this will result in increasing southwest 
winds across the waters. light snow should move into northern and 
central portions of the lake later tonight into monday.

winds will shift south and continue to increase monday, as the 
low slowly moves east. gusts to 30 knots are possible over 
southern lake michigan, with gales not expected at this time.

southwest winds will turn west later monday night into tuesday, 
as low pressure around 29.8 inches moves into ontario. winds will 
shift out of the northwest by tuesday afternoon, as high pressure 
around 30.4 inches moves into the northern great plains. winds 
will subside tuesday night, as the high crosses lake michigan. 
these winds will shift out of the southeast wednesday, as the high
moves east of the region.


lmz261-362-364-366-563-565-567-868-220415-
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-
239 pm cst sun dec 21 2025

sheboygan wi to pentwater mi north...

.tonight...southwest winds 10 to 20 kt increasing to 30 kt.
slight chance of snow overnight. waves 2 to 4 ft building to 4 to
6 ft occasionally to 8 ft. 
.monday...southwest winds to 30 kt becoming south 15 to 25 kt.
snow and rain likely in the morning, then chance of rain and snow
in the afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.monday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.tuesday...west winds 15 to 25 kt becoming northwest. waves 3 to
5 ft. 
.tuesday night...northwest winds 15 to 25 kt becoming northeast
10 to 15 kt overnight. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...southeast winds 10 to 20 kt becoming south. waves
2 to 4 ft. 
.wednesday night...south winds 10 to 15 kt backing to east 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...east winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 1 to 3 ft. 
.friday...northeast winds 10 to 20 kt. chance of snow and rain.
waves 2 to 4 ft.  

$$

fzus63 kmkx 212039
glflm 
expires:202512220415;;988393

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
239 pm cst sun dec 21 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 30.4 inches will move to the southeast 
tonight, as broad low pressure around 29.8 inches moves into the 
northern great plains. this will result in increasing southwest 
winds across the waters. light snow should move into northern and 
central portions of the lake later tonight into monday.

winds will shift south and continue to increase monday, as the 
low slowly moves east. gusts to 30 knots are possible over 
southern lake michigan, with gales not expected at this time.

southwest winds will turn west later monday night into tuesday, 
as low pressure around 29.8 inches moves into ontario. winds will 
shift out of the northwest by tuesday afternoon, as high pressure 
around 30.4 inches moves into the northern great plains. winds 
will subside tuesday night, as the high crosses lake michigan. 
these winds will shift out of the southeast wednesday, as the high
moves east of the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-220415-
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-
239 pm cst sun dec 21 2025

sheboygan wi to pentwater mi south...

.tonight...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
slight chance of snow overnight. waves 1 to 3 ft building to 4 to
6 ft occasionally to 8 ft. 
.monday...south winds 15 to 25 kt. chance of snow and slight
chance of rain. waves 4 to 6 ft occasionally to 8 ft. 
.monday night...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.tuesday...west winds 10 to 20 kt becoming northwest. waves 3 to
5 ft. 
.tuesday night...northwest winds 10 to 15 kt veering to
northeast. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.wednesday...southeast winds 10 to 20 kt. chance of rain in the
afternoon. waves 3 to 5 ft. 
.wednesday night...south winds 10 to 15 kt becoming southeast
5 to 10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...southeast winds 10 to 15 kt becoming south. waves
1 to 3 ft. 
.friday...north winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 212101
glfls 
expires:202512220900;;988972

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun dec 21 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 30.3 inch ridging will continue tonight, but weaken monday when a 
low from the plains organizes and lifts northeast through ontario. 
by tuesday this 29.8 inch low will press east north of thunder bay. 
afterwards, a 30.4 inch high pressure moves over lake superior from 
the canadian prairies tuesday night with weak troughing of 30.0 
inches moving over the lake late wednesday as the high shifts east. 
this will be followed by low pressure of at least 29.6 inches moving 
across the great lakes basin late thursday into friday.



lsz162-220900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est sun dec 21 2025 /300 pm cst sun dec 21 2025/

.late this afternoon...southwest winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...southwest winds 5 to 15 knots backing south late.
waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots backing east by late
morning, then increasing to 10 to 20 knots by mid afternoon.
waves calm to 2 feet. 
.monday night...east winds 10 to 20 knots veering southwest by
midnight, then veering west late. a chance of snow. waves
building to 1 to 3 feet. 
.tuesday...west winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 1 to 3 feet. 
.tuesday night...north winds 5 to 15 knots veering southeast
after midnight. waves subsiding to calm to 2 feet. 
.wednesday...south winds 5 to 15 knots veering southwest in the
afternoon. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.thursday...east winds 10 to 20 knots backing northeast. a chance
of snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.friday...northeast winds 10 to 20 knots veering southeast. a
chance of snow showers. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 212101
glfls 
expires:202512220900;;988973

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun dec 21 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 30.3 inch ridging will continue tonight, but weaken monday when a 
low from the plains organizes and lifts northeast through ontario. 
by tuesday this 29.8 inch low will press east north of thunder bay. 
afterwards, a 30.4 inch high pressure moves over lake superior from 
the canadian prairies tuesday night with weak troughing of 30.0 
inches moving over the lake late wednesday as the high shifts east. 
this will be followed by low pressure of at least 29.6 inches moving 
across the great lakes basin late thursday into friday.



lsz263-220900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 pm est sun dec 21 2025

.late this afternoon...southwest winds 5 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.monday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots veering south by
midnight, then becoming southwest 15 to 25 knots late. a chance
of snow. a chance of rain after midnight. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.tuesday...west gales to 35 knots. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...north winds 10 to 20 knots becoming southeast
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...south winds 10 to 20 knots veering southwest in the
afternoon. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...east winds 15 to 25 knots backing northeast. a chance
of snow showers. waves building to 5 to 8 feet occasionally to
10 feet. 
.friday...northeast winds 15 to 25 knots becoming southeast 10 to
20 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 212101
glfls 
expires:202512220900;;988974

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun dec 21 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 30.3 inch ridging will continue tonight, but weaken monday when a 
low from the plains organizes and lifts northeast through ontario. 
by tuesday this 29.8 inch low will press east north of thunder bay. 
afterwards, a 30.4 inch high pressure moves over lake superior from 
the canadian prairies tuesday night with weak troughing of 30.0 
inches moving over the lake late wednesday as the high shifts east. 
this will be followed by low pressure of at least 29.6 inches moving 
across the great lakes basin late thursday into friday.



lsz264-220900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est sun dec 21 2025

.late this afternoon...west winds 5 to 15 knots. isolated snow
showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 5 to 15 knots. isolated snow showers in the
evening. waves subsiding to calm to 2 feet. 
.monday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots veering south by
midnight, then becoming southwest 15 to 25 knots late. a chance
of snow. a chance of rain after midnight. waves building to 2 to
4 feet. 
.tuesday...west gales to 35 knots veering northwest in the
afternoon. waves building to 6 to 10 feet occasionally to
13 feet. 
.tuesday night...north winds 20 to 30 knots becoming southeast
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...south winds 10 to 20 knots veering southwest in the
afternoon. waves building to 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots veering northeast
after midnight. waves 1 to 3 feet. 
.thursday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.friday...northeast winds 15 to 25 knots becoming southeast 10 to
20 knots. freezing spray. a chance of snow showers. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 212101
glfls 
expires:202512220900;;988975

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun dec 21 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 30.3 inch ridging will continue tonight, but weaken monday when a 
low from the plains organizes and lifts northeast through ontario. 
by tuesday this 29.8 inch low will press east north of thunder bay. 
afterwards, a 30.4 inch high pressure moves over lake superior from 
the canadian prairies tuesday night with weak troughing of 30.0 
inches moving over the lake late wednesday as the high shifts east. 
this will be followed by low pressure of at least 29.6 inches moving 
across the great lakes basin late thursday into friday.



lsz265-220900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est sun dec 21 2025

.late this afternoon...southwest winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...southwest winds 10 to 20 knots veering west by
midnight, then backing southwest late. waves subsiding to calm to
2 feet. 
.monday...southwest winds 10 to 20 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering southwest
late. a chance of snow. waves calm to 2 feet. 
.tuesday...west gales to 40 knots. waves building to 6 to 10 feet
occasionally to 13 feet. 
.tuesday night...northwest winds 20 to 30 knots becoming north
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...south winds 10 to 20 knots. waves subsiding to calm
to 2 feet, then building to 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves calm to 2 feet. 
.thursday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.friday...northeast winds 15 to 25 knots veering southeast. a
chance of snow showers. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 212101
glfls 
expires:202512220900;;988976

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun dec 21 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 30.3 inch ridging will continue tonight, but weaken monday when a 
low from the plains organizes and lifts northeast through ontario. 
by tuesday this 29.8 inch low will press east north of thunder bay. 
afterwards, a 30.4 inch high pressure moves over lake superior from 
the canadian prairies tuesday night with weak troughing of 30.0 
inches moving over the lake late wednesday as the high shifts east. 
this will be followed by low pressure of at least 29.6 inches moving 
across the great lakes basin late thursday into friday.



lsz266-220900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 pm est sun dec 21 2025

.late this afternoon...west winds 15 to 25 knots. isolated snow
showers. waves 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. isolated snow showers in the evening. waves
subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots backing south. waves
subsiding to calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering southwest
late. a chance of snow. a chance of rain showers after midnight.
waves building to 2 to 4 feet. 
.tuesday...west gales to 40 knots veering northwest in the
afternoon. a slight chance of snow showers in the morning. waves
building to 10 to 14 feet occasionally to 18 feet. 
.tuesday night...northwest gales to 40 knots becoming north 10 to
20 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...southwest winds 10 to 20 knots backing
northeast after midnight. waves subsiding to 1 to 3 feet. 
.thursday...east winds 15 to 25 knots becoming northeast 20 to
30 knots. a chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.friday...northeast winds 15 to 25 knots veering southeast. a
chance of snow showers. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 212101
glfls 
expires:202512220900;;988977

open lake forecast for lake superior
national weather service marquette mi
400 pm est sun dec 21 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 30.3 inch ridging will continue tonight, but weaken monday when a 
low from the plains organizes and lifts northeast through ontario. 
by tuesday this 29.8 inch low will press east north of thunder bay. 
afterwards, a 30.4 inch high pressure moves over lake superior from 
the canadian prairies tuesday night with weak troughing of 30.0 
inches moving over the lake late wednesday as the high shifts east. 
this will be followed by low pressure of at least 29.6 inches moving 
across the great lakes basin late thursday into friday.



lsz267-220900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est sun dec 21 2025

.late this afternoon...west winds 15 to 25 knots. scattered snow
showers. waves 3 to 5 feet occasionally to 7 feet. 
.tonight...southwest winds 15 to 25 knots diminishing to 10 to
20 knots late. isolated snow showers in the evening. waves
subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots backing south by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots becoming south
15 to 25 knots late. a chance of snow. waves building to 1 to
3 feet. 
.tuesday...west gales to 35 knots becoming northwest gales to
40 knots in the afternoon. a chance of snow showers. a slight
chance of rain showers in the afternoon. waves building to 10 to
14 feet occasionally to 18 feet. 
.tuesday night...northwest gales to 35 knots becoming north 10 to
20 knots after midnight. waves subsiding to 2 to 4 feet. 
.wednesday...south winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.wednesday night...south winds 10 to 20 knots backing east after
midnight. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday...southeast winds 10 to 20 knots becoming northeast
15 to 25 knots. a chance of snow showers. waves building to 4 to
7 feet occasionally to 9 feet. 
.friday...northeast winds 15 to 25 knots veering southeast. a
chance of snow showers. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$