fzus63 kdtx 312008
glflh 
expires:202601010415;;567846

open lake forecast for lake huron
national weather service detroit/pontiac mi
308 pm est wed dec 31 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...a secondary weak low pressure system, 20.50 inches,
will track along a stationary front which is draped across lake
superior and lake huron this evening. this system will reinforce
the arctic airmass and bring borderline gales across lake huron
late this afternoon and early evening.


lhz362-010415-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
308 pm est wed dec 31 2025

...heavy freezing spray warning in effect from 7 pm est this
evening through thursday morning...

.tonight...northwest winds to 30 knots decreasing to 20 to
25 knots after midnight. brief period of gusts to 35 knot gales. 
heavy 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. 
.thursday night...west winds 20 to 25 knots. freezing spray.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.friday...west winds 20 to 25 knots. freezing spray. waves 6 to
9 feet. waves occasionally around 12 feet. 
.friday night...west winds 20 to 25 knots decreasing to 15 to
20 knots after midnight. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.saturday...west winds 10 to 15 knots increasing to 15 to
20 knots late in the evening. waves 3 to 5 feet. 
.sunday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots until early evening...then backing to the west by
midnight. a chance of snow by midnight. waves 3 to 5 feet. 
.monday...southwest winds 10 to 15 knots. a chance of snow until
afternoon. waves 3 to 5 feet subsiding to 2 to 4 feet by
midnight. 


$$

fzus63 kdtx 312008
glflh 
expires:202601010415;;567845

open lake forecast for lake huron
national weather service detroit/pontiac mi
308 pm est wed dec 31 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...a secondary weak low pressure system, 20.50 inches,
will track along a stationary front which is draped across lake
superior and lake huron this evening. this system will reinforce
the arctic airmass and bring borderline gales across lake huron
late this afternoon and early evening.


lhz361-010415-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
308 pm est wed dec 31 2025

...heavy freezing spray warning in effect from 7 pm est this
evening through thursday morning...

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


$$

fzus63 kdtx 312008
glflh 
expires:202601010415;;567847

open lake forecast for lake huron
national weather service detroit/pontiac mi
308 pm est wed dec 31 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...a secondary weak low pressure system, 20.50 inches,
will track along a stationary front which is draped across lake
superior and lake huron this evening. this system will reinforce
the arctic airmass and bring borderline gales across lake huron
late this afternoon and early evening.


lhz363-462>464-010415-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
308 pm est wed dec 31 2025

.tonight...northwest winds to 30 knots decreasing to 20 to
25 knots early in the morning. brief period of gusts to 35 knot 
gales. a chance of snow in the evening. freezing spray. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday...west winds 20 to 25 knots. gusts to 30 knots early in
the morning. freezing spray. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.thursday night...west winds 20 to 25 knots decreasing to 15 to
20 knots in the late evening and overnight. freezing spray. waves
5 to 7 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 20 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.friday night...west winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.saturday...west winds 10 to 15 knots increasing to 15 to
20 knots late in the evening. waves 3 to 5 feet subsiding to 2 to
4 feet late in the afternoon...then building to 3 to 5 feet late
in the evening. 
.sunday...west winds 15 to 20 knots becoming northwest 10 to
15 knots until early evening...then backing to the west by
midnight. a chance of snow by midnight. waves 3 to 5 feet. 
.monday...southwest winds 10 to 15 knots. a chance of snow until
afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet by
midnight. 


$$

fzus63 kdtx 311446
glflh 
expires:202512312300;;555167

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am est wed dec 31 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...a secondary weak low pressure system, 20.50 inches,
will track along a stationary front which is draped across lake
superior and lake huron this evening. this system will then send a
cold front and reinforce the arctic airmass bringing borderline 
gales across lake huron late this afternoon and early evening.


lhz362-363-312300-
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-
946 am est wed dec 31 2025

.rest of today...west winds 15 to 20 knots becoming northwest
20 to 25 knots with gusts to around 30 knots late in the
afternoon. a chance of snow late in the morning...then snow in
the afternoon. waves 6 to 9 feet. waves occasionally around
12 feet. 
.tonight...northwest winds to 30 knots decreasing to 20 to
25 knots with gusts to around 30 knots after midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday...west winds 20 to 25 knots. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.thursday night...west winds 20 to 25 knots. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.friday...west winds 15 to 20 knots increasing to 20 to 25 knots
late in the afternoon...then decreasing to 15 to 20 knots late in
the evening. waves 6 to 9 feet. waves occasionally around
12 feet. 
.saturday...west winds 15 to 20 knots decreasing to 10 to
15 knots until early evening...then increasing to 15 to 20 knots
by midnight. waves 4 to 6 feet. waves occasionally around 8 feet.
.sunday...west winds 10 to 15 knots. a chance of snow by
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet by midnight.


$$

fzus63 kdtx 311446
glflh 
expires:202512312300;;555168

open lake forecast for lake huron
national weather service detroit/pontiac mi
946 am est wed dec 31 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...a secondary weak low pressure system, 20.50 inches,
will track along a stationary front which is draped across lake
superior and lake huron this evening. this system will then send a
cold front and reinforce the arctic airmass bringing borderline 
gales across lake huron late this afternoon and early evening.


lhz462>464-312300-
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-
946 am est wed dec 31 2025

.rest of today...west winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots late in the afternoon.
snow in the afternoon. waves 5 to 7 feet. waves occasionally
around 10 feet. 
.tonight...northwest winds to 30 knots decreasing to 20 to
25 knots after midnight. snow likely in the evening. waves 8 to
12 feet. waves occasionally around 15 feet. 
.thursday...west winds 20 to 25 knots decreasing to 15 to
20 knots early in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.thursday night...west winds 15 to 20 knots. a chance of snow.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 20 knots. waves 4 to 6 feet. 
.saturday...west winds 15 to 20 knots decreasing to 10 to
15 knots. waves 3 to 5 feet. waves occasionally around 8 feet. 
.sunday...west winds 10 to 15 knots. a chance of. waves 2 to
4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kmkx 311943
glflm 
expires:202601010415;;567133

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
143 pm cst wed dec 31 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 29.6 inches over lake huron this afternoon will 
continue to head southeastward through the rest of the day, with 
an associated cold front dropping through the region. northwest 
winds gusting up to 30 knots are expected into this evening behind
the front, with winds gradually easing overnight into thursday as
high pressure builds in from the northwest. moderate freezing 
spray is expected to develop from north to south this afternoon 
into this evening and continue into thursday morning as a colder 
airmass arrives behind the cold front. west to northwest winds 
around 10 to 20 knots will then prevail most of the time through 
the end of the week under persistent northwest flow aloft. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-010415-
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-
143 pm cst wed dec 31 2025

sheboygan wi to pentwater mi south...

.tonight...northwest winds to 30 kt diminishing to 15 to 25 kt.
slight chance of snow this evening. freezing spray. waves 8 to
12 ft occasionally to 16 ft subsiding to 6 to 9 ft occasionally
to 12 ft. 
.thursday...northwest winds 10 to 20 kt becoming west. freezing
spray in the morning. chance of snow in the afternoon. waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.thursday night...west winds 10 to 20 kt becoming northwest.
waves 4 to 6 ft occasionally to 8 ft. 
.friday...northwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.friday night...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft. 
.saturday...northwest winds 5 to 10 kt becoming west 10 to 15 kt.
waves 1 to 3 ft. 
.saturday night...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday...northwest winds 10 to 15 kt becoming west. waves 2 to
4 ft. 
.monday...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmkx 311943
glflm 
expires:202601010415;;567132

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
143 pm cst wed dec 31 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 29.6 inches over lake huron this afternoon will 
continue to head southeastward through the rest of the day, with 
an associated cold front dropping through the region. northwest 
winds gusting up to 30 knots are expected into this evening behind
the front, with winds gradually easing overnight into thursday as
high pressure builds in from the northwest. moderate freezing 
spray is expected to develop from north to south this afternoon 
into this evening and continue into thursday morning as a colder 
airmass arrives behind the cold front. west to northwest winds 
around 10 to 20 knots will then prevail most of the time through 
the end of the week under persistent northwest flow aloft. 


lmz261-362-364-366-563-565-567-868-010415-
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-
143 pm cst wed dec 31 2025

sheboygan wi to pentwater mi north...

.tonight...northwest winds to 30 kt. freezing spray. chance of
snow this evening, then slight chance of snow overnight. waves
7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.thursday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray in the morning. waves 4 to 7 ft occasionally to
9 ft. 
.thursday night...west winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.friday...northwest winds 15 to 25 kt becoming west. waves 3 to
5 ft. 
.friday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.saturday...northwest winds 10 to 20 kt becoming west. chance of
snow in the morning. waves 1 to 3 ft. 
.saturday night...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday...northwest winds 10 to 15 kt becoming west 10 to 20 kt.
waves 2 to 4 ft. 
.monday...southwest winds 10 to 20 kt becoming west. waves 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 312101
glfls 
expires:202601010900;;570062

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed dec 31 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...

as a weakening 28.3 inch low continues retrograding over hudson bay 
the rest of this afternoon through tonight, a weakening 30.5 inch 
ridge builds from the canadian prairies into the upper midwest. the 
ridge dwindles to 30.0 inches by thursday, but the pattern remains 
persistent into friday. weak ridging of 30.0 inches eventually 
pushes into lake superior by saturday, before the parent high of 
30.3 inches moves into the upper great lakes by sunday. in its wake, 
a weakening 29.8 inch low moves through the upper great lakes on 
monday.



lsz162-010900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est wed dec 31 2025 /300 pm cst wed dec 31 2025/

.late this afternoon...northwest winds 20 to 30 knots. scattered
snow showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds 15 to 25 knots. scattered snow showers.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday night...west winds 15 to 25 knots. a slight chance of
snow showers in the evening. waves subsiding to 1 to 3 feet. 
.friday...west winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. waves 1 to 3 feet. 
.friday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots becoming west 10 to
20 knots in the afternoon. a chance of snow showers. waves calm
to 2 feet. 
.saturday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.sunday...west winds 5 to 15 knots becoming southwest 10 to
20 knots. a chance of snow showers. waves calm to 2 feet. 
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 312101
glfls 
expires:202601010900;;570063

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed dec 31 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...

as a weakening 28.3 inch low continues retrograding over hudson bay 
the rest of this afternoon through tonight, a weakening 30.5 inch 
ridge builds from the canadian prairies into the upper midwest. the 
ridge dwindles to 30.0 inches by thursday, but the pattern remains 
persistent into friday. weak ridging of 30.0 inches eventually 
pushes into lake superior by saturday, before the parent high of 
30.3 inches moves into the upper great lakes by sunday. in its wake, 
a weakening 29.8 inch low moves through the upper great lakes on 
monday.



lsz263-010900-
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 wed dec 31 2025

...heavy freezing spray warning in effect through thursday
evening...

.late this afternoon...northwest winds to 30 knots with a few
gale force gusts to 35 knots possible. heavy freezing spray.
scattered snow showers. waves 5 to 9 feet occasionally to
11 feet. 
.tonight...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots by
midnight. heavy freezing spray. scattered snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.thursday...northwest winds 20 to 30 knots backing west. heavy
freezing spray. scattered snow showers. waves building to 5 to
9 feet occasionally to 11 feet. 
.thursday night...west winds 20 to 30 knots veering northwest
late. freezing spray. a chance of snow showers. waves subsiding
to 4 to 7 feet occasionally to 9 feet. 
.friday...northwest winds 20 to 30 knots becoming west 15 to
25 knots in the afternoon. freezing spray. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.saturday night...northwest winds 10 to 20 knots. waves 1 to
3 feet. 
.sunday...northwest winds 5 to 15 knots backing southwest. a
chance of snow showers. waves subsiding to calm to 2 feet. 
.monday...west winds 5 to 15 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 312101
glfls 
expires:202601010900;;570064

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed dec 31 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...

as a weakening 28.3 inch low continues retrograding over hudson bay 
the rest of this afternoon through tonight, a weakening 30.5 inch 
ridge builds from the canadian prairies into the upper midwest. the 
ridge dwindles to 30.0 inches by thursday, but the pattern remains 
persistent into friday. weak ridging of 30.0 inches eventually 
pushes into lake superior by saturday, before the parent high of 
30.3 inches moves into the upper great lakes by sunday. in its wake, 
a weakening 29.8 inch low moves through the upper great lakes on 
monday.



lsz264-010900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est wed dec 31 2025

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

.late this afternoon...northwest gales to 35 knots. heavy
freezing spray. scattered snow showers. waves 8 to 11 feet
occasionally to 14 feet. 
.tonight...northwest gales to 35 knots. heavy freezing spray.
scattered snow showers. waves building to 8 to 12 feet
occasionally to 15 feet. 
.thursday...northwest gales to 35 knots. heavy freezing spray.
scattered snow showers. waves subsiding to 7 to 10 feet
occasionally to 13 feet. 
.thursday night...northwest gales to 35 knots diminishing to
20 to 30 knots by midnight. a slight chance of snow showers in
the evening. heavy freezing spray. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.friday...northwest winds 20 to 30 knots. heavy freezing spray.
waves building to 6 to 9 feet occasionally to 11 feet, then
subsiding to 4 to 7 feet occasionally to 9 feet. 
.friday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. freezing spray in the evening.
waves subsiding to 2 to 4 feet. 
.saturday...northwest winds 10 to 20 knots. a chance of snow
showers. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.saturday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves 2 to 4 feet. 
.sunday...northwest winds 5 to 15 knots backing southwest. a
chance of snow showers. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.monday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 312101
glfls 
expires:202601010900;;570065

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed dec 31 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...

as a weakening 28.3 inch low continues retrograding over hudson bay 
the rest of this afternoon through tonight, a weakening 30.5 inch 
ridge builds from the canadian prairies into the upper midwest. the 
ridge dwindles to 30.0 inches by thursday, but the pattern remains 
persistent into friday. weak ridging of 30.0 inches eventually 
pushes into lake superior by saturday, before the parent high of 
30.3 inches moves into the upper great lakes by sunday. in its wake, 
a weakening 29.8 inch low moves through the upper great lakes on 
monday.



lsz265-010900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est wed dec 31 2025

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

.late this afternoon...northwest gales to 40 knots. heavy
freezing spray. scattered snow showers. waves 9 to 12 feet
occasionally to 15 feet. 
.tonight...northwest gales to 40 knots. heavy freezing spray.
scattered snow showers. waves subsiding to 7 to 10 feet
occasionally to 13 feet. 
.thursday...northwest gales to 40 knots. heavy freezing spray.
scattered snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.thursday night...northwest gales to 35 knots. freezing spray. a
slight chance of snow showers. waves subsiding to 5 to 8 feet
occasionally to 10 feet. 
.friday...northwest gales to 35 knots. freezing spray. a slight
chance of snow showers in the afternoon. waves 5 to 8 feet
occasionally to 10 feet. 
.friday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. freezing spray. waves subsiding to
2 to 4 feet. 
.saturday...northwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 1 to 3 feet. 
.sunday...west winds 15 to 25 knots becoming southwest 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 
.monday...west winds 10 to 20 knots. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 312101
glfls 
expires:202601010900;;570066

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed dec 31 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...

as a weakening 28.3 inch low continues retrograding over hudson bay 
the rest of this afternoon through tonight, a weakening 30.5 inch 
ridge builds from the canadian prairies into the upper midwest. the 
ridge dwindles to 30.0 inches by thursday, but the pattern remains 
persistent into friday. weak ridging of 30.0 inches eventually 
pushes into lake superior by saturday, before the parent high of 
30.3 inches moves into the upper great lakes by sunday. in its wake, 
a weakening 29.8 inch low moves through the upper great lakes on 
monday.



lsz266-010900-
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 wed dec 31 2025

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

.late this afternoon...northwest gales to 45 knots. heavy
freezing spray. numerous snow showers. waves 11 to 15 feet
occasionally to 19 feet. 
.tonight...northwest gales to 45 knots. heavy freezing spray.
scattered snow showers. waves building to 12 to 17 feet
occasionally to 21 feet, then subsiding to 11 to 15 feet
occasionally to 19 feet. 
.thursday...northwest gales to 40 knots. heavy freezing spray.
scattered snow showers. waves subsiding to 10 to 14 feet
occasionally to 18 feet. 
.thursday night...northwest gales to 35 knots diminishing to
20 to 30 knots by midnight. freezing spray. a chance of snow
showers. waves subsiding to 7 to 10 feet occasionally to 13 feet.
.friday...northwest gales to 35 knots. freezing spray. a chance
of snow showers. waves building to 7 to 11 feet occasionally to
14 feet. 
.friday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. freezing spray. a chance of snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...northwest winds 15 to 25 knots. freezing spray. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...northwest winds 15 to 25 knots. freezing spray
in the evening. a chance of snow showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.sunday...northwest winds 15 to 25 knots backing southwest. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 312101
glfls 
expires:202601010900;;570067

open lake forecast for lake superior
national weather service marquette mi
400 pm est wed dec 31 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...

as a weakening 28.3 inch low continues retrograding over hudson bay 
the rest of this afternoon through tonight, a weakening 30.5 inch 
ridge builds from the canadian prairies into the upper midwest. the 
ridge dwindles to 30.0 inches by thursday, but the pattern remains 
persistent into friday. weak ridging of 30.0 inches eventually 
pushes into lake superior by saturday, before the parent high of 
30.3 inches moves into the upper great lakes by sunday. in its wake, 
a weakening 29.8 inch low moves through the upper great lakes on 
monday.



lsz267-010900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est wed dec 31 2025

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

.late this afternoon...northwest gales to 45 knots. heavy
freezing spray. snow showers. waves 10 to 14 feet occasionally to
18 feet building to 11 to 15 feet occasionally to 19 feet. 
.tonight...northwest gales to 40 knots. heavy freezing spray.
numerous snow showers. waves subsiding to 10 to 14 feet
occasionally to 18 feet, then building to 11 to 15 feet
occasionally to 19 feet. 
.thursday...northwest gales to 40 knots. heavy freezing spray.
scattered snow showers in the morning. numerous snow showers in
the afternoon. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.thursday night...northwest gales to 35 knots. freezing spray.
snow showers likely in the evening. a chance of snow showers
after midnight. waves subsiding to 7 to 10 feet occasionally to
13 feet. 
.friday...northwest winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. freezing spray. a chance of snow
showers. waves building to 7 to 11 feet occasionally to 14 feet. 
.friday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. freezing spray. a chance of snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...northwest winds 10 to 20 knots. a chance of snow
showers in the morning, then snow showers likely in the
afternoon. waves subsiding to 3 to 5 feet occasionally to 7 feet.
.saturday night...northwest winds 15 to 25 knots. freezing spray.
a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...northwest winds 15 to 25 knots backing southwest. a
chance of snow showers, then snow showers likely. waves subsiding
to 2 to 4 feet. 
.monday...west winds 10 to 20 knots. a chance of snow showers.
waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$