fzus61 kbuf 310902
glflo 
expires:202512311600;;541564

open lake forecast for lake ontario
national weather service buffalo ny
402 am est wed dec 31 2025

for waters beyond five nautical miles of shore on lake ontario

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 29.8 inch low will pass just north of lake ontario 
this afternoon before reaching the saint lawrence valley tonight. a 
secondary 29.6 inch coastal low will develop over the gulf of maine 
thursday morning, with this low deepening to 28.8 inches as it moves 
north across the canadian maritimes thursday night through friday, 
then to northern quebec by saturday. a 30.3 inch high will then 
build from the western great lakes sunday to the lower great lakes 
by early monday.


loz062-311600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est wed dec 31 2025

.today...west winds 15 to 25 knots. a chance of snow showers this
morning, then snow showers likely early this afternoon. lake
effect snow late. waves 5 to 9 feet subsiding to 4 to 6 feet.
waves occasionally around 11 feet. 
.tonight...northwest winds 15 to 20 knots. lake effect snow
early, then lake effect snow showers likely late in the evening.
a chance of snow showers after midnight. waves 3 to 5 feet. 
.thursday...northwest winds 15 to 25 knots becoming west. lake
effect snow showers likely. waves 3 to 5 feet building to 3 to
6 feet. 
.thursday night...west winds 20 to 25 knots. lake effect snow
showers likely. waves 5 to 8 feet. waves occasionally around
10 feet. 
.friday...west winds 20 to 25 knots. snow showers likely during
the day, then a chance of snow showers friday night. waves 5 to
8 feet. waves occasionally around 10 feet. 
.saturday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of snow showers. waves 3 to 6 feet subsiding
to 1 to 2 feet. 
.sunday...west winds 10 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kbuf 310902
glflo 
expires:202512311600;;541565

open lake forecast for lake ontario
national weather service buffalo ny
402 am est wed dec 31 2025

for waters beyond five nautical miles of shore on lake ontario

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 29.8 inch low will pass just north of lake ontario 
this afternoon before reaching the saint lawrence valley tonight. a 
secondary 29.6 inch coastal low will develop over the gulf of maine 
thursday morning, with this low deepening to 28.8 inches as it moves 
north across the canadian maritimes thursday night through friday, 
then to northern quebec by saturday. a 30.3 inch high will then 
build from the western great lakes sunday to the lower great lakes 
by early monday.


loz063>065-311600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am est wed dec 31 2025

.today...west winds 15 to 25 knots. lake effect snow. waves 6 to
10 feet subsiding to 3 to 6 feet. waves occasionally around
13 feet. 
.tonight...northwest winds 15 to 20 knots. lake effect snow in
the evening, then lake effect snow showers likely after midnight.
a chance of snow showers late. waves 3 to 6 feet. 
.thursday...northwest winds 15 to 20 knots becoming west. lake
effect snow showers. waves 3 to 6 feet. 
.thursday night...west winds 15 to 25 knots. lake effect snow
showers. waves 5 to 8 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.friday...west winds 15 to 25 knots becoming northwest. lake
effect snow showers. waves 6 to 10 feet subsiding to 5 to 8 feet.
waves occasionally around 13 feet. 
.saturday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers. waves 4 to 7 feet subsiding
to 1 to 3 feet. waves occasionally around 9 feet. 
.sunday...west winds 10 to 15 knots. a chance of snow showers.
waves 1 to 3 feet. 

$$

fzus61 kcle 310902
glfle 
expires:202512311515;;541559

open lake forecast for lake erie
national weather service cleveland oh
402 am est wed dec 31 2025

for waters beyond five nautical miles of shore on lake erie

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 trough averaging 29.70 inches moves southeast across lake erie 
this morning, followed by a cold front this evening. a surface 
trough averaging 29.80 inches lingers across the lake into friday.
high pressure 30.10 inches builds into the great lakes over the 
weekend.


lez162>164-311515-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
402 am est wed dec 31 2025

.today...west winds 15 to 25 knots. a slight chance of snow this
morning, then a chance of snow early this afternoon. snow likely
late. waves 2 to 4 feet building to 3 to 5 feet. 
.tonight...west winds 15 to 25 knots becoming northwest. a chance
of snow in the evening. waves 3 to 6 feet subsiding to 2 to
4 feet. 
.thursday...west winds 15 to 20 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 1 to 3 feet. 
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 
.sunday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 

$$

fzus61 kcle 310902
glfle 
expires:202512311515;;541560

open lake forecast for lake erie
national weather service cleveland oh
402 am est wed dec 31 2025

for waters beyond five nautical miles of shore on lake erie

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 trough averaging 29.70 inches moves southeast across lake erie 
this morning, followed by a cold front this evening. a surface 
trough averaging 29.80 inches lingers across the lake into friday.
high pressure 30.10 inches builds into the great lakes over the 
weekend.


lez165>167-311515-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
402 am est wed dec 31 2025

.today...west winds 15 to 25 knots increasing to 30 knots. a
chance of snow through early afternoon, then snow late. waves
5 to 8 feet. waves occasionally around 10 feet. 
.tonight...west winds to 30 knots becoming northwest. snow early,
then a chance of snow late in the evening. waves 5 to 9 feet.
waves occasionally around 11 feet. 
.thursday...northwest winds 15 to 25 knots becoming west. waves
4 to 7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.thursday night...west winds 15 to 20 knots. a chance of snow.
waves 3 to 6 feet. 
.friday...west winds 15 to 20 knots becoming northwest. waves
3 to 6 feet subsiding to 2 to 4 feet. 
.saturday...northwest winds 5 to 15 knots becoming west. waves
1 to 3 feet. 
.sunday...west winds 5 to 15 knots becoming southwest. waves 1 to
3 feet. 

$$

fzus61 kcle 310902
glfle 
expires:202512311515;;541561

open lake forecast for lake erie
national weather service cleveland oh
402 am est wed dec 31 2025

for waters beyond five nautical miles of shore on lake erie

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 trough averaging 29.70 inches moves southeast across lake erie 
this morning, followed by a cold front this evening. a surface 
trough averaging 29.80 inches lingers across the lake into friday.
high pressure 30.10 inches builds into the great lakes over the 
weekend.


lez061-168-169-311515-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
402 am est wed dec 31 2025

.today...west winds 15 to 25 knots increasing to 30 knots. a
chance of snow early, then snow from late morning on. waves 5 to
8 feet. waves occasionally around 10 feet. 
.tonight...west winds to 30 knots becoming northwest. snow in the
evening, then a chance of snow after midnight. a slight chance of
snow late. waves 5 to 9 feet. waves occasionally around 11 feet. 
.thursday...northwest winds 15 to 20 knots becoming west. a
chance of snow. waves 5 to 8 feet subsiding to 3 to 5 feet. waves
occasionally around 10 feet. 
.thursday night...west winds 15 to 20 knots. a chance of snow in
the evening, then snow likely overnight. waves 4 to 6 feet. 
.friday...west winds 15 to 25 knots. a chance of snow during the
day. waves 4 to 7 feet subsiding to 3 to 5 feet. waves
occasionally around 9 feet. 
.saturday...west winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.sunday...west winds 10 to 15 knots becoming southwest. waves
1 to 2 feet. 

$$

fzus63 kdtx 310821
glfsc 
expires:202512311630;;539659

lake st clair forecast
national weather service detroit/pontiac mi
321 am est wed dec 31 2025

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a weak low pressure system, 30.00 inches, will track
along a stationary front which is draped across lake superior and
lake huron tonight. a second system will drop through the region
along the stalled front wednesday evening which will reinforce
the arctic airmass and bring borderline gales across lake huron
wednesday late afternoon and early evening.


lcz460-311630-
lake st clair-
321 am est wed dec 31 2025

.today...west winds 10 to 15 knots increasing to 15 to 20 knots late
in the afternoon. light snow in the afternoon. waves 2 feet or less.
.tonight...northwest winds 15 to 20 knots diminishing to 10 to 15
knots early in the morning. mostly cloudy this evening becoming
mostly clear. light snow early in the evening...then a chance of
light snow by midnight. waves 1 to 3 feet.
.thursday...west winds 10 to 15 knots. mostly sunny. waves 2 feet or
less.
.thursday night...west winds 10 to 15 knots. partly cloudy early in
the evening becoming mostly cloudy. waves 2 feet or less.
.friday...west winds 10 to 15 knots. mostly cloudy becoming mostly
clear. waves 2 feet or less.
.saturday...west winds 5 to 10 knots. partly cloudy. waves 2 feet or
less.
.sunday...southwest winds 5 to 10 knots. partly cloudy. waves 2 feet
or less.

$$

fzus63 kdtx 310820
glflh 
expires:202512311630;;539610

open lake forecast for lake huron
national weather service detroit/pontiac mi
320 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 weak low pressure system, 30.00 inches, will track
along a stationary front which is draped across lake superior and
lake huron tonight. a second system will drop through the region
along the stalled front wednesday evening which will reinforce
the arctic airmass and bring borderline gales across lake huron
wednesday late afternoon and early evening.


lhz361-311630-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
320 am est wed dec 31 2025

.today...northwest winds 15 to 20 knots increasing to 20 to
25 knots late in the afternoon. a chance of snow. waves 4 to
6 feet. waves occasionally around 8 feet. 
.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 early in the morning. waves 6 to
9 feet. waves occasionally around 12 feet. 
.thursday...west winds 20 to 25 knots. gusts to 30 knots in the
late morning and afternoon. waves 6 to 9 feet. waves occasionally
around 12 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...northwest winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.sunday...west winds 10 to 15 knots decreasing to 5 to 10 knots.
a chance of snow by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 310820
glflh 
expires:202512311630;;539612

open lake forecast for lake huron
national weather service detroit/pontiac mi
320 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 weak low pressure system, 30.00 inches, will track
along a stationary front which is draped across lake superior and
lake huron tonight. a second system will drop through the region
along the stalled front wednesday evening which will reinforce
the arctic airmass and bring borderline gales across lake huron
wednesday late afternoon and early evening.


lhz462>464-311630-
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-
320 am est wed dec 31 2025

.today...west winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to around 30 knots late in the afternoon. a chance of
snow 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 after midnight. snow 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 4 to 6 feet subsiding to 2 to 4 feet. waves
occasionally around 8 feet. 
.sunday...west winds 10 to 15 knots. a chance of. waves 1 to
3 feet. 


$$

fzus63 kdtx 310820
glflh 
expires:202512311630;;539611

open lake forecast for lake huron
national weather service detroit/pontiac mi
320 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 weak low pressure system, 30.00 inches, will track
along a stationary front which is draped across lake superior and
lake huron tonight. a second system will drop through the region
along the stalled front wednesday evening which will reinforce
the arctic airmass and bring borderline gales across lake huron
wednesday late afternoon and early evening.


lhz362-363-311630-
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-
320 am est wed dec 31 2025

.today...northwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots late in the afternoon. a
chance of snow 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 subsiding to 2 to 4 feet by
midnight. waves occasionally around 8 feet. 
.sunday...west winds 10 to 15 knots. a chance of snow by
midnight. waves 2 to 4 feet. 


$$

fzus63 kmkx 310909
glflm 
expires:202512311630;;542252

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am 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...

northwesterly winds prevail across the lake today as strong low
pressure around 28.2 inches meanders back into the hudson bay 
region. extending off of this low is a secondary cold front that 
is expected to slide down across the lake through the day with 
increasing northwesterly gusts behind it into this evening. 
cannot rule out seeing a few gales across the far northern 
portions of lake michigan this evening, but this window looks 
brief. thus have held off on any gale headlines at this time. 
however, with the colder airmass and gusty winds behind the cold 
front, moderate freezing spray will be a concern overnight into 
new years day. then winds slowly lessen through thursday as high 
pressure around 30.3 inches builds down across the upper midwest 
thursday through the weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-311630-
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-
309 am cst wed dec 31 2025

sheboygan wi to pentwater mi south...

.today...northwest winds 15 to 25 kt increasing to 30 kt. slight
chance of light freezing rain and snow this morning, then chance
of snow and rain likely this afternoon. waves 4 to 7 ft
occasionally to 9 ft building to 8 to 11 ft occasionally to
14 ft. 
.tonight...northwest winds to 30 kt diminishing to 15 to 25 kt.
freezing spray. chance of snow and light freezing rain in the
evening, then slight chance of light freezing rain and snow
overnight. waves 8 to 12 ft occasionally to 16 ft subsiding to
7 to 10 ft occasionally to 13 ft. 
.thursday...northwest winds 15 to 25 kt becoming west 10 to
20 kt. freezing spray in the morning. waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.thursday night...west winds 10 to 20 kt increasing to 15 to
25 kt. waves 4 to 7 ft occasionally to 9 ft. 
.friday...northwest winds 10 to 20 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.friday night...northwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.saturday...northwest winds 10 to 15 kt. waves 2 to 4 ft. 
.sunday...west winds 10 to 15 kt becoming southwest. waves 2 to
4 ft.  

$$

fzus63 kmkx 310909
glflm 
expires:202512311630;;542251

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am 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...

northwesterly winds prevail across the lake today as strong low
pressure around 28.2 inches meanders back into the hudson bay 
region. extending off of this low is a secondary cold front that 
is expected to slide down across the lake through the day with 
increasing northwesterly gusts behind it into this evening. 
cannot rule out seeing a few gales across the far northern 
portions of lake michigan this evening, but this window looks 
brief. thus have held off on any gale headlines at this time. 
however, with the colder airmass and gusty winds behind the cold 
front, moderate freezing spray will be a concern overnight into 
new years day. then winds slowly lessen through thursday as high 
pressure around 30.3 inches builds down across the upper midwest 
thursday through the weekend.


lmz261-362-364-366-563-565-567-868-311630-
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-
309 am cst wed dec 31 2025

sheboygan wi to pentwater mi north...

.today...northwest winds 15 to 25 kt increasing to 30 kt. chance
of snow. freezing spray this afternoon. waves 3 to 5 ft building
to 7 to 10 ft occasionally to 13 ft. 
.tonight...northwest winds to 30 kt. freezing spray. chance of
snow and slight chance of light freezing rain in the evening,
then slight chance of light freezing rain and snow overnight.
waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.thursday...northwest winds to 30 kt becoming west. freezing
spray in the morning. chance of light freezing rain in the
afternoon. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.thursday night...west winds to 30 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.friday...northwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.friday night...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.saturday...northwest winds 10 to 20 kt becoming west. waves 2 to
4 ft. 
.sunday...northwest winds 10 to 15 kt becoming west. waves 1 to
3 ft.  

$$

fzus63 kmqt 310901
glfls 
expires:202512312100;;541393

open lake forecast for lake superior
national weather service marquette mi
401 am 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 low strengthens to 29.3 inches while retrograding toward hudson 
bay today, a 30.7 inch ridge will build from the canadian prairies 
into the upper mississippi valley. the ridge will weaken to 30.2 
inches through thursday, but the pattern will remain persistent 
into friday.



lsz162-312100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am est wed dec 31 2025 /301 am cst wed dec 31 2025/

.early this morning...northwest winds 15 to 25 knots. a slight
chance of snow showers. waves 1 to 3 feet. 
.today...northwest winds 15 to 25 knots increasing to 20 to
30 knots. a slight chance of snow showers in the morning. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 15 to 25 knots. a slight chance of snow
showers. waves 2 to 4 feet. 
.thursday night...west winds 15 to 25 knots. a slight chance of
snow showers in the evening. waves 2 to 4 feet. 
.friday...west winds 15 to 25 knots. waves 2 to 4 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...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.sunday...west winds 5 to 15 knots. a chance of snow showers.
waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310901
glfls 
expires:202512312100;;541394

open lake forecast for lake superior
national weather service marquette mi
401 am 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 low strengthens to 29.3 inches while retrograding toward hudson 
bay today, a 30.7 inch ridge will build from the canadian prairies 
into the upper mississippi valley. the ridge will weaken to 30.2 
inches through thursday, but the pattern will remain persistent 
into friday.



lsz263-312100-
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-
401 am est wed dec 31 2025

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

.early this morning...northwest winds 15 to 25 knots. freezing
spray. a chance of snow showers. waves 3 to 5 feet occasionally
to 7 feet. 
.today...northwest winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible by mid
afternoon. a chance of snow showers in the morning. heavy
freezing spray. waves building to 5 to 8 feet occasionally to
10 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. waves subsiding to 4 to 8 feet
occasionally to 10 feet. 
.thursday...northwest winds 20 to 30 knots backing west. heavy
freezing spray. a chance of snow showers. waves 5 to 8 feet
occasionally to 10 feet. 
.thursday night...west winds 20 to 30 knots veering northwest
after midnight. 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 backing west in the
afternoon. freezing spray. waves 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. waves subsiding to
calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing west. a chance of
snow showers. waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310901
glfls 
expires:202512312100;;541395

open lake forecast for lake superior
national weather service marquette mi
401 am 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 low strengthens to 29.3 inches while retrograding toward hudson 
bay today, a 30.7 inch ridge will build from the canadian prairies 
into the upper mississippi valley. the ridge will weaken to 30.2 
inches through thursday, but the pattern will remain persistent 
into friday.



lsz264-312100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am est wed dec 31 2025

...heavy freezing spray warning in effect through thursday
evening...
...gale warning in effect from 10 am est this morning through
thursday evening...

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310901
glfls 
expires:202512312100;;541396

open lake forecast for lake superior
national weather service marquette mi
401 am 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 low strengthens to 29.3 inches while retrograding toward hudson 
bay today, a 30.7 inch ridge will build from the canadian prairies 
into the upper mississippi valley. the ridge will weaken to 30.2 
inches through thursday, but the pattern will remain persistent 
into friday.



lsz265-312100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am est wed dec 31 2025

...heavy freezing spray warning in effect through thursday
evening...
...gale warning in effect from 10 am est this morning through
thursday evening...

.early this morning...northwest winds 20 to 30 knots. freezing
spray. a chance of snow showers. waves 3 to 6 feet occasionally
to 8 feet building to 4 to 7 feet occasionally to 9 feet. 
.today...northwest gales to 40 knots. heavy freezing spray. snow
showers likely in the morning. a chance of snow showers in the
afternoon. waves building to 9 to 12 feet occasionally to
15 feet. 
.tonight...northwest gales to 40 knots. heavy freezing spray. a
slight chance of snow showers. waves subsiding to 8 to 11 feet
occasionally to 14 feet. 
.thursday...northwest gales to 40 knots backing west. heavy
freezing spray. a chance of snow showers. waves subsiding to 5 to
8 feet occasionally to 10 feet. 
.thursday night...west gales to 35 knots veering northwest after
midnight. freezing spray. a chance of snow showers. waves
building to 6 to 9 feet occasionally to 11 feet. 
.friday...northwest gales to 40 knots. heavy freezing spray.
waves 6 to 9 feet occasionally to 11 feet. 
.friday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. freezing spray. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to calm to 2 feet. 
.sunday...west winds 10 to 20 knots. a chance of snow showers.
waves calm to 2 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310901
glfls 
expires:202512312100;;541397

open lake forecast for lake superior
national weather service marquette mi
401 am 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 low strengthens to 29.3 inches while retrograding toward hudson 
bay today, a 30.7 inch ridge will build from the canadian prairies 
into the upper mississippi valley. the ridge will weaken to 30.2 
inches through thursday, but the pattern will remain persistent 
into friday.



lsz266-312100-
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-
401 am est wed dec 31 2025

...heavy freezing spray warning in effect through thursday
evening...
...gale warning in effect from 10 am est this morning through
thursday evening...

.early this morning...northwest winds 20 to 30 knots. freezing
spray. snow showers likely. waves 5 to 8 feet occasionally to
10 feet. 
.today...northwest gales to 45 knots. heavy freezing spray. snow
showers likely. waves building to 12 to 17 feet occasionally to
21 feet. 
.tonight...northwest gales to 45 knots. heavy freezing spray. a
chance of snow showers. waves subsiding to 11 to 15 feet
occasionally to 19 feet. 
.thursday...northwest gales to 35 knots backing west by mid
afternoon. heavy freezing spray. a chance of snow showers. waves
subsiding to 10 to 14 feet occasionally to 18 feet. 
.thursday night...west gales to 35 knots veering northwest after
midnight. freezing spray. a chance of snow showers. waves
subsiding to 8 to 11 feet occasionally to 14 feet. 
.friday...northwest gales to 35 knots. freezing spray. a chance
of snow showers. waves building to 10 to 14 feet occasionally to
18 feet. 
.friday night...northwest gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday...northwest winds 15 to 25 knots. freezing spray. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots backing west. a chance
of snow showers. waves 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 310901
glfls 
expires:202512312100;;541398

open lake forecast for lake superior
national weather service marquette mi
401 am 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 low strengthens to 29.3 inches while retrograding toward hudson 
bay today, a 30.7 inch ridge will build from the canadian prairies 
into the upper mississippi valley. the ridge will weaken to 30.2 
inches through thursday, but the pattern will remain persistent 
into friday.



lsz267-312100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am est wed dec 31 2025

...heavy freezing spray warning in effect through thursday
evening...
...gale warning in effect from 10 am est this morning through
thursday evening...

.early this morning...northwest winds 20 to 30 knots. freezing
spray. a chance of snow showers. waves 4 to 8 feet occasionally
to 10 feet. 
.today...northwest gales to 35 knots veering north by late
morning, then becoming northwest gales to 40 knots by mid
afternoon. heavy freezing spray. snow showers likely. waves
building to 11 to 15 feet occasionally to 19 feet. 
.tonight...northwest gales to 40 knots. heavy freezing spray.
snow showers likely. 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 35 knots becoming west gales to
40 knots by mid afternoon. heavy freezing spray. a chance of snow
showers. a slight chance of sleet in the afternoon. waves
subsiding to 10 to 14 feet occasionally to 18 feet. 
.thursday night...west gales to 35 knots veering northwest after
midnight. freezing spray. snow showers likely. waves subsiding to
9 to 12 feet occasionally to 15 feet. 
.friday...northwest gales to 35 knots. freezing spray. a chance
of snow showers in the morning. snow showers likely in the
afternoon. waves building to 10 to 14 feet occasionally to
18 feet. 
.friday night...northwest gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. snow showers likely in
the evening. a chance of snow showers after midnight. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday...northwest winds 15 to 25 knots. freezing spray. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots backing west. a chance
of snow showers. waves 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$