fzus61 kbuf 250302
glflo 
expires:202512251000;;173408

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed dec 24 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 30.3 inch surface high draped across the lower great lakes will 
slide southeast and off the mid-atlantic coast tonight. meanwhile a 
weak surface low will slide from southern quebec to new england 
later tonight and christmas day, with its trailing cold front 
crossing the lake christmas morning. following the frontal passage, 
a strong 30.6 inch high over ontario will build across the lake 
christmas night. the high will then drift into quebec friday while a 
compact 29.7 inch low slides across ohio and pennsylvania, with the 
high then building back across the lake saturday. complex low 
pressure averaging 29.6 inches will then cross the lower great lakes 
later sunday and sunday night, before moving to the canadian 
maritimes monday.


loz062-251000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est wed dec 24 2025

.overnight...southwest winds 10 to 15 knots becoming west.
waves 2 feet or less. 
.thursday...west winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet. 
.thursday night...north winds 15 to 20 knots becoming east. waves
2 to 4 feet. 
.friday...east winds 15 to 25 knots increasing to 30 knots. a
chance of snow showers in the morning, then snow in the
afternoon. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.friday night...east winds to 30 knots diminishing to 15 to
20 knots. snow. waves 5 to 8 feet. waves occasionally around
10 feet. 
.saturday...east winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 1 to 2 feet. 
.sunday...east winds around 10 knots becoming southwest and
increasing to 30 knots. rain showers likely during the day, then
rain showers sunday night. waves 1 to 2 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 40 knots becoming northwest to 35 knots.
lake effect snow and rain showers during the day, then lake
effect snow showers monday night. waves 12 to 16 feet building to
13 to 18 feet, then subsiding to 11 to 15 feet. waves
occasionally around 23 feet. 

$$

fzus61 kbuf 250302
glflo 
expires:202512251000;;173410

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed dec 24 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 30.3 inch surface high draped across the lower great lakes will 
slide southeast and off the mid-atlantic coast tonight. meanwhile a 
weak surface low will slide from southern quebec to new england 
later tonight and christmas day, with its trailing cold front 
crossing the lake christmas morning. following the frontal passage, 
a strong 30.6 inch high over ontario will build across the lake 
christmas night. the high will then drift into quebec friday while a 
compact 29.7 inch low slides across ohio and pennsylvania, with the 
high then building back across the lake saturday. complex low 
pressure averaging 29.6 inches will then cross the lower great lakes 
later sunday and sunday night, before moving to the canadian 
maritimes monday.


loz064-065-251000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est wed dec 24 2025

.overnight...southwest winds 5 to 15 knots. waves 1 to
3 feet. 
.thursday...west winds 10 to 15 knots becoming north and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 3 to
6 feet. 
.thursday night...north winds 15 to 25 knots becoming northeast
and diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.friday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. snow likely in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet. 
.friday night...east winds 15 to 20 knots. snow. waves 2 to
4 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of snow showers during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots becoming south and
increasing to 30 knots. rain showers likely during the day, then
rain showers sunday night. waves 1 to 3 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 40 knots becoming northwest. lake effect
snow and rain showers during the day, then lake effect snow
showers monday night. waves 13 to 17 feet building to 16 to
21 feet, then subsiding to 15 to 19 feet. waves occasionally
around 27 feet. 

$$

fzus61 kbuf 250302
glflo 
expires:202512251000;;173409

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed dec 24 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 30.3 inch surface high draped across the lower great lakes will 
slide southeast and off the mid-atlantic coast tonight. meanwhile a 
weak surface low will slide from southern quebec to new england 
later tonight and christmas day, with its trailing cold front 
crossing the lake christmas morning. following the frontal passage, 
a strong 30.6 inch high over ontario will build across the lake 
christmas night. the high will then drift into quebec friday while a 
compact 29.7 inch low slides across ohio and pennsylvania, with the 
high then building back across the lake saturday. complex low 
pressure averaging 29.6 inches will then cross the lower great lakes 
later sunday and sunday night, before moving to the canadian 
maritimes monday.


loz063-251000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est wed dec 24 2025

.overnight...southwest winds 10 to 15 knots. waves 1 to
2 feet. 
.thursday...west winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.thursday night...north winds 15 to 20 knots becoming northeast
10 to 15 knots. waves 3 to 5 feet. 
.friday...east winds 15 to 25 knots. snow likely in the
afternoon. waves 3 to 6 feet. 
.friday night...east winds 15 to 20 knots. snow. waves 3 to
6 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 2 feet. 
.sunday...southeast winds 10 to 15 knots becoming southwest and
increasing to 30 knots. rain showers likely during the day, then
rain showers sunday night. waves 1 to 3 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 45 knots becoming northwest to 40 knots.
lake effect snow and rain showers during the day, then lake
effect snow showers monday night. waves 13 to 17 feet building to
15 to 20 feet. waves occasionally around 26 feet. 

$$

fzus61 kcle 250753
glfle 
expires:202512251515;;184584

open lake forecast for lake erie
national weather service cleveland oh
253 am est thu dec 25 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 ridge averaging 30.20 inches builds across the great lakes today.
low pressure 29.60 inches moves east across the ohio valley 
friday into friday night. a ridge averaging 30.10 inches briefly 
builds across the area on saturday. low pressure 29.60 inches 
deepens to 29.30 inches while moving northeast from the ohio 
valley into the eastern great lakes late sunday into monday while 
dragging a cold front east across the area.


lez061-167>169-251515-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
253 am est thu dec 25 2025

.today...west winds 5 to 15 knots becoming north. waves 1 to
3 feet. 
.tonight...northeast winds 15 to 20 knots becoming east. waves
2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots. rain likely with a chance of
snow in the morning, then rain and snow in the afternoon. waves
3 to 5 feet subsiding to 2 to 4 feet. 
.friday night...east winds 10 to 15 knots becoming north. a
chance of rain in the evening, then a chance of freezing rain
overnight. waves 1 to 3 feet. 
.saturday...northeast winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 10 to 15 knots becoming west and
increasing to 35 knot gales. rain. waves 2 feet or less building
to 8 to 11 feet. waves occasionally around 14 feet. 
.monday...west gales to 40 knots diminishing to 35 knots. snow
and rain likely during the day, then snow likely monday night.
waves 10 to 15 feet. waves occasionally around 19 feet. 

$$

fzus61 kcle 250753
glfle 
expires:202512251515;;184583

open lake forecast for lake erie
national weather service cleveland oh
253 am est thu dec 25 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 ridge averaging 30.20 inches builds across the great lakes today.
low pressure 29.60 inches moves east across the ohio valley 
friday into friday night. a ridge averaging 30.10 inches briefly 
builds across the area on saturday. low pressure 29.60 inches 
deepens to 29.30 inches while moving northeast from the ohio 
valley into the eastern great lakes late sunday into monday while 
dragging a cold front east across the area.


lez164>166-251515-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
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-
253 am est thu dec 25 2025

.today...northwest winds 5 to 15 knots becoming northeast. waves
1 to 3 feet. 
.tonight...northeast winds 15 to 20 knots becoming east. waves
2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 25 knots. a chance of rain and snow in
the morning, then rain in the afternoon. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.friday night...north winds 5 to 15 knots. rain in the evening.
waves 1 to 3 feet. 
.saturday...northeast winds 5 to 15 knots becoming southeast. a
chance of rain saturday night. waves 1 to 2 feet. 
.sunday...southeast winds 10 to 15 knots becoming west and
increasing to 35 knot gales. rain. waves 1 to 2 feet building to
8 to 11 feet. waves occasionally around 14 feet. 
.monday...west gales to 40 knots. a chance of snow and rain
during the day, then a chance of snow monday night. waves 9 to
13 feet subsiding to 8 to 11 feet. waves occasionally around
16 feet. 

$$

fzus61 kcle 250753
glfle 
expires:202512251515;;184582

open lake forecast for lake erie
national weather service cleveland oh
253 am est thu dec 25 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 ridge averaging 30.20 inches builds across the great lakes today.
low pressure 29.60 inches moves east across the ohio valley 
friday into friday night. a ridge averaging 30.10 inches briefly 
builds across the area on saturday. low pressure 29.60 inches 
deepens to 29.30 inches while moving northeast from the ohio 
valley into the eastern great lakes late sunday into monday while 
dragging a cold front east across the area.


lez162-163-251515-
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-
253 am est thu dec 25 2025

.today...northwest winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.tonight...northeast winds 10 to 15 knots becoming east 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...east winds 15 to 20 knots diminishing to 10 to
15 knots. freezing rain and rain. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.friday night...north winds 5 to 10 knots. rain likely in the
evening. waves 1 to 3 feet. 
.saturday...northeast winds 5 to 10 knots becoming southeast. a
chance of rain saturday night. waves 1 foot or less. 
.sunday...southeast winds 10 to 15 knots becoming west and
increasing to 30 knots. rain. waves 2 feet or less building to
3 to 5 feet. 
.monday...west winds to 30 knots. a chance of snow during the
day. waves 3 to 5 feet subsiding to 2 to 4 feet. 

$$

fzus63 kdtx 250257
glfsc 
expires:202512251100;;173008

lake st clair forecast
national weather service detroit/pontiac mi
957 pm est wed dec 24 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...high pressure, 30.50 inches, will move over the james
bay region on thursday. weaker winds will continue through
thursday morning before northerly winds increase as a low pressure
system slides east on friday with wintry precipitation.


lcz460-251100-
lake st clair-
957 pm est wed dec 24 2025

.rest of tonight...south winds 5 to 10 knots by midnight becoming
light and variable. mostly cloudy. a chance of drizzle after
midnight. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots becoming north 10 to 15
knots in the late morning and afternoon. partly sunny. waves 2 feet
or less.
.thursday night...northeast winds 10 to 15 knots becoming east 15 to
20 knots after midnight. mostly cloudy. waves 2 feet or less.
.friday...east winds 15 to 20 knots diminishing to 10 to 15 knots
early in the afternoon. light snow and freezing rain early in the
morning...then freezing rain and light rain in the late morning and
afternoon. waves 1 to 3 feet.
.friday night...north winds 5 to 10 knots. cloudy becoming partly
cloudy. waves 2 feet or less.
.saturday...northeast winds 5 to 10 knots veering to the east in the
afternoon and evening. partly sunny in the morning becoming mostly
cloudy. waves 2 feet or less.
.sunday...west winds 20 to 25 knots with gusts to 30 knots. cloudy
with light rain likely. waves 2 to 4 feet. a small craft advisory
may be needed.
.monday...northwest winds to 30 knots with gusts to 40 knot gales.
mostly cloudy with light rain likely and a chance of light snow.
waves 3 to 5 feet. waves occasionally around 7 feet.  a gale warning
may be needed.

wave heights are for ice free areas.

$$

fzus63 kdtx 250255
glflh 
expires:202512251100;;173000

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 pm est wed dec 24 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.50 inches, will move over the james
bay region on thursday. weaker winds will continue through
thursday morning before northerly winds increase as a low pressure
system slides east on friday with wintry precipitation.


lhz462>464-251100-
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-
955 pm est wed dec 24 2025

.rest of tonight...south winds 10 to 15 knots becoming southwest
5 to 10 knots early in the morning. waves 1 to 3 feet. 
.thursday...north winds 15 to 20 knots veering to the northeast
late in the afternoon. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.thursday night...northeast winds 15 to 20 knots veering to the
east after midnight. waves 4 to 6 feet. waves occasionally around
8 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots early in the afternoon.
snow and sleet in the morning...then snow...freezing rain and
sleet in the afternoon. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.friday night...east winds 10 to 15 knots becoming northeast 5 to
10 knots after midnight. waves 3 to 5 feet subsiding to 1 to
3 feet after midnight. 
.saturday...east winds 5 to 10 knots becoming southeast 10 to
15 knots late in the afternoon. waves 1 to 3 feet building to
2 to 4 feet late in the evening. 
.sunday...southeast winds 10 to 15 knots becoming south 15 to
20 knots early in the evening...then becoming west to 30 knots
with gusts to 40 knot gales by midnight. a chance of rain early
in the morning. rain likely. snow likely by midnight. waves 2 to
4 feet building to 12 to 16 feet. waves occasionally around
20 feet. 
.monday...northwest at 40 knot gales. gusts to 45 knot gales
increasing to 50 knots . snow likely until afternoon. a chance of
snow . waves 15 to 20 feet. waves occasionally around 25 feet. a
gale warning may be needed. 


$$

fzus63 kdtx 250255
glflh 
expires:202512251100;;172999

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 pm est wed dec 24 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.50 inches, will move over the james
bay region on thursday. weaker winds will continue through
thursday morning before northerly winds increase as a low pressure
system slides east on friday with wintry precipitation.


lhz362-363-251100-
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-
955 pm est wed dec 24 2025

.rest of tonight...southwest winds 10 to 15 knots veering to the
west early in the morning. waves 2 to 4 feet. 
.thursday...north winds 15 to 20 knots veering to the northeast
in the afternoon. waves 4 to 6 feet. waves occasionally around
8 feet. 
.thursday night...east winds 15 to 20 knots increasing to 20 to
25 knots after midnight. a chance of snow after midnight. waves
5 to 7 feet. waves occasionally around 10 feet. 
.friday...southeast winds 20 to 25 knots decreasing to 15 to
20 knots early in the afternoon. snow. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.friday night...east winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.saturday...southeast winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday...southeast winds 10 to 15 knots increasing to 15 to
20 knots early in the evening...then becoming west to 30 knots
with gusts to 35 knot gales by midnight. a chance of rain early
in the morning. snow likely. rain likely . waves 3 to 5 feet
building to 14 to 18 feet. waves occasionally around 23 feet. 
.monday...northwest at 40 knot gales with gusts to 45 knot gales.
a chance of snow. waves 15 to 20 feet. waves occasionally around
25 feet. a gale warning may be needed. 


$$

fzus63 kdtx 250255
glflh 
expires:202512251100;;172998

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 pm est wed dec 24 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.50 inches, will move over the james
bay region on thursday. weaker winds will continue through
thursday morning before northerly winds increase as a low pressure
system slides east on friday with wintry precipitation.


lhz361-251100-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
955 pm est wed dec 24 2025

.rest of tonight...southwest winds 5 to 10 knots becoming west
10 to 15 knots after midnight. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots veering to the northeast
in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet late
in the afternoon. 
.thursday night...east winds 15 to 20 knots becoming southeast
20 to 25 knots with gusts to around 30 knots after midnight. snow
likely after midnight. waves 2 to 4 feet building to 6 to 9 feet
in the late evening and overnight. waves occasionally around
12 feet. 
.friday...southeast winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots early in the afternoon.
snow. waves 8 to 12 feet. waves occasionally around 15 feet. 
.friday night...southeast winds 15 to 20 knots becoming east
10 to 15 knots in the late evening and overnight. waves 5 to
7 feet. waves occasionally around 10 feet. 
.saturday...southeast winds 10 to 15 knots. a chance of rain late
in the evening. waves 2 to 4 feet. 
.sunday...southeast winds 10 to 15 knots increasing to 15 to
20 knots early in the evening...then becoming northwest 20 to
25 knots with gusts to 35 knot gales by midnight. a chance of
rain early in the morning...then rain likely until early evening.
snow likely. waves 4 to 6 feet building to 12 to 16 feet . waves
occasionally around 20 feet. 
.monday...northwest winds to 30 knots increasing to 35 knot gales
early in the evening...then decreasing to 30 knots by midnight.
gusts to 40 knot gales. snow likely early in the morning...then a
chance of snow. waves 10 to 14 feet. waves occasionally around
18 feet. a gale warning may be needed. 


$$

fzus63 kmkx 250231
glflm 
expires:202512251030;;172336

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
831 pm cst wed dec 24 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...

north winds will develop tonight and thursday morning as high 
pressure of 30.5 inches noses into the region from the north. 
winds will then turn easterly thursday afternoon as the high moves
east, and then will become southeasterly thursday night and early
friday as low pressure of 29.7 inches moves across central 
illinois. 

stronger low pressure will affect the region late in the weekend
into monday, moving from the central plains into the eastern great
lakes. this will initially result in increasing southeast winds
saturday night and early sunday, followed by a good chance for
gales sunday night and monday as a strong cold front sweeps across
lake michigan. much colder air will also pose a risk for freezing
spray. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-251030-
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-
831 pm cst wed dec 24 2025

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 10 to 15 kt backing to north 10 to
20 kt. rain likely with areas of drizzle through early evening.
waves 2 to 4 ft. 
.thursday...northeast winds 15 to 25 kt becoming east 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft. 
.thursday night...east winds 15 to 25 kt becoming southeast to
30 kt. rain likely overnight. waves 4 to 7 ft occasionally to
9 ft building to 7 to 10 ft occasionally to 13 ft. 
.friday...southeast winds 15 to 25 kt backing to northeast 10 to
15 kt in the afternoon. rain in the morning. waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...north winds 5 to 10 kt becoming northeast. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.saturday night...southeast winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday...southwest winds 15 to 25 kt becoming northwest gales to
35 kt. chance of rain and snow. waves 3 to 5 ft building to 5 to
8 ft occasionally to 10 ft. 
.monday...northwest gales to 45 kt. freezing spray. chance of
snow. waves 12 to 16 ft occasionally to 21 ft.  

$$

fzus63 kmkx 250231
glflm 
expires:202512251030;;172335

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
831 pm cst wed dec 24 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...

north winds will develop tonight and thursday morning as high 
pressure of 30.5 inches noses into the region from the north. 
winds will then turn easterly thursday afternoon as the high moves
east, and then will become southeasterly thursday night and early
friday as low pressure of 29.7 inches moves across central 
illinois. 

stronger low pressure will affect the region late in the weekend
into monday, moving from the central plains into the eastern great
lakes. this will initially result in increasing southeast winds
saturday night and early sunday, followed by a good chance for
gales sunday night and monday as a strong cold front sweeps across
lake michigan. much colder air will also pose a risk for freezing
spray. 


lmz261-362-364-366-563-565-567-868-251030-
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-
831 pm cst wed dec 24 2025

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 15 kt veering to north
10 to 20 kt. patchy drizzle through early evening. waves 1 to
3 ft building to 2 to 4 ft. 
.thursday...north winds 15 to 25 kt becoming east 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft. 
.thursday night...east winds 15 to 25 kt becoming southeast to
30 kt. chance of snow, rain and light freezing rain overnight.
waves 4 to 6 ft occasionally to 8 ft building to 7 to 10 ft
occasionally to 13 ft. 
.friday...southeast winds to 30 kt diminishing to 15 to 25 kt.
snow, rain, light sleet and light freezing rain in the morning,
then chance of snow and rain in the afternoon. waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...east winds 10 to 15 kt becoming southeast 5 to
10 kt. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday night...southeast winds 10 to 20 kt. chance of rain and
light freezing rain. waves 2 to 4 ft. 
.sunday...south winds 10 to 20 kt veering to northwest to 30 kt.
chance of rain and snow. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.monday...northwest gales to 45 kt. freezing spray. chance of
snow. waves 10 to 14 ft occasionally to 18 ft.  

$$

fzus63 kmqt 250301
glfls 
expires:202512250900;;173263

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed dec 24 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...

weak 30.1 inch troughing over lake superior this evening will give 
way to 30.4 inch ridging on thursday as a 30.5 inch high transits 
northern ontario. low pressure of 29.7 inches moves east along the 
southern end of the great lakes basin on friday. another low of 29.6 
inches then lifts over lower michigan sunday while extending a 29.7 
inch trough northward across the lake. by monday, a strong high 
pressure of at least 30.6 inches will reside over the great plains 
as the low deepens to 29.1 inches over quebec, yielding a tight 
pressure gradient across the great lakes.



lsz263-250900-
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-
1000 pm est wed dec 24 2025

.rest of tonight...north winds 10 to 20 knots veering northeast
late. waves 1 to 3 feet building to 3 to 5 feet occasionally to
7 feet. 
.thursday...northeast winds 10 to 20 knots veering east by late
morning, then increasing to 15 to 25 knots by mid afternoon. a
chance of snow showers in the afternoon. waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...southeast winds 20 to 30 knots veering south
late. a chance of snow showers in the evening, then snow showers,
possibly mixed with rain and sleet after midnight. waves building
to 6 to 9 feet occasionally to 11 feet. 
.friday...south winds 15 to 25 knots becoming west 5 to 15 knots
in the afternoon. a chance of snow showers, possibly mixed with
rain and sleet in the morning. waves subsiding to 2 to 4 feet. 
.friday night...south winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.saturday...south winds 5 to 15 knots. waves building to 1 to
3 feet. 
.saturday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. a chance of rain showers. a chance
of snow showers after midnight. waves 1 to 3 feet. 
.sunday...west gales to 40 knots becoming northwest storm force
winds to 55 knots. a chance of rain showers. a chance of snow
showers. heavy freezing spray. waves building to 10 to 14 feet
occasionally to 18 feet. 
.monday...northwest storm force winds to 55 knots diminishing to
gales to 40 knots. heavy freezing spray. waves building to 11 to
15 feet occasionally to 19 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 250301
glfls 
expires:202512250900;;173262

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed dec 24 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...

weak 30.1 inch troughing over lake superior this evening will give 
way to 30.4 inch ridging on thursday as a 30.5 inch high transits 
northern ontario. low pressure of 29.7 inches moves east along the 
southern end of the great lakes basin on friday. another low of 29.6 
inches then lifts over lower michigan sunday while extending a 29.7 
inch trough northward across the lake. by monday, a strong high 
pressure of at least 30.6 inches will reside over the great plains 
as the low deepens to 29.1 inches over quebec, yielding a tight 
pressure gradient across the great lakes.



lsz162-250900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est wed dec 24 2025 /900 pm cst wed dec 24 2025/

.rest of tonight...north winds 10 to 20 knots becoming northeast
15 to 25 knots late. waves calm to 2 feet building to 2 to
4 feet. 
.thursday...northeast winds 15 to 25 knots veering east. a chance
of snow showers in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.thursday night...southeast winds 15 to 25 knots becoming south
10 to 20 knots late. a chance of snow showers in the evening. a
chance of sleet. snow showers, possibly mixed with freezing rain
after midnight. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet. 
.friday...south winds 5 to 15 knots veering west in the
afternoon. a chance of snow showers, possibly mixed with rain in
the morning. waves subsiding to calm to 2 feet. 
.friday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...south winds 5 to 15 knots backing southeast in the
afternoon. a chance of rain showers. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming west 10 to
20 knots after midnight. a chance of rain showers. waves building
to 1 to 3 feet. 
.sunday...northwest gales to 45 knots. a chance of rain showers.
a chance of snow showers. heavy freezing spray. waves building to
6 to 9 feet occasionally to 11 feet. 
.monday...northwest gales to 45 knots. heavy freezing spray.
waves subsiding to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 250301
glfls 
expires:202512250900;;173264

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed dec 24 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...

weak 30.1 inch troughing over lake superior this evening will give 
way to 30.4 inch ridging on thursday as a 30.5 inch high transits 
northern ontario. low pressure of 29.7 inches moves east along the 
southern end of the great lakes basin on friday. another low of 29.6 
inches then lifts over lower michigan sunday while extending a 29.7 
inch trough northward across the lake. by monday, a strong high 
pressure of at least 30.6 inches will reside over the great plains 
as the low deepens to 29.1 inches over quebec, yielding a tight 
pressure gradient across the great lakes.



lsz264-250900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est wed dec 24 2025

...gale warning in effect from late thursday night through friday
afternoon...

.rest of tonight...north winds 10 to 20 knots increasing to 15 to
25 knots by midnight. freezing spray after midnight. waves 2 to
4 feet building to 3 to 6 feet occasionally to 8 feet. 
.thursday...northeast winds 10 to 20 knots veering east by late
morning, then increasing to 15 to 25 knots by mid afternoon.
freezing spray in the morning. a chance of snow showers in the
afternoon. waves subsiding to 2 to 4 feet. 
.thursday night...southeast winds 20 to 30 knots increasing to
gales to 35 knots by midnight. snow showers likely in the
evening, then snow showers after midnight. waves building to 9 to
12 feet occasionally to 15 feet. 
.friday...south gales to 35 knots diminishing to 15 to 25 knots
in the afternoon. snow showers likely in the morning. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...south winds 5 to 15 knots. waves subsiding to
1 to 3 feet. 
.saturday...south winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...south winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. a chance of rain showers. a chance of
snow showers after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west gales to 40 knots becoming northwest storm force
winds to 60 knots. a chance of snow showers, possibly mixed with
rain, then snow showers likely. heavy freezing spray. waves
building to 15 to 20 feet occasionally to 25 feet. 
.monday...north storm force winds to 60 knots becoming northwest
storm force winds to 50 knots. heavy freezing spray. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 250301
glfls 
expires:202512250900;;173265

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed dec 24 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...

weak 30.1 inch troughing over lake superior this evening will give 
way to 30.4 inch ridging on thursday as a 30.5 inch high transits 
northern ontario. low pressure of 29.7 inches moves east along the 
southern end of the great lakes basin on friday. another low of 29.6 
inches then lifts over lower michigan sunday while extending a 29.7 
inch trough northward across the lake. by monday, a strong high 
pressure of at least 30.6 inches will reside over the great plains 
as the low deepens to 29.1 inches over quebec, yielding a tight 
pressure gradient across the great lakes.



lsz265-250900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est wed dec 24 2025

.rest of tonight...northwest winds 15 to 25 knots veering north
by midnight, then increasing to 20 to 30 knots late. waves calm
to 2 feet building to 3 to 6 feet occasionally to 8 feet. 
.thursday...northeast winds 15 to 25 knots veering east by late
morning, then increasing to 20 to 30 knots by mid afternoon. a
chance of snow showers in the afternoon. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. 
.thursday night...southeast winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible by
midnight. a chance of snow showers in the evening, then snow
showers, possibly mixed with sleet after midnight. waves building
to 7 to 10 feet occasionally to 13 feet. 
.friday...south gales to 35 knots diminishing to 15 to 25 knots
in the afternoon. snow showers likely in the morning, then a
slight chance of rain and snow showers in the afternoon. waves
subsiding to 2 to 4 feet. 
.friday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...south winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 2 to 4 feet. 
.saturday night...south winds 15 to 25 knots. a chance of rain
showers. a chance of snow showers after midnight. waves subsiding
to 1 to 3 feet. 
.sunday...west storm force winds to 50 knots becoming northwest
storm force winds to 60 knots. a chance of rain showers. snow
showers. heavy freezing spray. waves building to 15 to 20 feet
occasionally to 25 feet. 
.monday...northwest storm force winds to 60 knots. heavy freezing
spray. a chance of snow showers. waves building to 17 to 22 feet
occasionally to 28 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 250301
glfls 
expires:202512250900;;173266

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed dec 24 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...

weak 30.1 inch troughing over lake superior this evening will give 
way to 30.4 inch ridging on thursday as a 30.5 inch high transits 
northern ontario. low pressure of 29.7 inches moves east along the 
southern end of the great lakes basin on friday. another low of 29.6 
inches then lifts over lower michigan sunday while extending a 29.7 
inch trough northward across the lake. by monday, a strong high 
pressure of at least 30.6 inches will reside over the great plains 
as the low deepens to 29.1 inches over quebec, yielding a tight 
pressure gradient across the great lakes.



lsz266-250900-
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-
1000 pm est wed dec 24 2025

...gale warning in effect from late thursday night through friday
afternoon...

.rest of tonight...northwest winds 15 to 25 knots veering north
by midnight, then increasing to 20 to 30 knots late. freezing
spray after midnight. waves 2 to 4 feet building to 5 to 8 feet
occasionally to 10 feet. 
.thursday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots by late morning, then veering east by mid afternoon.
freezing spray in the morning. a slight chance of snow showers in
the afternoon. waves subsiding to 2 to 4 feet. 
.thursday night...southeast winds 20 to 30 knots increasing to
gales to 35 knots by midnight. freezing spray in the evening.
snow showers. waves building to 9 to 12 feet occasionally to
15 feet. 
.friday...southeast gales to 35 knots becoming south 15 to
25 knots in the afternoon. snow showers in the morning, then a
chance of snow showers in the afternoon. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.friday night...south winds 10 to 20 knots. a slight chance of
snow showers in the evening. waves subsiding to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...south winds 15 to 25 knots. a chance of rain
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...west gales to 45 knots becoming northwest storm force
winds to 60 knots. snow showers. freezing spray. waves building
to 20 to 25 feet occasionally to 31 feet. 
.monday...north storm force winds to 60 knots becoming northwest
storm force winds to 55 knots. heavy freezing spray. a chance of
snow showers. waves subsiding to 9 to 12 feet occasionally to
15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 250301
glfls 
expires:202512250900;;173267

open lake forecast for lake superior
national weather service marquette mi
1000 pm est wed dec 24 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...

weak 30.1 inch troughing over lake superior this evening will give 
way to 30.4 inch ridging on thursday as a 30.5 inch high transits 
northern ontario. low pressure of 29.7 inches moves east along the 
southern end of the great lakes basin on friday. another low of 29.6 
inches then lifts over lower michigan sunday while extending a 29.7 
inch trough northward across the lake. by monday, a strong high 
pressure of at least 30.6 inches will reside over the great plains 
as the low deepens to 29.1 inches over quebec, yielding a tight 
pressure gradient across the great lakes.



lsz267-250900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est wed dec 24 2025

...gale warning in effect from late thursday night through friday
afternoon...

.rest of tonight...west winds 15 to 25 knots veering northwest by
midnight, then becoming north 20 to 30 knots late. freezing spray
after midnight. waves 2 to 4 feet building to 4 to 7 feet
occasionally to 9 feet. 
.thursday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then veering east by mid afternoon.
freezing spray in the morning. waves subsiding to 1 to 3 feet. 
.thursday night...southeast winds 15 to 25 knots increasing to
gales to 40 knots by midnight. a chance of snow showers in the
evening, then snow showers after midnight. freezing spray after
midnight. waves building to 6 to 9 feet occasionally to 11 feet. 
.friday...southeast gales to 35 knots diminishing to 20 to
30 knots in the afternoon. snow showers in the morning, then a
chance of snow showers in the afternoon. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.friday night...southeast winds 15 to 25 knots. waves subsiding
to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots becoming southeast 20 to
30 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...southeast winds 20 to 30 knots veering south
after midnight. a chance of rain showers, possibly mixed with
snow in the evening, then rain and snow showers likely after
midnight. waves subsiding to 2 to 4 feet. 
.sunday...south gales to 35 knots becoming northwest storm force
winds to 55 knots. rain showers likely. snow showers. freezing
spray. waves building to 15 to 20 feet occasionally to 25 feet. 
.monday...north storm force winds to 55 knots. freezing spray. a
chance of snow showers. waves subsiding to 8 to 11 feet
occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$