fzus63 kdtx 252034
glflh 
expires:202512260500;;216883

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm est thu dec 25 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, moves east across
northern ontario this evening. weaker wind will persist today
before strengthening out of the east-southeast on friday as a low
pressure system, 29.60 inches, tracks east across the southern
great lakes. a deeper low moves into the region sunday night,
bringing potential for gales on monday.


lhz361-260500-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
334 pm est thu dec 25 2025

.tonight...east winds 15 to 20 knots becoming southeast to
30 knots. snow likely after midnight. waves 3 to 5 feet building
to 6 to 9 feet after midnight. waves occasionally around 12 feet.
.friday...southeast winds to 30 knots decreasing to 15 to
20 knots. snow. waves 8 to 12 feet. waves occasionally around
15 feet. 
.friday night...east winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.saturday...east winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. waves 1 to 3 feet. 
.saturday night...southeast winds 10 to 15 knots. waves 3 to
5 feet. 
.sunday...southeast winds 10 to 15 knots becoming northwest 15 to
20 knots with gusts to around 30 knots late in the evening. rain
likely. rain and snow late in the afternoon. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.monday...northwest winds to 30 knots increasing to 35 knot gales
early in the evening...then decreasing to 30 knots by midnight.
gusts to 40 knot gales. snow likely. a chance of snow by
midnight. waves 10 to 14 feet. waves occasionally around 18 feet.
a gale warning may be needed. 
.tuesday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 15 to 20 knots. a chance of snow. waves 8 
to 12 feet subsiding to 5 to 7 feet. waves occasionally around 15 
feet. 


$$

fzus63 kdtx 252034
glflh 
expires:202512260500;;216884

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm est thu dec 25 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, moves east across
northern ontario this evening. weaker wind will persist today
before strengthening out of the east-southeast on friday as a low
pressure system, 29.60 inches, tracks east across the southern
great lakes. a deeper low moves into the region sunday night,
bringing potential for gales on monday.


lhz362-363-260500-
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-
334 pm est thu dec 25 2025

.tonight...east winds 15 to 20 knots increasing to 20 to 25 knots
after midnight. a chance of snow after midnight. waves 5 to
7 feet building to 8 to 12 feet early in the morning. waves
occasionally around 15 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the afternoon.
snow. waves 8 to 12 feet. waves occasionally around 15 feet. 
.friday night...southeast winds 10 to 15 knots backing to the
northeast by midnight...then decreasing to 5 to 10 knots after
midnight. waves 4 to 6 feet. waves occasionally around 8 feet. 
.saturday...east winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. waves 1 to 3 feet. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. waves 3 to
5 feet. 
.sunday...southeast winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming northwest 15 to
20 knots with gusts to around 30 knots late in the evening. rain
likely. a chance of snow late in the evening. waves 3 to 5 feet
building to 6 to 9 feet late in the evening. waves occasionally
around 12 feet. 
.monday...northwest winds to 30 knots with gusts to 35 knot gales
increasing to 40 knot gales. snow likely early in the morning. a 
chance of snow. waves 12 to 16 feet building to 18 to 23 feet. 
waves occasionally around 28 feet. a gale warning may be needed. 
.tuesday...northwest winds to 30 knots with gusts to 35 knot
gales becoming west 20 to 25 knots with gusts to around 30 knots.
a chance of snow. waves 12 to 16 feet subsiding to 6 to 9 feet. 
waves occasionally around 20 feet. 


$$

fzus63 kdtx 252034
glflh 
expires:202512260500;;216885

open lake forecast for lake huron
national weather service detroit/pontiac mi
334 pm est thu dec 25 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, moves east across
northern ontario this evening. weaker wind will persist today
before strengthening out of the east-southeast on friday as a low
pressure system, 29.60 inches, tracks east across the southern
great lakes. a deeper low moves into the region sunday night,
bringing potential for gales on monday.


lhz462>464-260500-
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-
334 pm est thu dec 25 2025

.tonight...northeast winds 15 to 20 knots veering to the east
after midnight. waves 4 to 6 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots late in the afternoon. snow
and sleet in the morning...then sleet...freezing rain and snow in
the afternoon. waves 6 to 9 feet. waves occasionally around
12 feet. 
.friday night...east winds 5 to 10 knots. waves 3 to 5 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.saturday...northeast winds 5 to 10 knots veering to the
southeast early in the afternoon. waves 2 feet or less. 
.saturday night...southeast winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. waves 1 to
3 feet building to 3 to 5 feet in the late evening and overnight.
.sunday...southeast winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming west 15 to 20 knots
with gusts to around 30 knots late in the evening. rain likely in
the morning...then rain. snow likely late in the evening. waves
3 to 5 feet building to 5 to 7 feet late in the evening. waves
occasionally around 10 feet. 
.monday...northwest winds to 30 knots with gusts to 35 knot gales
increasing to 40 knot gales. rain likely and a chance of snow 
early in the morning. snow likely until early evening...then a 
chance of snow by midnight. waves 12 to 16 feet building to 18 to 
23 feet. waves occasionally around 28 feet. a gale warning may be 
needed. 
.tuesday...northwest winds to 30 knots with gusts to 40 knot
gales becoming west 20 to 25 knots with gusts to 35 knot gales. a
chance of snow. waves 12 to 16 feet subsiding to 6 to 9 feet. 
waves occasionally around 20 feet. 


$$

fzus63 kmkx 252030
glflm 
expires:202512260415;;216758

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
230 pm cst thu dec 25 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...

modest northeast winds shifting easterly toward evening as high 
pressure of 30.5 inches moves east across northern ontario. the 
high will then move across quebec tonight into friday morning, 
while low pressure of 29.7 inches moves across northern illinois 
and the northern ohio valley. this will generate breezy southeast 
winds across the entire lake but remaining below gale force. much 
lighter and variable winds will then take hold later on friday 
into friday night. 

modest southeast winds will then return for saturday through 
sunday morning as low pressure organizes over the central great 
plains and moves to northeast illinois by noon sunday as a 29.7 
inch low pressure area. the low will then deepen to 29.2 inches by
monday morning over southern ontario, reaching southern quebec at
29.0 inches later in the day. thus northwest gales are looking 
likely sunday night through monday evening over lake michigan. 
much colder air will also pose a risk for freezing spray during 
the period of gales.


lmz261-362-364-366-563-565-567-868-260415-
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-
230 pm cst thu dec 25 2025

sheboygan wi to pentwater mi north...

.tonight...southeast winds 15 to 25 kt increasing to 30 kt.
slight chance of snow this evening, then rain likely with
possible freezing rain and snow overnight. waves 4 to 6 ft
occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft.
.friday...southeast winds to 30 kt diminishing to 15 to 25 kt
late in the morning, then diminishing to 10 to 20 kt early in the
afternoon becoming northeast 10 to 15 kt late. patchy fog. rain,
snow, light sleet and light freezing rain in the morning, then
slight chance of light freezing rain in the afternoon. waves 5 to
8 ft occasionally to 10 ft subsiding to 2 to 4 ft. 
.friday night...northeast winds 5 to 10 kt veering to east. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 20 kt. waves 1 to 3 ft building
to 3 to 5 ft. 
.saturday night...southeast winds 10 to 20 kt. chance of rain and
light freezing rain overnight. waves 4 to 6 ft occasionally to
8 ft. 
.sunday...southeast winds 10 to 15 kt backing to north 15 to
25 kt in the afternoon. chance of rain in the morning, then rain
likely in the afternoon. waves 3 to 5 ft. 
.sunday night...north gales to 35 kt becoming northwest gales to
45 kt. freezing spray. snow and rain likely. waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to
18 ft. 
.monday...northwest gales to 45 kt. freezing spray. chance of
snow. waves 12 to 16 ft occasionally to 21 ft. 
.tuesday...west winds to 30 kt. chance of snow. waves 6 to 9 ft
occasionally to 12 ft.  

$$

fzus63 kmkx 252030
glflm 
expires:202512260415;;216759

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
230 pm cst thu dec 25 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...

modest northeast winds shifting easterly toward evening as high 
pressure of 30.5 inches moves east across northern ontario. the 
high will then move across quebec tonight into friday morning, 
while low pressure of 29.7 inches moves across northern illinois 
and the northern ohio valley. this will generate breezy southeast 
winds across the entire lake but remaining below gale force. much 
lighter and variable winds will then take hold later on friday 
into friday night. 

modest southeast winds will then return for saturday through 
sunday morning as low pressure organizes over the central great 
plains and moves to northeast illinois by noon sunday as a 29.7 
inch low pressure area. the low will then deepen to 29.2 inches by
monday morning over southern ontario, reaching southern quebec at
29.0 inches later in the day. thus northwest gales are looking 
likely sunday night through monday evening over lake michigan. 
much colder air will also pose a risk for freezing spray during 
the period of gales.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260415-
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-
230 pm cst thu dec 25 2025

sheboygan wi to pentwater mi south...

.tonight...east winds to 30 kt becoming southeast. rain
overnight. waves 6 to 9 ft occasionally to 12 ft. 
.friday...southeast winds to 30 kt becoming south 10 to 20 kt
late in the morning, then veering to northwest early in the
afternoon becoming northwest 10 to 20 kt late. chance of rain in
the morning. patchy fog. waves 5 to 8 ft occasionally to 10 ft
subsiding to 2 to 4 ft. 
.friday night...northwest winds 10 to 15 kt veering to northeast
5 to 10 kt. waves 1 to 3 ft. 
.saturday...southeast winds 10 to 20 kt. waves 1 to 3 ft building
to 3 to 5 ft. 
.saturday night...southeast winds 10 to 20 kt. chance of rain
overnight. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...south winds 10 to 15 kt veering to northwest 15 to
25 kt in the afternoon. chance of rain in the morning, then rain
likely in the afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...northwest gales to 35 kt increasing to gales to
45 kt. freezing spray. rain likely with a chance of snow. waves
8 to 11 ft occasionally to 14 ft building to 12 to 16 ft
occasionally to 21 ft. 
.monday...northwest gales to 45 kt increasing to storm force
winds to 50 kt. freezing spray. chance of snow. waves 15 to 20 ft
occasionally to 26 ft. 
.tuesday...west winds to 30 kt. waves 8 to 11 ft occasionally to
14 ft subsiding to 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmqt 252101
glfls 
expires:202512260900;;217893

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 25 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...

30.4 inch ridging returns to lake superior today as a 30.5 inch high 
transits northern ontario. low pressure of 29.6 inches moves east 
along the southern end of the great lakes basin on friday. another 
low of 29.6 inches then lifts over lower michigan sunday while 
extending a 29.7 inch trough northward across the lake. by monday, a 
strong high pressure of at least 30.6 inches will reside over the 
great plains as the low deepens to 29.1 inches over quebec, yielding 
a tight pressure gradient across the great lakes.



lsz266-260900-
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 thu dec 25 2025

...gale warning in effect from 1 am est friday through friday
morning...

.late this afternoon...southeast winds 15 to 25 knots. a slight
chance of snow showers. waves 3 to 5 feet occasionally to 7 feet.
.tonight...southeast winds 20 to 30 knots increasing to gales to
35 knots by midnight. a chance of snow showers in the evening,
then snow showers after midnight. waves building to 10 to 14 feet
occasionally to 18 feet. 
.friday...south gales to 35 knots diminishing to 10 to 20 knots.
snow showers in the morning, then a slight chance of snow showers
and sleet in the afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday night...south winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.saturday...south winds 10 to 20 knots becoming southeast 20 to
30 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of rain showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...south winds 10 to 20 knots becoming northwest 20 to
30 knots in the afternoon. a chance of rain and snow showers.
waves subsiding to 2 to 4 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...north gales to 45 knots. snow showers. freezing
spray after midnight. waves building to 15 to 20 feet
occasionally to 25 feet. 
.monday...north storm force winds to 50 knots becoming northwest
gales to 45 knots. snow showers. heavy freezing spray. waves
subsiding to 10 to 14 feet occasionally to 18 feet. 
.tuesday...west gales to 35 knots becoming northwest gales to
40 knots. freezing spray. a chance of snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet, then building
to 9 to 12 feet occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 252101
glfls 
expires:202512260900;;217894

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 25 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...

30.4 inch ridging returns to lake superior today as a 30.5 inch high 
transits northern ontario. low pressure of 29.6 inches moves east 
along the southern end of the great lakes basin on friday. another 
low of 29.6 inches then lifts over lower michigan sunday while 
extending a 29.7 inch trough northward across the lake. by monday, a 
strong high pressure of at least 30.6 inches will reside over the 
great plains as the low deepens to 29.1 inches over quebec, yielding 
a tight pressure gradient across the great lakes.



lsz267-260900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est thu dec 25 2025

...gale warning in effect from 1 am est friday through friday
morning...

.late this afternoon...east winds 15 to 25 knots. a slight chance
of snow showers. waves 2 to 4 feet. 
.tonight...southeast winds 20 to 30 knots increasing to gales to
40 knots by midnight. freezing spray. a chance of snow showers in
the evening. snow showers after midnight. waves building to 7 to
10 feet occasionally to 13 feet. 
.friday...southeast gales to 35 knots becoming south 20 to
30 knots by late morning, then diminishing to 15 to 25 knots by
mid afternoon. snow showers in the morning, then a chance of snow
showers in the afternoon. waves subsiding to 2 to 4 feet. 
.friday night...southeast winds 10 to 20 knots veering south
late. waves subsiding to 1 to 3 feet. 
.saturday...southeast winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...southeast winds 20 to 30 knots. a chance of
rain showers, possibly mixed with freezing rain and snow showers.
waves subsiding to 2 to 4 feet. 
.sunday...southeast winds 15 to 25 knots. rain showers likely.
snow showers likely in the afternoon. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.sunday night...north gales to 45 knots. snow showers. freezing
spray after midnight. waves building to 10 to 14 feet
occasionally to 18 feet. 
.monday...north gales to 45 knots backing northwest. freezing
spray. snow showers. waves building to 15 to 20 feet occasionally
to 25 feet, then subsiding to 10 to 14 feet occasionally to
18 feet. 
.tuesday...west winds 20 to 30 knots becoming northwest gales to
35 knots. freezing spray. snow showers likely. waves subsiding to
5 to 8 feet occasionally to 10 feet, then building to 8 to
11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 252101
glfls 
expires:202512260900;;217889

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 25 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...

30.4 inch ridging returns to lake superior today as a 30.5 inch high 
transits northern ontario. low pressure of 29.6 inches moves east 
along the southern end of the great lakes basin on friday. another 
low of 29.6 inches then lifts over lower michigan sunday while 
extending a 29.7 inch trough northward across the lake. by monday, a 
strong high pressure of at least 30.6 inches will reside over the 
great plains as the low deepens to 29.1 inches over quebec, yielding 
a tight pressure gradient across the great lakes.



lsz162-260900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est thu dec 25 2025 /300 pm cst thu dec 25 2025/

.late this afternoon...east winds 15 to 25 knots. a slight chance
of snow showers, possibly mixed with sleet. waves 4 to 7 feet
occasionally to 9 feet. 
.tonight...southeast winds 15 to 25 knots becoming south 10 to
20 knots late. sleet likely, possibly mixed with snow showers in
the evening. rain showers likely. snow showers, possibly mixed
with sleet after midnight. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.friday...south winds 5 to 15 knots veering west by late morning,
then veering northwest by mid afternoon. a chance of rain
showers, possibly mixed with snow and sleet in the morning. waves
subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots backing south by
midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a chance of rain showers, possibly
mixed with snow. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. a chance of rain and snow showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday night...northwest gales to 35 knots becoming north gales
to 40 knots after midnight. heavy freezing spray. a chance of
snow showers. waves building to 5 to 8 feet occasionally to
10 feet. 
.monday...northwest gales to 40 knots. heavy freezing spray. a
chance of snow showers. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 20 to
30 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 252101
glfls 
expires:202512260900;;217890

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 25 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...

30.4 inch ridging returns to lake superior today as a 30.5 inch high 
transits northern ontario. low pressure of 29.6 inches moves east 
along the southern end of the great lakes basin on friday. another 
low of 29.6 inches then lifts over lower michigan sunday while 
extending a 29.7 inch trough northward across the lake. by monday, a 
strong high pressure of at least 30.6 inches will reside over the 
great plains as the low deepens to 29.1 inches over quebec, yielding 
a tight pressure gradient across the great lakes.



lsz263-260900-
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 thu dec 25 2025

.late this afternoon...southeast winds 15 to 25 knots. a slight
chance of snow showers. waves 3 to 6 feet occasionally to 8 feet.
.tonight...southeast winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by midnight,
then becoming south 20 to 30 knots late. a chance of snow showers
in the evening, then snow showers, possibly mixed with rain and
sleet after midnight. waves building to 7 to 10 feet occasionally
to 13 feet. 
.friday...south winds 15 to 25 knots becoming west 5 to 15 knots
by late morning, then veering northwest by mid afternoon. a
chance of rain showers, possibly mixed with snow and sleet in the
morning. waves subsiding to 2 to 4 feet. 
.friday night...west winds less than 10 knots becoming south 5 to
15 knots by midnight. waves subsiding to calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 1 to 3 feet. 
.saturday night...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of rain showers. waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.sunday...northwest winds 10 to 20 knots increasing to gales to
35 knots in the afternoon. a chance of rain and snow showers.
waves subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...north gales to 45 knots. heavy freezing spray.
snow showers likely. waves building to 10 to 14 feet occasionally
to 18 feet. 
.monday...north gales to 45 knots becoming northwest gales to
40 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 20 to 30 knots becoming northwest gales to
35 knots. freezing spray. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 252101
glfls 
expires:202512260900;;217891

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 25 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...

30.4 inch ridging returns to lake superior today as a 30.5 inch high 
transits northern ontario. low pressure of 29.6 inches moves east 
along the southern end of the great lakes basin on friday. another 
low of 29.6 inches then lifts over lower michigan sunday while 
extending a 29.7 inch trough northward across the lake. by monday, a 
strong high pressure of at least 30.6 inches will reside over the 
great plains as the low deepens to 29.1 inches over quebec, yielding 
a tight pressure gradient across the great lakes.



lsz264-260900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est thu dec 25 2025

...gale warning in effect from 1 am est friday through friday
morning...

.late this afternoon...southeast winds 15 to 25 knots. a chance
of snow showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...southeast winds 20 to 30 knots increasing to gales to
35 knots by midnight. snow showers likely in the evening, then
snow showers after midnight. waves building to 10 to 14 feet
occasionally to 18 feet. 
.friday...south gales to 35 knots becoming southwest 15 to
25 knots by late morning, then becoming west 5 to 15 knots by mid
afternoon. snow showers, possibly mixed with rain in the morning.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday night...west winds 5 to 15 knots backing south by
midnight. waves subsiding to calm to 2 feet. 
.saturday...south winds 10 to 20 knots becoming southeast 15 to
25 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday night...south winds 15 to 25 knots. a chance of rain
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...west winds 10 to 20 knots becoming north 20 to 30 knots
in the afternoon. a chance of rain showers. a chance of snow
showers in the afternoon. waves subsiding to 2 to 4 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.sunday night...north gales to 45 knots. heavy freezing spray.
snow showers likely. waves building to 11 to 15 feet occasionally
to 19 feet. 
.monday...north gales to 45 knots backing northwest. heavy
freezing spray. waves building to 12 to 17 feet occasionally to
21 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.tuesday...northwest winds 20 to 30 knots increasing to gales to
35 knots. freezing spray. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet, then building to
7 to 10 feet occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 252101
glfls 
expires:202512260900;;217892

open lake forecast for lake superior
national weather service marquette mi
400 pm est thu dec 25 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...

30.4 inch ridging returns to lake superior today as a 30.5 inch high 
transits northern ontario. low pressure of 29.6 inches moves east 
along the southern end of the great lakes basin on friday. another 
low of 29.6 inches then lifts over lower michigan sunday while 
extending a 29.7 inch trough northward across the lake. by monday, a 
strong high pressure of at least 30.6 inches will reside over the 
great plains as the low deepens to 29.1 inches over quebec, yielding 
a tight pressure gradient across the great lakes.



lsz265-260900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est thu dec 25 2025

.late this afternoon...southeast winds 20 to 30 knots. a slight
chance of snow showers. waves 3 to 6 feet occasionally to 8 feet.
.tonight...southeast winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by midnight. a
chance of snow showers in the evening, then snow showers,
possibly mixed with sleet after midnight. waves building to 8 to
11 feet occasionally to 14 feet. 
.friday...south winds 20 to 30 knots diminishing to 15 to
25 knots by late morning, then becoming west 10 to 20 knots by
mid afternoon. snow showers, possibly mixed with rain in the
morning. waves subsiding to 1 to 3 feet. 
.friday night...west winds 5 to 15 knots backing southwest by
midnight, then becoming south 10 to 20 knots late. waves
subsiding to calm to 2 feet. 
.saturday...south winds 10 to 20 knots becoming southeast 15 to
25 knots in the afternoon. a slight chance of rain showers in the
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.saturday night...southeast winds 15 to 25 knots veering south
after midnight. a chance of rain showers. waves subsiding to 1 to
3 feet. 
.sunday...south winds 10 to 20 knots becoming northwest 20 to
30 knots in the afternoon. a chance of rain showers. a chance of
snow showers in the afternoon. waves subsiding to calm to 2 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...north gales to 45 knots increasing to storm force
winds to 50 knots after midnight. heavy freezing spray. snow
showers. waves building to 12 to 17 feet occasionally to 21 feet.
.monday...northwest storm force winds to 50 knots diminishing to
gales to 45 knots. heavy freezing spray. snow showers likely. a
chance of snow showers. waves building to 15 to 20 feet
occasionally to 25 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.tuesday...west gales to 35 knots becoming northwest gales to
40 knots. freezing spray. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
6 to 9 feet occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$