fzus61 kbuf 130304
glflo 
expires:202512131000;;483452

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est fri dec 12 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 29.6 inch low will move from just north of the soo 
tonight to southern quebec by saturday night while weakening to 29.9 
inches, all while dragging an attendant cold front across the lake 
on saturday. a strong 30.8 inch high over the mid mississippi valley 
sunday will then settle across the southeast states monday and 
tuesday while weakening to 30.3 inches.


loz062-131000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est fri dec 12 2025

.rest of tonight...southwest winds 15 to 20 knots. a chance of
snow showers late this evening, then snow showers likely after
midnight. lake effect snow late. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.saturday...southwest winds to 30 knots becoming west. lake
effect snow early, then snow showers likely late in the morning.
a chance of snow showers early in the afternoon. waves 3 to
6 feet building to 8 to 11 feet. waves occasionally around
14 feet. 
.saturday night...west winds 15 to 25 knots. snow showers likely
overnight. waves 5 to 9 feet subsiding to 4 to 6 feet. waves
occasionally around 11 feet. 
.sunday...west winds 15 to 20 knots becoming northwest. lake
effect snow showers likely. waves 3 to 6 feet. 
.sunday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of snow showers. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots. lake effect snow showers
likely. waves 2 to 4 feet building to 6 to 10 feet, then
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...west winds 10 to 15 knots becoming southwest and
increasing to 30 knots. waves 3 to 5 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds to 30 knots becoming south and
diminishing to 15 to 20 knots. a chance of rain showers wednesday
night. waves 5 to 9 feet subsiding to 2 to 4 feet. waves
occasionally around 11 feet. 

$$

fzus61 kbuf 130304
glflo 
expires:202512131000;;483454

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est fri dec 12 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 29.6 inch low will move from just north of the soo 
tonight to southern quebec by saturday night while weakening to 29.9 
inches, all while dragging an attendant cold front across the lake 
on saturday. a strong 30.8 inch high over the mid mississippi valley 
sunday will then settle across the southeast states monday and 
tuesday while weakening to 30.3 inches.


loz064-065-131000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est fri dec 12 2025

.rest of tonight...west winds 15 to 20 knots becoming southwest.
a chance of snow showers. waves 4 to 7 feet subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.saturday...south winds to 30 knots becoming west. snow showers
likely early, then lake effect snow from late morning on. waves
3 to 6 feet building to 9 to 13 feet. waves occasionally around
16 feet. 
.saturday night...west winds to 30 knots diminishing to 15 to
20 knots. lake effect snow. waves 9 to 12 feet subsiding to 5 to
8 feet. waves occasionally around 15 feet. 
.sunday...northwest winds 15 to 20 knots. lake effect snow
showers. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.sunday night...northwest winds 15 to 25 knots. snow showers
likely in the evening, then a chance of snow showers overnight.
waves 3 to 6 feet. 
.monday...northwest winds 15 to 25 knots becoming west. lake
effect snow showers. waves 2 to 4 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 
.tuesday...west winds 15 to 25 knots becoming south. snow showers
likely during the day. waves 4 to 7 feet subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.wednesday...southwest winds 15 to 25 knots becoming south. a
chance of rain showers wednesday night. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet. 

$$

fzus61 kbuf 130304
glflo 
expires:202512131000;;483453

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est fri dec 12 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 29.6 inch low will move from just north of the soo 
tonight to southern quebec by saturday night while weakening to 29.9 
inches, all while dragging an attendant cold front across the lake 
on saturday. a strong 30.8 inch high over the mid mississippi valley 
sunday will then settle across the southeast states monday and 
tuesday while weakening to 30.3 inches.


loz063-131000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est fri dec 12 2025

.rest of tonight...southwest winds 15 to 20 knots. a chance of
snow showers late. waves 4 to 7 feet subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 
.saturday...southwest winds to 30 knots becoming west. snow
showers likely through early afternoon, then a chance of snow
showers late. waves 3 to 5 feet building to 9 to 13 feet. waves
occasionally around 16 feet. 
.saturday night...west winds to 30 knots diminishing to 15 to
20 knots. a chance of snow showers in the evening, then lake
effect snow overnight. waves 9 to 12 feet subsiding to 4 to
7 feet. waves occasionally around 15 feet. 
.sunday...west winds 15 to 20 knots becoming northwest. lake
effect snow showers. waves 4 to 7 feet. waves occasionally around
9 feet. 
.sunday night...northwest winds 15 to 20 knots. snow showers
likely in the evening, then a chance of snow showers overnight.
waves 3 to 6 feet. 
.monday...west winds 15 to 25 knots. lake effect snow showers
likely. waves 2 to 4 feet building to 5 to 9 feet. waves
occasionally around 11 feet. 
.tuesday...west winds 15 to 20 knots becoming southwest. a chance
of snow showers during the day. waves 4 to 7 feet subsiding to
3 to 5 feet. waves occasionally around 9 feet. 
.wednesday...southwest winds to 30 knots becoming south and
diminishing to 15 to 20 knots. waves 5 to 8 feet subsiding to
1 to 3 feet. waves occasionally around 10 feet. 

$$

fzus61 kcle 130747
glfle 
expires:202512131530;;494874

open lake forecast for lake erie
national weather service cleveland oh
247 am est sat dec 13 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 cold front will move east across lake erie this morning 
followed by a trough averaging 30.20 inches lingering over the 
lake into sunday. high pressure 30.70 inches will gradually build 
into the ohio valley and southern great lakes regions sunday and 
monday. this high will weaken to 30.40 inches as it moves towards 
the carolinas on tuesday and wednesday.


lez061-168-169-131530-
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-
247 am est sat dec 13 2025

.today...southwest winds to 30 knots becoming west. snow this
morning, then a chance of snow early this afternoon. snow late.
waves 6 to 10 feet. waves occasionally around 13 feet. 
.tonight...west winds 15 to 25 knots. snow likely in the evening,
then a chance of snow after midnight. snow late. waves 4 to
7 feet. waves occasionally around 9 feet. 
.sunday...west winds 20 to 25 knots becoming northwest. snow.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.sunday night...northwest winds 15 to 25 knots. a chance of snow.
waves 5 to 8 feet subsiding to 3 to 6 feet. waves occasionally
around 10 feet. 
.monday...southwest winds to 30 knots becoming west 15 to
25 knots. snow. waves 5 to 8 feet building to 8 to 12 feet, then
subsiding to 6 to 9 feet. waves occasionally around 15 feet. 
.tuesday...southwest winds 15 to 20 knots increasing to 30 knots.
waves 3 to 5 feet building to 6 to 9 feet. waves occasionally
around 11 feet. 
.wednesday...southwest winds to 30 knots becoming south 15 to
25 knots. a chance of rain wednesday night. waves 6 to 9 feet
subsiding to 3 to 6 feet. waves occasionally around 11 feet. 

$$

fzus61 kcle 130747
glfle 
expires:202512131530;;494872

open lake forecast for lake erie
national weather service cleveland oh
247 am est sat dec 13 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 cold front will move east across lake erie this morning 
followed by a trough averaging 30.20 inches lingering over the 
lake into sunday. high pressure 30.70 inches will gradually build 
into the ohio valley and southern great lakes regions sunday and 
monday. this high will weaken to 30.40 inches as it moves towards 
the carolinas on tuesday and wednesday.


lez162-163-131530-
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-
247 am est sat dec 13 2025

.today...west winds 15 to 25 knots. a slight chance of snow
early. a slight chance of snow early this afternoon, then a
chance of snow late. waves 2 to 4 feet. 
.tonight...west winds 15 to 20 knots becoming northwest. snow
early, then a chance of snow late in the evening. waves 2 to
4 feet. 
.sunday...northwest winds 15 to 25 knots. waves 2 to 4 feet
building to 3 to 5 feet, then subsiding to 2 to 4 feet. 
.sunday night...northwest winds 15 to 20 knots becoming west.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...southwest winds to 30 knots becoming west 15 to
25 knots. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 30 knots.
waves 1 to 3 feet building to 3 to 5 feet. 
.wednesday...southwest winds 15 to 25 knots becoming south to
30 knots. a chance of rain wednesday night. waves 3 to 5 feet
building to 3 to 6 feet. 

$$

fzus61 kcle 130747
glfle 
expires:202512131530;;494873

open lake forecast for lake erie
national weather service cleveland oh
247 am est sat dec 13 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 cold front will move east across lake erie this morning 
followed by a trough averaging 30.20 inches lingering over the 
lake into sunday. high pressure 30.70 inches will gradually build 
into the ohio valley and southern great lakes regions sunday and 
monday. this high will weaken to 30.40 inches as it moves towards 
the carolinas on tuesday and wednesday.


lez164>167-131530-
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-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-
247 am est sat dec 13 2025

.today...west winds to 30 knots. a chance of snow through early
afternoon, then snow late. waves 5 to 9 feet subsiding to 4 to
7 feet. waves occasionally around 11 feet. 
.tonight...west winds to 30 knots becoming northwest. snow. waves
3 to 6 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.sunday...northwest winds to 30 knots. a chance of snow in the
morning, then snow likely in the afternoon. waves 5 to 9 feet.
waves occasionally around 11 feet. 
.sunday night...northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. a chance of snow. waves 5 to
9 feet subsiding to 3 to 6 feet. waves occasionally around
11 feet. 
.monday...southwest winds to 30 knots becoming west 15 to
25 knots. snow during the day, then a chance of snow monday
night. waves 6 to 9 feet building to 9 to 12 feet, then subsiding
to 5 to 8 feet. waves occasionally around 15 feet. 
.tuesday...southwest winds 15 to 25 knots increasing to 30 knots.
waves 3 to 5 feet building to 6 to 10 feet. waves occasionally
around 13 feet. 
.wednesday...southwest winds to 30 knots becoming south. a chance
of rain wednesday night. waves 7 to 10 feet subsiding to 6 to
9 feet. waves occasionally around 13 feet. 

$$

fzus61 kcle 130243
glfle 
expires:202512130930;;482621

open lake forecast for lake erie
national weather service cleveland oh
943 pm est fri dec 12 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 cold front will move east across lake erie saturday morning 
followed by a trough averaging 30.20 inches lingering over the 
lake into sunday. high pressure 30.70 inches will gradually build 
into the ohio valley and southern great lakes regions sunday and 
monday. this high will weaken to 30.40 inches as it moves towards 
the carolinas on tuesday and wednesday.


lez162>164-130930-
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-
943 pm est fri dec 12 2025

.overnight...southwest winds 10 to 15 knots becoming west
and increasing to 15 to 25 knots. a slight chance of snow.
waves 2 feet or less building to 3 to 5 feet. 
.saturday...west winds 15 to 25 knots. a slight chance of snow
through early afternoon, then a chance of snow late. waves 3 to
5 feet. 
.saturday night...west winds 15 to 25 knots becoming northwest.
snow likely in the evening. waves 2 to 4 feet building to 3 to
5 feet. 
.sunday...northwest winds to 30 knots diminishing to 15 to
25 knots. waves 3 to 6 feet. 
.sunday night...northwest winds 15 to 25 knots becoming west.
waves 3 to 6 feet subsiding to 1 to 3 feet. 
.monday...southwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. waves 2 to 4 feet building to 4 to
7 feet, then subsiding to 3 to 5 feet. waves occasionally around
9 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
25 knots. waves 1 to 3 feet building to 3 to 6 feet. 
.wednesday...southwest winds 15 to 25 knots becoming south to
30 knots. a chance of rain wednesday night. waves 3 to 5 feet. 

$$

fzus61 kcle 130243
glfle 
expires:202512130930;;482622

open lake forecast for lake erie
national weather service cleveland oh
943 pm est fri dec 12 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 cold front will move east across lake erie saturday morning 
followed by a trough averaging 30.20 inches lingering over the 
lake into sunday. high pressure 30.70 inches will gradually build 
into the ohio valley and southern great lakes regions sunday and 
monday. this high will weaken to 30.40 inches as it moves towards 
the carolinas on tuesday and wednesday.


lez165>167-130930-
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-
943 pm est fri dec 12 2025

.overnight...southwest winds 15 to 25 knots increasing to
30 knots. a slight chance of snow. a chance of
snow late. waves 1 to 3 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.saturday...west winds to 30 knots. a chance of snow in the
morning, then a slight chance of snow early in the afternoon. a
chance of snow late. waves 5 to 9 feet. waves occasionally around
11 feet. 
.saturday night...west winds 15 to 25 knots becoming northwest to
30 knots. snow likely in the evening. waves 4 to 7 feet. waves
occasionally around 9 feet. 
.sunday...northwest winds to 30 knots. a chance of snow. waves
5 to 9 feet. waves occasionally around 11 feet. 
.sunday night...northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. waves 6 to 10 feet subsiding to
3 to 6 feet. waves occasionally around 13 feet. 
.monday...west winds to 30 knots diminishing to 15 to 20 knots.
waves 4 to 7 feet building to 8 to 12 feet, then subsiding to
7 to 10 feet. waves occasionally around 15 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 30 knots.
waves 4 to 7 feet building to 5 to 9 feet. waves occasionally
around 11 feet. 
.wednesday...southwest winds to 30 knots becoming south. a chance
of rain wednesday night. waves 6 to 9 feet subsiding to 5 to
8 feet. waves occasionally around 11 feet. 

$$

fzus63 kdtx 130253
glfsc 
expires:202512131100;;482775

lake st clair forecast
national weather service detroit/pontiac mi
953 pm est fri dec 12 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 low pressure system, 29.70 inches, will track from 
central canada into northern ontario tonight and saturday pulling 
an arctic cold front through the region tonight. isolated gusts to
gale force will be possible with this system.


lcz460-131100-
lake st clair-
953 pm est fri dec 12 2025

.rest of tonight...southwest winds 10 to 15 knots increasing to 20
to 25 knots. cloudy. a chance of light snow after midnight. waves 1
to 3 feet.
.saturday...west winds 20 to 25 knots diminishing to 15 to 20 knots
in the late morning and afternoon. mostly cloudy. waves 1 to 3 feet.
.saturday night...west winds 15 to 20 knots. mostly cloudy early in
the evening then clearing. waves 1 to 3 feet.
.sunday...northwest winds 20 to 25 knots diminishing to 15 to 20
knots early in the afternoon. mostly sunny. waves 1 to 3 feet.
.sunday night...northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and overnight. partly cloudy. waves 1
to 3 feet.
.monday...southwest winds 20 to 25 knots. mostly cloudy becoming
partly cloudy. waves 2 to 4 feet.
.tuesday...southwest winds to 30 knots. mostly cloudy. waves 2 to 4
feet. a small craft advisory may be needed.
.wednesday...south winds to 30 knots. mostly cloudy. waves 2 to 4
feet.

$$

fzus63 kdtx 130252
glflh 
expires:202512131100;;482772

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 pm est fri dec 12 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 low pressure system, 29.70 inches, will track from 
central canada into northern ontario tonight and saturday pulling 
an arctic cold front through the region tonight. isolated gusts to
gale force will be possible with this system.


lhz362-363-462-131100-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
952 pm est fri dec 12 2025

.rest of tonight...southwest winds 20 to 25 knots. snow likely.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday...west winds 20 to 25 knots. gusts to 30 knots in the
morning. snow likely in the morning...then a chance of snow in
the afternoon. waves 8 to 12 feet. waves occasionally around
15 feet. 
.saturday night...west winds 20 to 25 knots. gusts to 30 knots
after midnight. a chance of snow. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.sunday...northwest winds to 30 knots decreasing to 20 to
25 knots in the late morning and afternoon. a chance of snow in
the morning. waves 10 to 14 feet. waves occasionally around
18 feet. 
.sunday night...northwest winds 15 to 20 knots decreasing to
10 to 15 knots in the late evening and early morning...then
becoming west 15 to 20 knots after midnight. waves 8 to 12 feet
subsiding to 4 to 6 feet after midnight. waves occasionally
around 15 feet. 
.monday...southwest winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots with gusts to 35 knot gales late
in the morning...then decreasing to 15 to 20 knots late in the
afternoon becoming west 10 to 15 knots late in the evening. snow
likely in the morning...then a chance of snow late in the
morning. waves 10 to 14 feet subsiding to 4 to 6 feet late in the
evening. waves occasionally around 18 feet. 
.tuesday...west winds 5 to 10 knots becoming southwest to
30 knots with gusts to 35 knot gales. waves 2 to 4 feet building
to 12 to 16 feet. waves occasionally around 20 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots until early evening...then
becoming south 20 to 25 knots with gusts to around 30 knots in
the late evening and early morning. a chance of. waves 10 to
14 feet subsiding to 5 to 7 feet until early evening...then
building to 8 to 12 feet in the late evening and early morning.
waves occasionally around 18 feet. 


$$

fzus63 kdtx 130252
glflh 
expires:202512131100;;482771

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 pm est fri dec 12 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 low pressure system, 29.70 inches, will track from 
central canada into northern ontario tonight and saturday pulling 
an arctic cold front through the region tonight. isolated gusts to
gale force will be possible with this system.


lhz361-131100-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
952 pm est fri dec 12 2025

.rest of tonight...southwest winds 15 to 20 knots becoming west
20 to 25 knots early in the morning. snow this evening...then a
chance of snow after midnight. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...west winds 20 to 25 knots. gusts to 30 knots late in
the morning then 30 knots late in the afternoon. a chance of
snow. waves 6 to 9 feet. waves occasionally around 12 feet. 
.saturday night...west winds 20 to 25 knots becoming northwest
15 to 20 knots in the late evening and overnight. a chance of
snow. waves 5 to 7 feet. waves occasionally around 10 feet. 
.sunday...northwest winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.sunday night...northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late evening and early morning...then becoming
southwest 10 to 15 knots after midnight. waves 2 to 4 feet. 
.monday...southwest winds 15 to 20 knots increasing to 20 to
25 knots late in the morning...then becoming west 10 to 15 knots
late in the afternoon decreasing to 5 to 10 knots late in the
evening. snow in the morning...then a chance of snow late in the
morning. waves 4 to 6 feet subsiding to 2 to 4 feet late in the
evening. waves occasionally around 8 feet. 
.tuesday...west winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and early afternoon...then becoming
south 15 to 20 knots until early morning. waves 1 to 3 feet
building to 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots until early evening...then becoming south 15 to 20 knots
in the late evening and early morning. waves 3 to 5 feet building
to 6 to 9 feet in the late evening and early morning. waves
occasionally around 12 feet. 


$$

fzus63 kdtx 130252
glflh 
expires:202512131100;;482773

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 pm est fri dec 12 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 low pressure system, 29.70 inches, will track from 
central canada into northern ontario tonight and saturday pulling 
an arctic cold front through the region tonight. isolated gusts to
gale force will be possible with this system.


lhz463-464-131100-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
952 pm est fri dec 12 2025

.rest of tonight...southwest winds 15 to 20 knots increasing to
20 to 25 knots with gusts to around 30 knots after midnight. snow
likely after midnight. waves 4 to 6 feet. 
.saturday...west winds 20 to 25 knots. gusts to 30 knots in the
morning. waves 5 to 7 feet. waves occasionally around 10 feet. 
.saturday night...west winds 20 to 25 knots. gusts to 30 knots
after midnight. a chance of snow. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday...northwest winds to 30 knots decreasing to 20 to
25 knots early in the afternoon. a chance of snow. waves 10 to
14 feet. waves occasionally around 18 feet. 
.sunday night...northwest winds 20 to 25 knots becoming west
15 to 20 knots in the late evening and overnight. waves 8 to
12 feet subsiding to 4 to 6 feet after midnight. waves
occasionally around 15 feet. 
.monday...southwest winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots late in the morning...then becoming west 10 to 15 knots
late in the evening. a chance of snow. waves 6 to 9 feet
subsiding to 3 to 5 feet late in the evening. waves occasionally
around 12 feet. 
.tuesday...west winds 10 to 15 knots becoming southwest 15 to
20 knots in the late morning and early afternoon...then becoming
south 20 to 25 knots with gusts to around 30 knots early in the
evening increasing to 30 knots in the late evening and early
morning. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots until early evening...then
becoming south 20 to 25 knots with gusts to around 30 knots in
the late evening and early morning. a chance of. waves 6 to
9 feet subsiding to 3 to 5 feet early in the evening...then
building to 8 to 12 feet in the late evening and early morning.
waves occasionally around 15 feet. 


$$

fzus63 kmkx 130248
glflm 
expires:202512131030;;482753

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 pm cst fri dec 12 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...

gusty westerly winds are occurring in the wake of an arctic front
as low pressure around 29.7 inches works its way east across 
central ontario overnight. brisk northwesterly winds up 30 knots 
will continue through saturday night as high pressure around 30.8 
inches builds across the upper midwest. given the bitter cold 
arctic airmass and winds, expecting to see moderate to heavy 
freezing spray through sunday morning. winds will gradually ease 
through the day sunday as the high pressure moves south and east 
of lake michigan into early next week. then winds shift more 
southerly and ramp back up early next week as temps warm back up.


lmz261-362-364-366-563-565-567-868-131030-
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-
848 pm cst fri dec 12 2025

sheboygan wi to pentwater mi north...

...heavy freezing spray warning in effect from midnight cst
tonight through sunday morning...

.rest of tonight...west winds to 30 kt becoming northwest.
freezing spray. scattered snow showers through late evening, then
chance of snow showers overnight. waves 7 to 10 ft occasionally 
to 13 ft. 
.saturday...northwest winds to 30 kt. freezing spray. slight
chance of snow showers in the morning, then chance of snow
showers in the afternoon. waves 6 to 9 ft occasionally to 12 ft. 
.saturday night...northwest winds to 30 kt. heavy freezing spray
in the evening, then freezing spray overnight. chance of snow
showers. waves 8 to 11 ft occasionally to 14 ft building to 8 to
12 ft occasionally to 16 ft. 
.sunday...northwest winds to 30 kt diminishing to 15 to 25 kt.
freezing spray in the morning. waves 8 to 12 ft occasionally to
16 ft subsiding to 6 to 9 ft occasionally to 12 ft. 
.sunday night...west winds 10 to 20 kt becoming southwest gales
to 35 kt overnight. freezing spray overnight. waves 3 to 5 ft
building to 8 to 11 ft occasionally to 14 ft. 
.monday...southwest gales to 40 kt becoming west to 30 kt in the
afternoon. chance of snow in the morning. freezing spray. waves
12 to 16 ft occasionally to 21 ft. 
.monday night...northwest winds 10 to 20 kt becoming west 5 to
10 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 2 to
4 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to gales to
40 kt. waves 4 to 6 ft occasionally to 8 ft building to 8 to
11 ft occasionally to 14 ft. 
.wednesday...southwest winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmkx 130248
glflm 
expires:202512131030;;482754

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
848 pm cst fri dec 12 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...

gusty westerly winds are occurring in the wake of an arctic front
as low pressure around 29.7 inches works its way east across 
central ontario overnight. brisk northwesterly winds up 30 knots 
will continue through saturday night as high pressure around 30.8 
inches builds across the upper midwest. given the bitter cold 
arctic airmass and winds, expecting to see moderate to heavy 
freezing spray through sunday morning. winds will gradually ease 
through the day sunday as the high pressure moves south and east 
of lake michigan into early next week. then winds shift more 
southerly and ramp back up early next week as temps warm back up.


lmz080-669-671-673-675-777-779-870-872-874-876-878-131030-
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-
848 pm cst fri dec 12 2025

sheboygan wi to pentwater mi south...

...heavy freezing spray warning in effect from midnight cst
tonight through sunday morning...

.rest of tonight...west winds to 30 kt becoming northwest.
scattered snow showers through late evening, then chance of snow 
showers overnight. freezing spray overnight. waves 4 to 7 ft 
occasionally to 9 ft building to 8 to 11 ft occasionally to 14 ft.
.saturday...northwest winds to 30 kt. freezing spray. chance of
snow showers. waves 8 to 11 ft occasionally to 14 ft subsiding to
6 to 9 ft occasionally to 12 ft. 
.saturday night...northwest winds to 30 kt. heavy freezing spray.
chance of snow showers. waves 8 to 12 ft occasionally to 16 ft
building to 10 to 14 ft occasionally to 18 ft. 
.sunday...northwest winds to 30 kt. chance of snow in the
morning. freezing spray. waves 10 to 14 ft occasionally to 18 ft.
.sunday night...west winds 10 to 20 kt becoming southwest to
30 kt overnight. freezing spray overnight. waves 4 to 7 ft
occasionally to 9 ft building to 8 to 11 ft occasionally to
14 ft. 
.monday...southwest gales to 35 kt becoming west. freezing spray
in the morning. waves 12 to 16 ft occasionally to 21 ft. 
.monday night...west winds 15 to 25 kt diminishing to 10 to
15 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to
5 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 8 to 11 ft
occasionally to 14 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmqt 130256
glfls 
expires:202512130900;;482865

open lake forecast for lake superior
national weather service marquette mi
956 pm est fri dec 12 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...

late this evening a 29.7 inch trough was just east of lake superior 
with with a 30.7 inch high spreading through central canada and into 
the northern plains. ridging will build to 30.5 inches over the 
western lake by sunday morning as the high moves into iowa. a 30.0 
inch trough will move through the lake monday as the high settles 
into the south at 30.3 inches. a 30.1 inch ridge will move through 
lake superior monday night followed by a trough of at least 29.3 
inches tuesday night into wednesday.



lsz265-130900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
956 pm est fri dec 12 2025

...gale warning in effect through sunday morning...
...heavy freezing spray warning in effect from 1 am est saturday
through sunday morning...

.rest of tonight...northwest gales to 40 knots. freezing spray.
snow showers likely. waves 5 to 9 feet occasionally to 11 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday...northwest gales to 40 knots. heavy freezing spray.
snow showers likely. waves subsiding to 4 to 7 feet occasionally
to 9 feet. 
.saturday night...northwest gales to 40 knots. heavy freezing
spray. snow showers likely in the evening. a chance of snow
showers after midnight. waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 8 to 11 feet
occasionally to 14 feet. 
.sunday...northwest winds 20 to 30 knots becoming west 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 1 to 3 feet. 
.sunday night...southwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of snow showers after
midnight. waves subsiding to calm to 2 feet, then building to
3 to 6 feet occasionally to 8 feet. 
.monday...west winds 20 to 30 knots veering northwest in the
afternoon. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.monday night...northwest winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...south gales to 35 knots becoming west gales to
40 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west winds 20 to 30 knots becoming south storm force
winds to 55 knots. snow showers and freezing drizzle likely.
waves subsiding to calm to 2 feet, then building to 8 to 11 feet
occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130256
glfls 
expires:202512130900;;482866

open lake forecast for lake superior
national weather service marquette mi
956 pm est fri dec 12 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...

late this evening a 29.7 inch trough was just east of lake superior 
with with a 30.7 inch high spreading through central canada and into 
the northern plains. ridging will build to 30.5 inches over the 
western lake by sunday morning as the high moves into iowa. a 30.0 
inch trough will move through the lake monday as the high settles 
into the south at 30.3 inches. a 30.1 inch ridge will move through 
lake superior monday night followed by a trough of at least 29.3 
inches tuesday night into wednesday.



lsz266-130900-
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-
956 pm est fri dec 12 2025

...gale warning in effect through sunday morning...
...heavy freezing spray warning in effect from 1 am est saturday
through sunday morning...

.rest of tonight...west gales to 40 knots veering northwest by
midnight. freezing spray. snow showers likely. waves 6 to 9 feet
occasionally to 11 feet building to 9 to 12 feet occasionally to
15 feet. 
.saturday...northwest gales to 40 knots. heavy freezing spray.
snow showers. waves subsiding to 7 to 10 feet occasionally to
13 feet, then building to 8 to 11 feet occasionally to 14 feet. 
.saturday night...northwest gales to 40 knots veering north by
midnight. heavy freezing spray. snow showers. waves building to
11 to 15 feet occasionally to 19 feet, then subsiding to 10 to
14 feet occasionally to 18 feet. 
.sunday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...southwest winds 15 to 25 knots increasing to
gales to 35 knots after midnight. freezing spray after midnight.
snow showers likely after midnight. waves subsiding to 2 to
4 feet, then building to 7 to 10 feet occasionally to 13 feet. 
.monday...west gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. snow
showers in the morning, then a chance of snow showers in the
afternoon. waves building to 8 to 11 feet occasionally to
14 feet, then subsiding to 5 to 8 feet occasionally to 10 feet. 
.monday night...northwest winds 15 to 25 knots becoming southwest
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.tuesday...south gales to 40 knots veering west. waves building
to 8 to 12 feet occasionally to 15 feet. 
.wednesday...west winds 20 to 30 knots becoming south gales to
45 knots. a chance of freezing drizzle. snow showers and freezing
drizzle likely. waves subsiding to 3 to 5 feet occasionally to
7 feet, then building to 10 to 14 feet occasionally to 18 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130256
glfls 
expires:202512130900;;482867

open lake forecast for lake superior
national weather service marquette mi
956 pm est fri dec 12 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...

late this evening a 29.7 inch trough was just east of lake superior 
with with a 30.7 inch high spreading through central canada and into 
the northern plains. ridging will build to 30.5 inches over the 
western lake by sunday morning as the high moves into iowa. a 30.0 
inch trough will move through the lake monday as the high settles 
into the south at 30.3 inches. a 30.1 inch ridge will move through 
lake superior monday night followed by a trough of at least 29.3 
inches tuesday night into wednesday.



lsz267-130900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
956 pm est fri dec 12 2025

...gale warning in effect through sunday morning...
...heavy freezing spray warning in effect from 1 am est saturday
through sunday morning...

.rest of tonight...west winds 20 to 30 knots increasing to gales
to 35 knots by midnight, then becoming northwest gales to
40 knots late. freezing spray. snow showers. waves 5 to 8 feet
occasionally to 10 feet building to 9 to 12 feet occasionally to
15 feet. 
.saturday...northwest gales to 40 knots. freezing spray. snow
showers. waves subsiding to 7 to 10 feet occasionally to 13 feet,
then building to 8 to 11 feet occasionally to 14 feet. 
.saturday night...north gales to 35 knots diminishing to 20 to
30 knots by midnight. freezing spray. snow showers in the
evening. a chance of snow showers after midnight. waves building
to 9 to 12 feet occasionally to 15 feet, then subsiding to 7 to
10 feet occasionally to 13 feet. 
.sunday...north winds 20 to 30 knots becoming northwest 10 to
20 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...west winds 15 to 25 knots becoming southwest
gales to 35 knots after midnight. a slight chance of snow showers
in the evening, then snow showers likely after midnight. freezing
spray after midnight. waves subsiding to 2 to 4 feet, then
building to 7 to 10 feet occasionally to 13 feet. 
.monday...southwest gales to 35 knots becoming west 20 to
30 knots in the afternoon. freezing spray in the morning. snow
showers in the morning, then a chance of snow showers in the
afternoon. waves subsiding to 5 to 8 feet occasionally to
10 feet. 
.monday night...northwest winds 10 to 20 knots backing west after
midnight. waves subsiding to 1 to 3 feet. 
.tuesday...south gales to 35 knots veering southwest. waves
building to 7 to 10 feet occasionally to 13 feet. 
.wednesday...west winds 20 to 30 knots becoming south gales to
35 knots. a chance of snow showers and freezing drizzle. freezing
drizzle with snow showers likely. waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 7 to 10 feet
occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130256
glfls 
expires:202512130900;;482864

open lake forecast for lake superior
national weather service marquette mi
956 pm est fri dec 12 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...

late this evening a 29.7 inch trough was just east of lake superior 
with with a 30.7 inch high spreading through central canada and into 
the northern plains. ridging will build to 30.5 inches over the 
western lake by sunday morning as the high moves into iowa. a 30.0 
inch trough will move through the lake monday as the high settles 
into the south at 30.3 inches. a 30.1 inch ridge will move through 
lake superior monday night followed by a trough of at least 29.3 
inches tuesday night into wednesday.



lsz264-130900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
956 pm est fri dec 12 2025

...gale warning in effect through sunday morning...
...heavy freezing spray warning in effect through sunday
morning...

.rest of tonight...northwest gales to 35 knots diminishing to
20 to 30 knots late. heavy freezing spray. snow showers likely.
waves 6 to 10 feet occasionally to 13 feet. 
.saturday...northwest winds 20 to 30 knots. heavy freezing spray.
snow showers likely. waves subsiding to 5 to 8 feet occasionally
to 10 feet. 
.saturday night...northwest gales to 35 knots veering north by
midnight, then becoming northwest 20 to 30 knots late. heavy
freezing spray. a chance of snow showers. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon. freezing spray in the morning. a
slight chance of snow showers. waves subsiding to 1 to 3 feet. 
.sunday night...southwest winds 20 to 30 knots increasing to
gales to 35 knots after midnight. freezing spray after midnight.
a chance of snow showers after midnight. waves building to 9 to
12 feet occasionally to 15 feet. 
.monday...west gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.monday night...north winds 10 to 20 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.tuesday...southwest gales to 40 knots veering west. waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet. 
.wednesday...west winds 20 to 30 knots becoming south storm force
winds to 55 knots. freezing drizzle and snow showers likely.
waves subsiding to 2 to 4 feet, then building to 12 to 17 feet
occasionally to 21 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130256
glfls 
expires:202512130900;;482863

open lake forecast for lake superior
national weather service marquette mi
956 pm est fri dec 12 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...

late this evening a 29.7 inch trough was just east of lake superior 
with with a 30.7 inch high spreading through central canada and into 
the northern plains. ridging will build to 30.5 inches over the 
western lake by sunday morning as the high moves into iowa. a 30.0 
inch trough will move through the lake monday as the high settles 
into the south at 30.3 inches. a 30.1 inch ridge will move through 
lake superior monday night followed by a trough of at least 29.3 
inches tuesday night into wednesday.



lsz263-130900-
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-
956 pm est fri dec 12 2025

...gale warning in effect until 1 am est saturday...
...heavy freezing spray warning in effect through sunday
morning...

.rest of tonight...northwest gales to 35 knots diminishing to
20 to 30 knots late. heavy freezing spray. snow showers likely.
waves 6 to 10 feet occasionally to 13 feet. 
.saturday...northwest winds 20 to 30 knots. heavy freezing spray.
snow showers likely. waves subsiding to 4 to 7 feet occasionally
to 9 feet. 
.saturday night...northwest winds 20 to 30 knots. heavy freezing
spray. a chance of freezing drizzle in the evening. a chance of
snow showers. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 15 to 25 knots backing west in the
afternoon. a slight chance of snow showers. waves subsiding to
1 to 3 feet. 
.sunday night...southwest gales to 40 knots. freezing spray after
midnight. a chance of snow showers after midnight. waves building
to 8 to 11 feet occasionally to 14 feet. 
.monday...west gales to 35 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. waves
subsiding to 1 to 3 feet. 
.monday night...north winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.tuesday...southwest gales to 45 knots veering west. waves
building to 8 to 11 feet occasionally to 14 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.wednesday...west winds 15 to 25 knots becoming south storm force
winds to 55 knots. a chance of freezing drizzle. snow showers
likely. waves subsiding to 1 to 3 feet, then building to 10 to
14 feet occasionally to 18 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 130256
glfls 
expires:202512130900;;482862

open lake forecast for lake superior
national weather service marquette mi
956 pm est fri dec 12 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...

late this evening a 29.7 inch trough was just east of lake superior 
with with a 30.7 inch high spreading through central canada and into 
the northern plains. ridging will build to 30.5 inches over the 
western lake by sunday morning as the high moves into iowa. a 30.0 
inch trough will move through the lake monday as the high settles 
into the south at 30.3 inches. a 30.1 inch ridge will move through 
lake superior monday night followed by a trough of at least 29.3 
inches tuesday night into wednesday.



lsz162-130900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
956 pm est fri dec 12 2025 /856 pm cst fri dec 12 2025/

...heavy freezing spray warning in effect through late saturday
night...

.rest of 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. a slight chance of snow showers.
waves 6 to 9 feet occasionally to 11 feet subsiding to 4 to
7 feet occasionally to 9 feet. 
.saturday...northwest winds 20 to 30 knots. heavy freezing spray
in the morning. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots late. a slight chance of freezing drizzle in the
evening. a slight chance of snow showers. waves subsiding to 1 to
3 feet. 
.sunday...northwest winds 10 to 20 knots backing southwest in the
afternoon. a slight chance of snow showers in the morning. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.sunday night...southwest gales to 35 knots. freezing spray after
midnight. a slight chance of snow showers after midnight. waves
building to 6 to 10 feet occasionally to 13 feet. 
.monday...west winds 20 to 30 knots becoming northwest 5 to
15 knots in the afternoon. waves subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest gales to 35 knots veering west. waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 2 to 4 feet. 
.wednesday...south winds 10 to 20 knots increasing to gales to
40 knots. a chance of freezing drizzle and snow showers. waves
subsiding to calm to 2 feet, then building to 6 to 9 feet
occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$