fzus61 kbuf 271502
glflo 
expires:202511272200;;598567

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est thu nov 27 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 29.3 inch surface low will slowly track east across 
central quebec today through friday. meanwhile, a 30.5 inch surface 
high will build south into the mid-mississippi valley friday, then 
to the ohio valley and lower great lakes saturday. another surface 
low will cut northeastward through the central great lakes sunday, 
slowly deepening from 29.6 inches sunday morning to 29.4 inches 
sunday night over western quebec. a 30.4 inch surface high centered 
over the central plains will then build east across the great lakes 
monday.


loz064-065-272200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est thu nov 27 2025

...gale warning in effect through friday evening...

.rest of today...southwest gales to 35 knots becoming west to
40 knots. lake effect snow. waves 13 to 17 feet. waves
occasionally around 22 feet. 
.tonight...west gales to 35 knots in the evening. lake effect
snow in the evening, then lake effect snow showers with a few
rumbles of thunder possible after midnight. waves 12 to 17 feet
subsiding to 10 to 15 feet. waves occasionally around 22 feet. 
.friday...west winds to 30 knots increasing to 35 knot gales.
snow showers. waves 10 to 15 feet. waves occasionally around
19 feet. 
.friday night...northwest winds to 30 knots. a chance of snow
showers. waves 10 to 14 feet subsiding to 6 to 9 feet. waves
occasionally around 18 feet. 
.saturday...northwest winds 15 to 25 knots becoming southeast.
lake effect snow showers likely saturday night. waves 4 to 7 feet
subsiding to 3 to 5 feet. waves occasionally around 9 feet. 
.sunday...south gales to 35 knots becoming west and diminishing
to 30 knots. lake effect rain and snow showers during the day,
then lake effect rain showers with a chance of lake effect snow
showers sunday night. waves 5 to 8 feet building to 7 to 10 feet.
waves occasionally around 13 feet. 
.monday...northwest winds 15 to 25 knots becoming southeast and
diminishing to 10 to 15 knots. a chance of lake effect snow
showers. waves 6 to 9 feet subsiding to 2 feet or less. waves
occasionally around 11 feet. 

$$

fzus61 kbuf 271502
glflo 
expires:202511272200;;598566

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est thu nov 27 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 29.3 inch surface low will slowly track east across 
central quebec today through friday. meanwhile, a 30.5 inch surface 
high will build south into the mid-mississippi valley friday, then 
to the ohio valley and lower great lakes saturday. another surface 
low will cut northeastward through the central great lakes sunday, 
slowly deepening from 29.6 inches sunday morning to 29.4 inches 
sunday night over western quebec. a 30.4 inch surface high centered 
over the central plains will then build east across the great lakes 
monday.


loz063-272200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est thu nov 27 2025

...gale warning in effect through friday evening...

.rest of today...west gales to 40 knots diminishing to 35 knots.
lake effect snow. waves 13 to 17 feet. waves occasionally around
22 feet. 
.tonight...west gales to 35 knots diminishing to 30 knots after
midnight. lake effect snow in the evening, then lake effect snow
showers after midnight. waves 11 to 16 feet subsiding to 10 to
14 feet. waves occasionally around 20 feet. 
.friday...west winds to 30 knots increasing to 35 knot gales.
lake effect snow showers. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.friday night...west winds to 30 knots becoming northwest. lake
effect snow showers likely. waves 9 to 13 feet subsiding to 6 to
10 feet. waves occasionally around 16 feet. 
.saturday...northwest winds 15 to 25 knots becoming southeast.
lake effect snow showers saturday night. waves 4 to 7 feet
subsiding to 2 to 4 feet. waves occasionally around 9 feet. 
.sunday...south winds to 30 knots becoming west. lake effect rain
and snow showers during the day, then lake effect rain showers
with a chance of lake effect snow showers sunday night. waves
5 to 8 feet building to 6 to 9 feet. waves occasionally around
11 feet. 
.monday...northwest winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. a chance of lake effect snow
showers. waves 6 to 9 feet subsiding to 1 to 2 feet. waves
occasionally around 11 feet. 

$$

fzus61 kbuf 271502
glflo 
expires:202511272200;;598565

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est thu nov 27 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 29.3 inch surface low will slowly track east across 
central quebec today through friday. meanwhile, a 30.5 inch surface 
high will build south into the mid-mississippi valley friday, then 
to the ohio valley and lower great lakes saturday. another surface 
low will cut northeastward through the central great lakes sunday, 
slowly deepening from 29.6 inches sunday morning to 29.4 inches 
sunday night over western quebec. a 30.4 inch surface high centered 
over the central plains will then build east across the great lakes 
monday.


loz062-272200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est thu nov 27 2025

...gale warning in effect through friday evening...

.rest of today...west gales to 35 knots. a chance of snow showers
late this morning, then lake effect snow this afternoon. waves
11 to 16 feet. waves occasionally around 20 feet. 
.tonight...west gales to 35 knots diminishing to 30 knots after
midnight. lake effect snow in the evening, then lake effect snow
showers after midnight. waves 9 to 13 feet subsiding to 8 to
11 feet. waves occasionally around 16 feet. 
.friday...west winds to 30 knots. snow showers. waves 8 to
11 feet. waves occasionally around 14 feet. 
.friday night...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. a chance of snow showers. waves
6 to 10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet. 
.saturday...west winds 15 to 20 knots becoming southeast. lake
effect snow showers saturday night. waves 3 to 5 feet subsiding
to 1 to 3 feet. 
.sunday...south winds 15 to 25 knots becoming west to 30 knots.
lake effect rain and snow showers during the day, then lake
effect rain showers sunday night. waves 3 to 5 feet building to
5 to 8 feet. waves occasionally around 10 feet. 
.monday...northwest winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of lake effect snow showers monday night.
waves 4 to 7 feet subsiding to 1 to 3 feet. waves occasionally
around 9 feet. 

$$

fzus61 kcle 271512
glfle 
expires:202511272130;;599416

open lake forecast for lake erie
national weather service cleveland oh
1012 am est thu nov 27 2025

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a trough averaging 30.00 inches will linger over lake erie through
friday evening before high pressure of 30.50 inches moves east 
across the lake friday night and saturday. low pressure of 29.80 
inches will track out of the great plains saturday night to the 
central great lakes on sunday. high pressure 30.50 inches will 
begin to build east into the region on monday.


lez061-168-169-272130-
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-
1012 am est thu nov 27 2025

...gale warning in effect through friday morning...

.rest of today...west gales to 35 knots. a chance of snow with a
slight chance of rain late this morning, then snow and rain
likely early this afternoon. snow likely with a slight chance of
rain late. waves 11 to 15 feet. waves occasionally around
19 feet. 
.tonight...west gales to 35 knots. snow likely with a slight
chance of rain early, then snow likely from late evening on.
waves 11 to 16 feet. waves occasionally around 20 feet. 
.friday...west winds to 30 knots. snow. waves 9 to 13 feet
subsiding to 8 to 11 feet. waves occasionally around 16 feet. 
.friday night...west winds to 30 knots diminishing to 15 to
25 knots. a chance of snow in the evening. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.saturday...west winds 15 to 25 knots becoming south. snow
saturday night. waves 3 to 5 feet. 
.sunday...south winds to 30 knots becoming northwest. rain during
the day, then rain and snow likely sunday night. waves 5 to
8 feet building to 7 to 11 feet, then subsiding to 6 to 9 feet.
waves occasionally around 14 feet. 
.monday...northwest winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. a chance of snow. waves 3 to 5 feet
subsiding to 1 to 3 feet. 

$$

fzus61 kcle 271512
glfle 
expires:202511272130;;599414

open lake forecast for lake erie
national weather service cleveland oh
1012 am est thu nov 27 2025

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a trough averaging 30.00 inches will linger over lake erie through
friday evening before high pressure of 30.50 inches moves east 
across the lake friday night and saturday. low pressure of 29.80 
inches will track out of the great plains saturday night to the 
central great lakes on sunday. high pressure 30.50 inches will 
begin to build east into the region on monday.


lez162>164-272130-
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-
1012 am est thu nov 27 2025

...gale warning in effect through late tonight...
...low water advisory in effect until 4 am est friday...

.rest of today...west winds to 30 knots. a chance of snow. waves
5 to 8 feet. waves occasionally around 10 feet. 
.tonight...west winds to 30 knots. a chance of snow. waves 5 to
9 feet. waves occasionally around 11 feet. 
.friday...west winds to 30 knots. waves 4 to 7 feet subsiding to
3 to 6 feet. waves occasionally around 9 feet. 
.friday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...southwest winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. a chance of snow during the day,
then snow saturday night. waves 1 to 3 feet building to 3 to
5 feet. 
.sunday...southwest winds to 30 knots becoming northwest 15 to
25 knots. rain with a chance of snow during the day, then a
chance of snow sunday night. waves 3 to 6 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. a chance of snow monday night.
waves 1 to 3 feet subsiding to 1 foot or less. 

$$

fzus61 kcle 271512
glfle 
expires:202511272130;;599415

open lake forecast for lake erie
national weather service cleveland oh
1012 am est thu nov 27 2025

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
a trough averaging 30.00 inches will linger over lake erie through
friday evening before high pressure of 30.50 inches moves east 
across the lake friday night and saturday. low pressure of 29.80 
inches will track out of the great plains saturday night to the 
central great lakes on sunday. high pressure 30.50 inches will 
begin to build east into the region on monday.


lez165>167-272130-
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-
1012 am est thu nov 27 2025

...gale warning in effect through friday morning...

.rest of today...west gales to 35 knots. a chance of snow with a
slight chance of rain. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.tonight...west gales to 35 knots diminishing to 30 knots. a
chance of snow in the evening, then snow likely after midnight. a
chance of snow late. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.friday...west winds to 30 knots. snow likely in the morning,
then a chance of snow in the afternoon. waves 8 to 12 feet
subsiding to 7 to 10 feet. waves occasionally around 15 feet. 
.friday night...west winds to 30 knots diminishing to 15 to
20 knots. waves 6 to 9 feet subsiding to 3 to 6 feet. waves
occasionally around 11 feet. 
.saturday...west winds 5 to 10 knots becoming south and
increasing to 30 knots. a chance of snow during the day, then
snow saturday night. waves 1 to 3 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.sunday...south winds to 30 knots becoming northwest. rain during
the day, then snow and rain likely sunday night. waves 7 to
11 feet subsiding to 6 to 9 feet. waves occasionally around
14 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest 5 to
15 knots. a chance of snow monday night. waves 3 to 6 feet
subsiding to 1 to 3 feet. 

$$

fzus63 kdtx 271440
glfsc 
expires:202511272245;;597876

lake st clair forecast
national weather service detroit/pontiac mi
940 am est thu nov 27 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...low pressure, 29.30 inches, begins to depart for
northeastern ontario today setting up northwesterly flow in its 
wake. despite departure, influence of the system maintains strong 
winds and lake effect snow showers through today into early 
friday. high pressure, 30.40 inches, then gradually expands across
the region friday into saturday. another low, 29.60 inches, is 
forecast to lift across the southern great lakes from the midwest 
saturday night and sunday, bringing widespread snow with a chance 
for gusty winds in the wake of the system sunday night.


lcz460-272245-
lake st clair-
940 am est thu nov 27 2025

...gale warning in effect through late tonight...

.rest of today...west winds to 30 knots diminishing to 20 to 25
knots in the afternoon. gusts to 35 knot gales. mostly cloudy with
scattered light snow showers. waves 2 to 4 feet.
.tonight...west winds to 30 knots diminishing to 20 to 25 knots
after midnight. gusts to 35 knot gales. mostly cloudy with scattered
light snow showers in the evening...then partly cloudy after
midnight. waves 2 to 4 feet.
.friday...west winds to 30 knots diminishing to 15 to 20 knots.
mostly sunny. waves 2 to 4 feet subsiding to 1 to 3 feet early in
the afternoon.
.friday night...west winds 20 to 25 knots diminishing to 10 to 15
knots. mostly clear. waves 1 to 3 feet.
.saturday...southwest winds 5 to 10 knots backing to the south in
the afternoon...then becoming southeast 15 to 20 knots in the
evening. partly sunny in the morning. a chance of light snow in the
afternoon. snow in the evening. snow may be heavy at times in the
evening. waves 2 feet or less.
.sunday...west winds 20 to 25 knots. light rain and snow. waves 2 to
4 feet.
.monday...southwest winds 20 to 25 knots. partly cloudy. waves 2
feet or less.

$$

fzus63 kdtx 271439
glflh 
expires:202511272245;;597864

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am est thu nov 27 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure, 29.30 inches, begins to depart for
northeastern ontario today setting up northwesterly flow in its 
wake. despite departure, influence of the system maintains strong 
winds and lake effect snow showers through today into early 
friday. high pressure, 30.40 inches, then gradually expands across
the region friday into saturday. another low, 29.60 inches, is 
forecast to lift across the southern great lakes from the midwest 
saturday night and sunday, bringing widespread snow with a chance 
for gusty winds in the wake of the system sunday night.


lhz463-464-272245-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
939 am est thu nov 27 2025

...gale warning in effect through friday morning...

.rest of today...west winds to 30 knots with gusts to 40 knot
gales. numerous snow showers. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.tonight...west winds to 30 knots with gusts to 40 knot gales.
numerous snow showers. waves 12 to 16 feet. waves occasionally
around 20 feet. 
.friday...northwest winds to 30 knots becoming west 20 to
25 knots early in the afternoon. gusts to 35 knot gales.
scattered snow showers. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.friday night...west winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots after midnight. a chance of
snow. waves 6 to 9 feet. waves occasionally around 11 feet. 
.saturday...west winds 10 to 15 knots becoming southwest 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
late in the afternoon becoming southeast 20 to 25 knots late in
the evening. a chance of snow late in the morning. snow late in
the afternoon. rain late in the evening. waves 3 to 5 feet
subsiding to 1 to 3 feet late in the morning...then building to
2 to 4 feet late in the afternoon building to 5 to 7 feet late in
the evening. waves occasionally around 10 feet. 
.sunday...south winds 20 to 25 knots with gusts to around
30 knots veering to the northwest with gusts to around 30 knots
until early morning. rain and snow early in the morning...then
rain and snow likely early in the evening. a chance of snow and
rain in the late evening and early morning. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.monday...northwest winds 15 to 20 knots becoming west 10 to
15 knots until early evening...then backing to the southwest in
the late evening and early morning. a chance of snow in the late
evening and early morning. waves 6 to 9 feet subsiding to 1 to
3 feet. waves occasionally around 12 feet. 


$$

fzus63 kdtx 271439
glflh 
expires:202511272245;;597863

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am est thu nov 27 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure, 29.30 inches, begins to depart for
northeastern ontario today setting up northwesterly flow in its 
wake. despite departure, influence of the system maintains strong 
winds and lake effect snow showers through today into early 
friday. high pressure, 30.40 inches, then gradually expands across
the region friday into saturday. another low, 29.60 inches, is 
forecast to lift across the southern great lakes from the midwest 
saturday night and sunday, bringing widespread snow with a chance 
for gusty winds in the wake of the system sunday night.


lhz363-462-272245-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
939 am est thu nov 27 2025

...gale warning in effect through friday morning...

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


$$

fzus63 kdtx 271439
glflh 
expires:202511272245;;597862

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am est thu nov 27 2025

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure, 29.30 inches, begins to depart for
northeastern ontario today setting up northwesterly flow in its 
wake. despite departure, influence of the system maintains strong 
winds and lake effect snow showers through today into early 
friday. high pressure, 30.40 inches, then gradually expands across
the region friday into saturday. another low, 29.60 inches, is 
forecast to lift across the southern great lakes from the midwest 
saturday night and sunday, bringing widespread snow with a chance 
for gusty winds in the wake of the system sunday night.


lhz361-362-272245-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
939 am est thu nov 27 2025

...gale warning in effect through friday morning...

.rest of today...northwest winds to 30 knots with gusts to
35 knot gales. numerous snow showers. waves 12 to 16 feet. waves
occasionally around 20 feet. 
.tonight...northwest winds to 30 knots with gusts to 35 knot
gales. numerous snow showers in the evening...then scattered snow
showers after midnight. waves 12 to 16 feet. waves occasionally
around 20 feet. 
.friday...northwest winds to 30 knots. scattered snow showers.
waves 12 to 16 feet. waves occasionally around 20 feet. 
.friday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 10 to 15 knots. a chance of snow.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.saturday...west winds 5 to 10 knots backing to the southwest
late in the morning...then backing to the south late in the
afternoon increasing to 10 to 15 knots late in the evening. a
chance of snow late in the morning. snow late in the afternoon.
snow may be heavy at times late in the evening. waves 3 to 5 feet
subsiding to 1 to 3 feet late in the morning...then building to
4 to 6 feet late in the evening. waves occasionally around
8 feet. 
.sunday...southeast winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and early afternoon...then becoming
northwest 20 to 25 knots until early morning. snow early in the
morning. snow likely early in the evening...then a chance of snow
in the late evening and early morning. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.monday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then backing
to the southwest until early morning. a chance of snow until
early morning. waves 5 to 7 feet subsiding to 2 to 4 feet until
early morning. waves occasionally around 10 feet. 


$$

fzus63 kmkx 271459
glflm 
expires:202511272215;;598282

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cst thu nov 27 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.4 inches over western quebec will slowly move
eastward through friday with some weakening. occasional gale force
gusts will continue today into tonight over lake michigan,
especially on the eastern and northern ends of the lake. a ridge
of high pressure will then move across the lake friday night with
light and variable winds expected. 

low pressure of 29.8 inches will then track from eastern kansas 
saturday morning to the southern tip of lake michigan saturday 
night, and then reach lake huron by mid sunday while deepening to
29.7 inches. widespread, moderate to heavy snow will overspread 
the south half of lake michigan. brisk southeast winds saturday 
will become easterly and then westerly as the low crosses the 
great lakes region. gales are not anticipated at this time, 
although a period of gusty northwest winds is expected sunday.


lmz080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-272215-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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 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 pentwater to manistee mi 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-
859 am cst thu nov 27 2025

sturgeon bay wi to point betsie mi south...

...gale warning in effect through this evening...

.rest of today...northwest gales to 35 kt. chance of snow 
showers. waves 14 to 18 ft occasionally to 23 ft. 
.tonight...northwest gales to 35 kt diminishing to 30 kt. chance 
of snow showers. waves 14 to 18 ft occasionally to 23 ft. 
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt.
chance of rain showers in the morning. waves 10 to 14 ft
occasionally to 18 ft subsiding to 7 to 10 ft occasionally to
13 ft. 
.friday night...northwest winds 10 to 20 kt becoming west 5 to
10 kt overnight. chance of snow. waves 4 to 6 ft occasionally to
8 ft subsiding to 2 to 4 ft. 
.saturday...south winds 10 to 20 kt becoming southeast 15 to
25 kt. snow likely in the morning, then snow in the afternoon.
waves 2 to 4 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday night...southeast winds to 30 kt diminishing to 15 to
25 kt. snow. waves 7 to 10 ft occasionally to 13 ft.
.sunday...north gales to 35 kt becoming northwest. snow. waves
12 to 16 ft occasionally to 21 ft. 
.monday...northwest winds 10 to 20 kt becoming west. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 271459
glflm 
expires:202511272215;;598281

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cst thu nov 27 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.4 inches over western quebec will slowly move
eastward through friday with some weakening. occasional gale force
gusts will continue today into tonight over lake michigan,
especially on the eastern and northern ends of the lake. a ridge
of high pressure will then move across the lake friday night with
light and variable winds expected. 

low pressure of 29.8 inches will then track from eastern kansas 
saturday morning to the southern tip of lake michigan saturday 
night, and then reach lake huron by mid sunday while deepening to
29.7 inches. widespread, moderate to heavy snow will overspread 
the south half of lake michigan. brisk southeast winds saturday 
will become easterly and then westerly as the low crosses the 
great lakes region. gales are not anticipated at this time, 
although a period of gusty northwest winds is expected sunday.


lmz261-362-364-563-272215-
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 rock island passage to sturgeon bay wi-
859 am cst thu nov 27 2025

sturgeon bay wi to point betsie mi north...

...gale warning in effect through late tonight...

.rest of today...northwest gales to 35 to 40 kt. snow showers 
through mid morning, then snow showers likely this afternoon. 
waves 10 to 14 ft occasionally to 18 ft subsiding to 8 to 11 ft 
occasionally to 14 ft. 
.tonight...northwest gales 35 to 40 kt. snow showers likely in 
the evening, then chance of snow showers overnight. waves 8 to 12 
ft occasionally to 16 ft subsiding to 7 to 10 ft occasionally to 
13 ft. 
.friday...northwest winds to 30 kt. snow showers likely in the
morning, then chance of snow showers in the afternoon. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of snow in the evening. waves 3 to 5 ft subsiding
to 1 to 3 ft. 
.saturday...west winds 10 to 15 kt backing to southeast. snow
likely in the afternoon. waves 1 to 2 ft. 
.saturday night...southeast winds 10 to 20 kt becoming east.
snow. waves 3 to 5 ft. 
.sunday...north winds to 30 kt becoming northwest. snow. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.monday...northwest winds 10 to 20 kt becoming west. chance of
snow. waves 2 to 4 ft.  

$$

fzus63 kmqt 271500
glfls 
expires:202511272100;;598330

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu nov 27 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...

lake superior will spend thanksgiving between a 30.6 inch high over 
the dakotas and a 29.4 inch low over quebec. by friday, the high 
will weaken slightly to 30.5 inches as it shifts over the upper 
mississippi river valley while the low weakens to 29.5 inches, still 
over quebec. meanwhile, a 29.7 inch colorado low develops, which 
will move over oklahoma at 29.8 inches on saturday while 30.4 inch 
high pressure spans the great lakes. the low ejects into the 
southern great lakes basin early sunday morning at 29.9 inches, 
reaching the southern ontario/quebec border at 29.8 inches sunday 
evening. in its wake, 30.6 inch high pressure moves over the upper 
midwest, sliding south of the great lakes at 30.4 inches monday. the 
high is eroded on tuesday by a low pressure of around 29.8 inches 
over northern ontario and a 29.5 inch nor'easter off the coast of 
the chesapeake bay.



lsz266-272100-
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 am est thu nov 27 2025

...gale warning in effect through friday morning...

.rest of today...north gales to 45 knots backing northwest by mid
afternoon. snow showers. waves 15 to 20 feet occasionally to
25 feet subsiding to 12 to 17 feet occasionally to 21 feet. 
.tonight...northwest gales to 45 knots. scattered snow showers.
waves subsiding to 10 to 14 feet occasionally to 18 feet. 
.friday...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. snow showers. waves subsiding to 6 to
9 feet occasionally to 11 feet. 
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. snow showers in the evening, then
a chance of snow showers after midnight. waves subsiding to 2 to
4 feet. 
.saturday...northwest winds 5 to 15 knots veering north in the
afternoon. snow showers. waves subsiding to calm to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. snow. waves building to 1 to 3 feet. 
.sunday...northwest gales to 35 knots. snow showers likely. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.monday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet. 

$$

fzus63 kmqt 271500
glfls 
expires:202511272100;;598331

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu nov 27 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...

lake superior will spend thanksgiving between a 30.6 inch high over 
the dakotas and a 29.4 inch low over quebec. by friday, the high 
will weaken slightly to 30.5 inches as it shifts over the upper 
mississippi river valley while the low weakens to 29.5 inches, still 
over quebec. meanwhile, a 29.7 inch colorado low develops, which 
will move over oklahoma at 29.8 inches on saturday while 30.4 inch 
high pressure spans the great lakes. the low ejects into the 
southern great lakes basin early sunday morning at 29.9 inches, 
reaching the southern ontario/quebec border at 29.8 inches sunday 
evening. in its wake, 30.6 inch high pressure moves over the upper 
midwest, sliding south of the great lakes at 30.4 inches monday. the 
high is eroded on tuesday by a low pressure of around 29.8 inches 
over northern ontario and a 29.5 inch nor'easter off the coast of 
the chesapeake bay.



lsz267-272100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est thu nov 27 2025

...gale warning in effect through friday morning...

.rest of today...north gales to 45 knots. snow showers. waves
15 to 20 feet occasionally to 25 feet subsiding to 11 to 15 feet
occasionally to 19 feet, then building to 12 to 17 feet
occasionally to 21 feet. 
.tonight...north gales to 40 knots. scattered snow showers. waves
subsiding to 9 to 12 feet occasionally to 15 feet. 
.friday...north gales to 35 knots backing northwest. a slight
chance of sleet in the morning. snow showers. waves subsiding to
6 to 9 feet occasionally to 11 feet. 
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. snow showers. waves subsiding to
2 to 4 feet. 
.saturday...west winds 10 to 20 knots. snow showers. waves
subsiding to calm to 2 feet. 
.saturday night...south winds 10 to 20 knots backing east after
midnight. snow. waves calm to 2 feet. 
.sunday...north winds 20 to 30 knots backing northwest. snow
showers. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.monday...west winds 15 to 25 knots backing southwest. snow
showers likely. waves subsiding to 3 to 5 feet occasionally to
7 feet. 

$$

fzus63 kmqt 271500
glfls 
expires:202511272100;;598326

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu nov 27 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...

lake superior will spend thanksgiving between a 30.6 inch high over 
the dakotas and a 29.4 inch low over quebec. by friday, the high 
will weaken slightly to 30.5 inches as it shifts over the upper 
mississippi river valley while the low weakens to 29.5 inches, still 
over quebec. meanwhile, a 29.7 inch colorado low develops, which 
will move over oklahoma at 29.8 inches on saturday while 30.4 inch 
high pressure spans the great lakes. the low ejects into the 
southern great lakes basin early sunday morning at 29.9 inches, 
reaching the southern ontario/quebec border at 29.8 inches sunday 
evening. in its wake, 30.6 inch high pressure moves over the upper 
midwest, sliding south of the great lakes at 30.4 inches monday. the 
high is eroded on tuesday by a low pressure of around 29.8 inches 
over northern ontario and a 29.5 inch nor'easter off the coast of 
the chesapeake bay.



lsz162-272100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est thu nov 27 2025 /900 am cst thu nov 27 2025/

.rest of today...northwest winds 20 to 30 knots. isolated snow
showers in the afternoon. waves 5 to 8 feet occasionally to
10 feet subsiding to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 10 to 20 knots. a slight chance of snow
showers in the morning. waves subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. a chance of snow showers.
waves calm to 2 feet. 
.saturday night...north winds 10 to 20 knots. a chance of snow.
waves building to 1 to 3 feet. 
.sunday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.monday...west winds 10 to 20 knots. waves building to 1 to
3 feet. 

$$

fzus63 kmqt 271500
glfls 
expires:202511272100;;598327

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu nov 27 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...

lake superior will spend thanksgiving between a 30.6 inch high over 
the dakotas and a 29.4 inch low over quebec. by friday, the high 
will weaken slightly to 30.5 inches as it shifts over the upper 
mississippi river valley while the low weakens to 29.5 inches, still 
over quebec. meanwhile, a 29.7 inch colorado low develops, which 
will move over oklahoma at 29.8 inches on saturday while 30.4 inch 
high pressure spans the great lakes. the low ejects into the 
southern great lakes basin early sunday morning at 29.9 inches, 
reaching the southern ontario/quebec border at 29.8 inches sunday 
evening. in its wake, 30.6 inch high pressure moves over the upper 
midwest, sliding south of the great lakes at 30.4 inches monday. the 
high is eroded on tuesday by a low pressure of around 29.8 inches 
over northern ontario and a 29.5 inch nor'easter off the coast of 
the chesapeake bay.



lsz263-272100-
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 am est thu nov 27 2025

...gale warning in effect until 1 pm est this afternoon...

.rest of today...northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. isolated snow showers. waves 7 to
10 feet occasionally to 13 feet subsiding to 5 to 8 feet
occasionally to 10 feet. 
.tonight...northwest winds 20 to 30 knots. isolated snow showers.
waves building to 6 to 9 feet occasionally to 11 feet, then
subsiding to 4 to 7 feet occasionally to 9 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of snow showers in the morning. waves
subsiding to 1 to 3 feet. 
.friday night...northwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.saturday...north winds 5 to 15 knots. a chance of snow showers.
waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of snow. waves building to 2 to
4 feet. 
.sunday...northwest winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 271500
glfls 
expires:202511272100;;598328

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu nov 27 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...

lake superior will spend thanksgiving between a 30.6 inch high over 
the dakotas and a 29.4 inch low over quebec. by friday, the high 
will weaken slightly to 30.5 inches as it shifts over the upper 
mississippi river valley while the low weakens to 29.5 inches, still 
over quebec. meanwhile, a 29.7 inch colorado low develops, which 
will move over oklahoma at 29.8 inches on saturday while 30.4 inch 
high pressure spans the great lakes. the low ejects into the 
southern great lakes basin early sunday morning at 29.9 inches, 
reaching the southern ontario/quebec border at 29.8 inches sunday 
evening. in its wake, 30.6 inch high pressure moves over the upper 
midwest, sliding south of the great lakes at 30.4 inches monday. the 
high is eroded on tuesday by a low pressure of around 29.8 inches 
over northern ontario and a 29.5 inch nor'easter off the coast of 
the chesapeake bay.



lsz264-272100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est thu nov 27 2025

...gale warning in effect through late tonight...

.rest of today...north gales to 40 knots becoming northwest gales
to 35 knots by mid afternoon. isolated snow showers. waves 11 to
15 feet occasionally to 19 feet subsiding to 9 to 12 feet
occasionally to 15 feet. 
.tonight...northwest gales to 35 knots diminishing to 20 to
30 knots late. isolated snow showers in the evening. waves
subsiding to 6 to 9 feet occasionally to 11 feet. 
.friday...northwest winds 15 to 25 knots. a slight chance of snow
showers. waves subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday night...northwest winds 5 to 15 knots. a slight chance of
snow showers in the evening. waves subsiding to calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots veering north in the
afternoon. a slight chance of snow in the afternoon. waves calm
to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a chance of snow. waves building to 2 to
4 feet. 
.sunday...northwest winds 20 to 30 knots. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 15 to 25 knots. waves subsiding to 3 to
6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 271500
glfls 
expires:202511272100;;598329

open lake forecast for lake superior
national weather service marquette mi
1000 am est thu nov 27 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...

lake superior will spend thanksgiving between a 30.6 inch high over 
the dakotas and a 29.4 inch low over quebec. by friday, the high 
will weaken slightly to 30.5 inches as it shifts over the upper 
mississippi river valley while the low weakens to 29.5 inches, still 
over quebec. meanwhile, a 29.7 inch colorado low develops, which 
will move over oklahoma at 29.8 inches on saturday while 30.4 inch 
high pressure spans the great lakes. the low ejects into the 
southern great lakes basin early sunday morning at 29.9 inches, 
reaching the southern ontario/quebec border at 29.8 inches sunday 
evening. in its wake, 30.6 inch high pressure moves over the upper 
midwest, sliding south of the great lakes at 30.4 inches monday. the 
high is eroded on tuesday by a low pressure of around 29.8 inches 
over northern ontario and a 29.5 inch nor'easter off the coast of 
the chesapeake bay.



lsz265-272100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est thu nov 27 2025

...gale warning in effect through late tonight...

.rest of today...northwest gales to 45 knots. snow showers late
in the morning, then scattered snow showers in the afternoon.
waves 12 to 17 feet occasionally to 21 feet subsiding to 9 to
12 feet occasionally to 15 feet. 
.tonight...northwest gales to 40 knots. scattered snow showers.
waves subsiding to 7 to 10 feet occasionally to 13 feet. 
.friday...northwest gales to 35 knots diminishing to 15 to
25 knots. snow showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.friday night...northwest winds 10 to 20 knots backing west after
midnight. a chance of snow showers. waves subsiding to calm to
2 feet. 
.saturday...west winds 10 to 20 knots becoming north 5 to
15 knots in the afternoon. a chance of snow showers. waves calm
to 2 feet. 
.saturday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. snow. waves building to 1 to 3 feet. 
.sunday...northwest winds 20 to 30 knots. snow showers likely.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots backing southwest. a chance
of snow showers. waves subsiding to 1 to 3 feet. 

$$