fzus63 kdtx 290830
glflh 
expires:202512291630;;424768

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am est mon dec 29 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...low pressure, 28.90 inches, tracks across northern
lake huron early monday morning. widespread strong gales with
storm force gusts, snow squalls, and freezing spray are all
expected monday. the next clipper in a persistent northwest flow
pattern arrives late tuesday.


lhz462-291630-
lake huron from port austin to harbor beach beyond 5nm off shore-
330 am est mon dec 29 2025

...storm warning in effect through tuesday morning...

.today...west at 40 knot gales veering to the northwest late in
the afternoon. storm force gusts to 50 knots. snow showers and
rain in the morning...then snow showers in the afternoon.
freezing spray in the afternoon. waves 12 to 16 feet building to
18 to 23 feet in the afternoon. waves occasionally around
28 feet. 
.tonight...northwest at 45 knot gales. storm force gusts to
50 knots decreasing to 40 knot gales early in the morning.
scattered snow showers. freezing spray. waves 18 to 23 feet.
waves occasionally around 28 feet. 
.tuesday...northwest at 35 knot gales with gusts to 40 knot gales
becoming west 20 to 25 knots with gusts to around 30 knots.
freezing spray in the morning. a chance of snow in the afternoon.
waves 14 to 18 feet subsiding to 10 to 14 feet early in the
afternoon. waves occasionally around 23 feet. 
.tuesday night...west winds 20 to 25 knots. snow. waves 6 to
9 feet. waves occasionally around 12 feet. 
.wednesday...west winds 20 to 25 knots becoming northwest to
30 knots late in the afternoon...then decreasing to 20 to
25 knots late in the evening. snow likely in the morning...then
snow late in the morning. a chance of snow late in the afternoon.
freezing spray. waves 8 to 12 feet. waves occasionally around
15 feet. 
.thursday...west winds 20 to 25 knots. gusts to 30 knots.
freezing spray. waves 6 to 9 feet. waves occasionally around
12 feet. 
.friday...west winds 20 to 25 knots decreasing to 15 to 20 knots.
freezing spray until afternoon. waves 5 to 7 feet. waves
occasionally around 10 feet. 


$$

fzus63 kdtx 290830
glflh 
expires:202512291630;;424767

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am est mon dec 29 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...low pressure, 28.90 inches, tracks across northern
lake huron early monday morning. widespread strong gales with
storm force gusts, snow squalls, and freezing spray are all
expected monday. the next clipper in a persistent northwest flow
pattern arrives late tuesday.


lhz363-291630-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
330 am est mon dec 29 2025

...storm warning in effect through tuesday morning...
...heavy freezing spray warning in effect through tuesday
morning...

.today...southwest at 40 knot gales veering to the northwest in
the afternoon. storm force gusts to 50 knots. snow showers.
freezing spray. waves 15 to 20 feet. waves occasionally around
25 feet. 
.tonight...northwest at 45 knot gales. scattered snow showers.
freezing spray. waves 18 to 23 feet. waves occasionally around
28 feet. 
.tuesday...northwest at 35 knot gales with gusts to 40 knot gales
becoming west 20 to 25 knots with gusts to around 30 knots.
freezing spray. a chance of snow in the afternoon. waves 14 to
18 feet subsiding to 10 to 14 feet early in the afternoon. waves
occasionally around 23 feet.
.tuesday night...west winds 20 to 25 knots decreasing to 15 to
20 knots by midnight...then increasing to 20 to 25 knots after
midnight. snow in the evening...then a chance of snow after
midnight. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots late in the afternoon...then
decreasing to 20 to 25 knots with gusts to around 30 knots late
in the evening. snow likely...then a chance of snow late in the
afternoon. freezing spray. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.thursday...west winds 20 to 25 knots. gusts to 30 knots .
freezing spray. waves 8 to 12 feet. waves occasionally around
15 feet. 
.friday...west winds 20 to 25 knots with gusts to around 30 knots
decreasing to 15 to 20 knots . freezing spray until afternoon.
waves 5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kdtx 290830
glflh 
expires:202512291630;;424766

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 am est mon dec 29 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...low pressure, 28.90 inches, tracks across northern
lake huron early monday morning. widespread strong gales with
storm force gusts, snow squalls, and freezing spray are all
expected monday. the next clipper in a persistent northwest flow
pattern arrives late tuesday.


lhz361-362-291630-
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-
330 am est mon dec 29 2025

...storm warning in effect through tuesday morning...
...heavy freezing spray warning in effect through tuesday
morning...

.today...north winds to 30 knots with gusts to 35 knot gales
becoming west at 35 knot gales with gusts to 45 knot gales in the
late morning and early afternoon...then becoming northwest at
40 knot gales with storm force gusts to 50 knots late in the
afternoon. snow showers. freezing spray. waves 15 to 20 feet.
waves occasionally around 25 feet. 
.tonight...northwest at 40 knot gales with gusts to 45 knot
gales. scattered snow showers. heavy freezing spray. waves 18 to
23 feet. waves occasionally around 28 feet. 
.tuesday...northwest at 35 knot gales with gusts to 40 knot gales
decreasing to 20 to 25 knots with gusts to around 30 knots.
freezing spray. a chance of snow in the afternoon. waves 14 to
18 feet subsiding to 10 to 14 feet early in the afternoon. waves
occasionally around 23 feet.
.tuesday night...west winds 20 to 25 knots decreasing to 15 to
20 knots by midnight...then increasing to 20 to 25 knots after
midnight. snow likely. freezing spray after midnight. waves 6 to
9 feet. waves occasionally around 12 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots late in the afternoon...then
decreasing to 20 to 25 knots with gusts to around 30 knots late
in the evening. a chance of snow. freezing spray. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday...west winds 20 to 25 knots with gusts to around
30 knots. freezing spray. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.friday...west winds 20 to 25 knots with gusts to around 30 knots
decreasing to 15 to 20 knots by midnight. freezing spray. waves
6 to 9 feet. waves occasionally around 12 feet. 


$$

fzus63 kmkx 290908
glflm 
expires:202512291630;;426775

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cst mon dec 29 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...

low pressure of 29.0 inches currently over northern lower 
michigan will continue to deepen and lift northeastward through
today. northwesterly storm force gusts are already ongoing across
the southern third of the lake and are expected to spread from 
south to north through the morning as low pressure lifts 
northeastward. a storm warning is in effect. this afternoon into 
this evening, as low pressure exits into western quebec, storm 
force gusts will diminish to gale force. a downgrade to gale 
warning will be issued as conditions improve this afternoon and 
evening. gales are expected to continue into tuesday morning.
moderate freezing spray is expected throughout today and into
tuesday morning. a few areas of heavy freezing spray are possible
across far northern portions of lake michigan today within the
strongest winds.winds will remain northwest and will diminish 
below gale force tuesday morning, but will remain brisk through 
the remainder of the week.


lmz261-362-364-366-563-565-567-868-291630-
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-
308 am cst mon dec 29 2025

sheboygan wi to pentwater mi north...

...storm warning in effect through late tonight...

.today...north storm force winds to 55 kt becoming northwest
storm force winds to 50 kt. visibility one quarter mile or less
at times. snow this morning, then chance of snow this afternoon.
waves 18 to 23 ft occasionally to 30 ft subsiding to 14 to 18 ft
occasionally to 23 ft. 
.tonight...northwest gales to 40 kt diminishing to 30 kt.
freezing spray. chance of snow in the evening, then slight chance
of snow overnight. waves 12 to 16 ft occasionally to 21 ft
subsiding to 8 to 11 ft occasionally to 14 ft. 
.tuesday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray in the morning. snow in the afternoon. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.tuesday night...west winds 15 to 25 kt becoming northwest to
30 kt. chance of snow. waves 5 to 8 ft occasionally to 10 ft. 
.wednesday...northwest winds to 30 kt. freezing spray. chance of
snow. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday night...northwest gales to 35 kt diminishing to 30 kt.
freezing spray. waves 6 to 9 ft occasionally to 12 ft. 
.thursday...northwest winds to 30 kt becoming west. freezing
spray. waves 5 to 8 ft occasionally to 10 ft. 
.friday...west winds to 30 kt diminishing to 15 to 25 kt. waves
4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmkx 290908
glflm 
expires:202512291630;;426776

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
308 am cst mon dec 29 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...

low pressure of 29.0 inches currently over northern lower 
michigan will continue to deepen and lift northeastward through
today. northwesterly storm force gusts are already ongoing across
the southern third of the lake and are expected to spread from 
south to north through the morning as low pressure lifts 
northeastward. a storm warning is in effect. this afternoon into 
this evening, as low pressure exits into western quebec, storm 
force gusts will diminish to gale force. a downgrade to gale 
warning will be issued as conditions improve this afternoon and 
evening. gales are expected to continue into tuesday morning.
moderate freezing spray is expected throughout today and into
tuesday morning. a few areas of heavy freezing spray are possible
across far northern portions of lake michigan today within the
strongest winds.winds will remain northwest and will diminish 
below gale force tuesday morning, but will remain brisk through 
the remainder of the week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-291630-
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-
308 am cst mon dec 29 2025

sheboygan wi to pentwater mi south...

...storm warning in effect through late tonight...

.today...northwest storm force winds to 55 kt diminishing to
gales to 45 kt. freezing spray. snow this morning, then chance of
snow this afternoon. waves 18 to 23 ft occasionally to 30 ft. 
.tonight...northwest gales to 35 kt diminishing to 30 kt. chance
of snow in the evening. freezing spray. waves 14 to 18 ft
occasionally to 23 ft subsiding to 12 to 16 ft occasionally to
21 ft. 
.tuesday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray in the morning. chance of snow in the afternoon.
waves 8 to 11 ft occasionally to 14 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.tuesday night...west winds to 30 kt becoming northwest. chance
of snow in the evening. waves 7 to 10 ft occasionally to 13 ft. 
.wednesday...northwest winds to 30 kt. chance of snow. freezing
spray in the afternoon. waves 8 to 12 ft occasionally to 16 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 15 to
25 kt. freezing spray. chance of snow. waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.thursday...northwest winds to 30 kt becoming west. freezing
spray. waves 6 to 9 ft occasionally to 12 ft. 
.friday...west winds 15 to 25 kt. freezing spray. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft.  

$$

fzus63 kmqt 290901
glfls 
expires:202512292100;;425977

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 29 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...

28.9 inch low pressure currently analyzed over central lake huron 
moves into quebec today while further deepening to 28.8 inches. 
meanwhile, a strong high pressure of at least 30.6 inches is 
expanding across the great plains. a 29.7 inch trough dives 
southeast into the upper great lakes late tuesday. weak ridging of 
around 30.0 inches on wednesday will be followed up by additional 
29.6-29.7inch shortwaves skirting the region the rest of the work 
week.



lsz264-292100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est mon dec 29 2025

...storm warning in effect through this evening...
...heavy freezing spray warning in effect through this evening...

.early this morning...north storm force winds to 60 knots. heavy
freezing spray. a slight chance of snow. waves 20 to 25 feet
occasionally to 31 feet. 
.today...north storm force winds to 55 knots diminishing to gales
to 45 knots by mid afternoon. heavy freezing spray. a slight
chance of snow. waves subsiding to 12 to 17 feet occasionally to
21 feet. 
.tonight...north gales to 40 knots becoming northwest gales to
35 knots by midnight, then diminishing to 20 to 30 knots late.
heavy freezing spray. waves subsiding to 4 to 7 feet occasionally
to 9 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then increasing to 15 to 25 knots by
mid afternoon. a slight chance of snow showers in the morning,
then snow showers likely in the afternoon. waves subsiding to
2 to 4 feet. 
.tuesday night...northwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. heavy freezing spray. a chance
of snow showers. waves building to 8 to 11 feet occasionally to
14 feet. 
.wednesday...northwest gales to 35 knots. heavy freezing spray. a
chance of snow showers. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet. 
.wednesday night...northwest gales to 40 knots. heavy freezing
spray. waves building to 8 to 11 feet occasionally to 14 feet. 
.thursday...west gales to 40 knots veering northwest. heavy
freezing spray. waves subsiding to 7 to 10 feet occasionally to
13 feet, then building to 8 to 11 feet occasionally to 14 feet. 
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. waves subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 290901
glfls 
expires:202512292100;;425980

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 29 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...

28.9 inch low pressure currently analyzed over central lake huron 
moves into quebec today while further deepening to 28.8 inches. 
meanwhile, a strong high pressure of at least 30.6 inches is 
expanding across the great plains. a 29.7 inch trough dives 
southeast into the upper great lakes late tuesday. weak ridging of 
around 30.0 inches on wednesday will be followed up by additional 
29.6-29.7inch shortwaves skirting the region the rest of the work 
week.



lsz267-292100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est mon dec 29 2025

...storm warning in effect through this evening...
...heavy freezing spray warning in effect through this evening...

.early this morning...north storm force winds to 60 knots.
freezing spray. snow. waves 17 to 22 feet occasionally to
28 feet. 
.today...north storm force winds to 60 knots. heavy freezing
spray. snow in the morning. a chance of snow showers in the
afternoon. waves building to 20 to 25 feet occasionally to
31 feet, then subsiding to 17 to 22 feet occasionally to 28 feet.
.tonight...north storm force winds to 50 knots diminishing to
gales to 45 knots by midnight, then becoming northwest gales to
40 knots late. heavy freezing spray. a slight chance of snow
showers. waves subsiding to 9 to 12 feet occasionally to 15 feet.
.tuesday...northwest gales to 35 knots diminishing to 20 to
30 knots. freezing spray. a slight chance of snow showers in the
morning. snow showers likely in the afternoon. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.tuesday night...north winds 20 to 30 knots increasing to gales
to 35 knots after midnight. freezing spray. snow showers. waves
building to 7 to 10 feet occasionally to 13 feet. 
.wednesday...north gales to 35 knots backing northwest in the
afternoon. heavy freezing spray. snow showers. waves building to
10 to 14 feet occasionally to 18 feet. 
.wednesday night...northwest gales to 40 knots. heavy freezing
spray. snow showers. waves 10 to 14 feet occasionally to 18 feet.
.thursday...northwest gales to 40 knots becoming west gales to
35 knots. heavy freezing spray. snow showers. waves building to
11 to 15 feet occasionally to 19 feet, then subsiding to 9 to
12 feet occasionally to 15 feet. 
.friday...northwest winds 20 to 30 knots. freezing spray. snow
showers likely. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 290901
glfls 
expires:202512292100;;425975

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 29 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...

28.9 inch low pressure currently analyzed over central lake huron 
moves into quebec today while further deepening to 28.8 inches. 
meanwhile, a strong high pressure of at least 30.6 inches is 
expanding across the great plains. a 29.7 inch trough dives 
southeast into the upper great lakes late tuesday. weak ridging of 
around 30.0 inches on wednesday will be followed up by additional 
29.6-29.7inch shortwaves skirting the region the rest of the work 
week.



lsz162-292100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est mon dec 29 2025 /300 am cst mon dec 29 2025/

...gale warning in effect through this evening...
...heavy freezing spray warning in effect through this evening...

.early this morning...north gales to 45 knots. heavy freezing
spray. waves 11 to 15 feet occasionally to 19 feet subsiding to
10 to 14 feet occasionally to 18 feet. 
.today...north gales to 40 knots becoming northwest gales to
35 knots. heavy freezing spray. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight, then becoming west 10 to 20 knots late.
freezing spray in the evening. waves subsiding to calm to 2 feet.
.tuesday...west winds 10 to 20 knots. snow showers. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a slight chance of snow showers.
waves building to 2 to 4 feet. 
.wednesday...northwest winds 20 to 30 knots. waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 
.wednesday night...northwest gales to 35 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.thursday...west gales to 35 knots. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 290901
glfls 
expires:202512292100;;425976

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 29 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...

28.9 inch low pressure currently analyzed over central lake huron 
moves into quebec today while further deepening to 28.8 inches. 
meanwhile, a strong high pressure of at least 30.6 inches is 
expanding across the great plains. a 29.7 inch trough dives 
southeast into the upper great lakes late tuesday. weak ridging of 
around 30.0 inches on wednesday will be followed up by additional 
29.6-29.7inch shortwaves skirting the region the rest of the work 
week.



lsz263-292100-
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 am est mon dec 29 2025

...storm warning in effect through this evening...
...heavy freezing spray warning in effect through this evening...

.early this morning...north storm force winds to 55 knots. heavy
freezing spray. a slight chance of snow. waves 17 to 22 feet
occasionally to 28 feet. 
.today...north storm force winds to 55 knots diminishing to gales
to 45 knots by late morning, then becoming northwest gales to
40 knots by mid afternoon. a slight chance of snow in the
morning. heavy freezing spray. waves subsiding to 8 to 11 feet
occasionally to 14 feet. 
.tonight...northwest gales to 35 knots diminishing to 15 to
25 knots. freezing spray in the evening. waves subsiding to 2 to
4 feet. 
.tuesday...northwest winds 5 to 15 knots becoming west 10 to
20 knots by late morning, then becoming northwest 15 to 25 knots
by mid afternoon. a chance of snow showers in the morning, then
snow showers in the afternoon. waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet. 
.tuesday night...northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. heavy freezing spray. a chance of
snow showers. waves building to 5 to 8 feet occasionally to
10 feet. 
.wednesday...northwest winds 20 to 30 knots increasing to gales
to 35 knots in the afternoon. heavy freezing spray. waves
subsiding to 4 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest gales to 35 knots. heavy freezing
spray. waves building to 6 to 9 feet occasionally to 11 feet. 
.thursday...west gales to 35 knots. heavy freezing spray. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. heavy freezing spray. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 290901
glfls 
expires:202512292100;;425978

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 29 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...

28.9 inch low pressure currently analyzed over central lake huron 
moves into quebec today while further deepening to 28.8 inches. 
meanwhile, a strong high pressure of at least 30.6 inches is 
expanding across the great plains. a 29.7 inch trough dives 
southeast into the upper great lakes late tuesday. weak ridging of 
around 30.0 inches on wednesday will be followed up by additional 
29.6-29.7inch shortwaves skirting the region the rest of the work 
week.



lsz265-292100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est mon dec 29 2025

...storm warning in effect through this evening...
...heavy freezing spray warning in effect through this evening...

.early this morning...north storm force winds to 60 knots.
freezing spray. a chance of snow. waves 22 to 27 feet
occasionally to 34 feet. 
.today...north storm force winds to 55 knots becoming northwest
storm force winds to 50 knots by mid afternoon. heavy freezing
spray. a chance of snow. waves subsiding to 15 to 20 feet
occasionally to 25 feet. 
.tonight...northwest gales to 45 knots diminishing to 20 to
30 knots late. heavy freezing spray. waves subsiding to 5 to
8 feet occasionally to 10 feet. 
.tuesday...northwest winds 20 to 30 knots becoming west 15 to
25 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. freezing spray in the morning. a slight chance of
snow showers in the morning, then snow showers likely in the
afternoon. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 20 to 30 knots increasing to
gales to 40 knots after midnight. heavy freezing spray. snow
showers likely. waves building to 9 to 12 feet occasionally to
15 feet. 
.wednesday...northwest gales to 40 knots. heavy freezing spray.
snow showers likely in the morning. a chance of snow showers in
the afternoon. waves subsiding to 8 to 11 feet occasionally to
14 feet. 
.wednesday night...northwest gales to 45 knots. heavy freezing
spray. a chance of snow showers. waves 8 to 11 feet occasionally
to 14 feet. 
.thursday...west gales to 40 knots. heavy freezing spray. a
chance of snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 290901
glfls 
expires:202512292100;;425979

open lake forecast for lake superior
national weather service marquette mi
400 am est mon dec 29 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...

28.9 inch low pressure currently analyzed over central lake huron 
moves into quebec today while further deepening to 28.8 inches. 
meanwhile, a strong high pressure of at least 30.6 inches is 
expanding across the great plains. a 29.7 inch trough dives 
southeast into the upper great lakes late tuesday. weak ridging of 
around 30.0 inches on wednesday will be followed up by additional 
29.6-29.7inch shortwaves skirting the region the rest of the work 
week.



lsz266-292100-
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 am est mon dec 29 2025

...storm warning in effect through this evening...
...heavy freezing spray warning in effect through this evening...

.early this morning...north storm force winds to 60 knots.
freezing spray. snow. waves 22 to 27 feet occasionally to
34 feet. 
.today...north storm force winds to 60 knots. heavy freezing
spray. a chance of snow. waves building to 25 to 30 feet
occasionally to 38 feet, then subsiding to 20 to 25 feet
occasionally to 31 feet. 
.tonight...north gales to 45 knots becoming northwest gales to
40 knots by midnight. heavy freezing spray. a slight chance of
snow showers. waves subsiding to 9 to 12 feet occasionally to
15 feet. 
.tuesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. freezing spray. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...northwest winds 20 to 30 knots increasing to
gales to 40 knots after midnight. freezing spray. snow showers.
waves building to 10 to 14 feet occasionally to 18 feet. 
.wednesday...northwest gales to 40 knots. heavy freezing spray.
snow showers. waves building to 11 to 15 feet occasionally to
19 feet. 
.wednesday night...northwest gales to 40 knots. heavy freezing
spray. snow showers in the evening. a chance of snow showers
after midnight. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.thursday...northwest gales to 40 knots. heavy freezing spray. a
chance of snow showers. snow showers likely. waves building to
11 to 15 feet occasionally to 19 feet, then subsiding to 9 to
12 feet occasionally to 15 feet. 
.friday...northwest gales to 35 knots. freezing spray. snow
showers likely. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$