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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 30 2025

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.5 inch surface high will drift along the northeast 
coast to the canadian maritimes through tonight. a 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 cold front from this low will cross the 
lake late sunday night. a 30.4 inch surface high centered over the 
central plains will then build east across the great lakes monday, 
sliding quickly to new england on tuesday. a 29.7 inch surface low 
off the carolina coastline tuesday morning will deepen to 28.9 
inches over southern atlantic canada by early wednesday morning 
before going out to sea. a 30.2 inch surface high will build across 
the ohio valley and lower great lakes later wednesday into thursday 
morning before pushing off the coast. a large 29.2 inch surface low 
near hudson bay will push its cold front across the lake on thursday.


loz062-302200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est sun nov 30 2025

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

.this afternoon...south winds to 30 knots becoming southwest and
increasing to 35 knot gales. rain. waves 4 to
7 feet building to 10 to 13 feet. waves occasionally around
16 feet. 
.tonight...southwest gales to 35 knots becoming northwest and
diminishing to 30 knots after midnight. a chance of rain and snow
showers through the early overnight. waves 11 to 15 feet
subsiding to 6 to 9 feet. waves occasionally around 19 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest 5 to
15 knots. waves 4 to 7 feet subsiding to 1 foot or less. waves
occasionally around 9 feet. 
.monday night...southwest winds 5 to 15 knots becoming south.
snow showers overnight. waves 2 feet or less. 
.tuesday...southwest winds 5 to 15 knots becoming west. snow
showers during the day. waves 2 feet or less. 
.wednesday...southwest winds 15 to 25 knots becoming west to
30 knots. snow showers likely wednesday night. waves 3 to 5 feet
building to 7 to 10 feet. waves occasionally around 13 feet. 
.thursday...west winds to 30 knots diminishing to 10 to 15 knots.
snow showers likely during the day, then a chance of snow showers
thursday night. waves 6 to 10 feet subsiding to 2 to 4 feet.
waves occasionally around 13 feet. 

$$

fzus61 kbuf 301502
glflo 
expires:202511302200;;769361

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est sun nov 30 2025

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 30.5 inch surface high will drift along the northeast 
coast to the canadian maritimes through tonight. a 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 cold front from this low will cross the 
lake late sunday night. a 30.4 inch surface high centered over the 
central plains will then build east across the great lakes monday, 
sliding quickly to new england on tuesday. a 29.7 inch surface low 
off the carolina coastline tuesday morning will deepen to 28.9 
inches over southern atlantic canada by early wednesday morning 
before going out to sea. a 30.2 inch surface high will build across 
the ohio valley and lower great lakes later wednesday into thursday 
morning before pushing off the coast. a large 29.2 inch surface low 
near hudson bay will push its cold front across the lake on thursday.


loz063-302200-
lake ontario open waters from hamlin beach to sodus bay-
1002 am est sun nov 30 2025

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

.this afternoon...south winds to 30 knots becoming southwest and
increasing to 35 knot gales. rain, then rain
showers likely late. waves 6 to 10 feet building to 9 to 12 feet.
waves occasionally around 15 feet. 
.tonight...southwest gales to 35 knots becoming northwest and
diminishing to 30 knots after midnight. a chance of rain and snow
showers through the early overnight, then a chance of snow
showers late. waves 11 to 16 feet subsiding to 9 to 12 feet.
waves occasionally around 20 feet. 
.monday...northwest winds 15 to 25 knots becoming west and
diminishing to 5 to 15 knots. waves 7 to 10 feet subsiding to
1 to 3 feet. waves occasionally around 13 feet. 
.monday night...south winds 5 to 15 knots increasing to 15 to
20 knots. snow showers likely overnight. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming west 5 to
15 knots. snow showers likely during the day, then a chance of
snow showers tuesday night. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots increasing to
30 knots. snow showers likely wednesday night. waves 2 to 4 feet
building to 8 to 11 feet. waves occasionally around 14 feet. 
.thursday...west gales to 35 knots becoming northwest and
diminishing to 15 to 20 knots. snow showers likely during the
day, then a chance of snow showers thursday night. waves 8 to
12 feet subsiding to 3 to 6 feet. waves occasionally around
15 feet. 

$$

fzus61 kcle 301448
glfle 
expires:202511302130;;768744

open lake forecast for lake erie
national weather service cleveland oh
948 am est sun nov 30 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...
low pressure will deepen to 29.70 inches as it tracks northeastward
from northern lake huron to southwestern quebec by this early
evening. accordingly, the trailing cold front over central lake
erie late this morning will exit the rest of lake erie by this
early afternoon. behind the front, a trough averaging 30.10 inches
lingers over the lake through this early evening before a ridge 
averaging 30.50 inches moves eastward across the lake erie region 
tonight through monday. during monday night through tuesday, a low
should deepen to 29.40 inches as it wobbles northeastward from 
the northwestern gulf to atlantic waters near the delmarva 
peninsula. simultaneously, the low will extend a trough averaging 
30.00 inches over lake erie. on tuesday night through wednesday, a
ridge averaging 30.50 inches should build from the lower ohio 
valley and vicinity before a cold front sweeps southeastward 
across lake erie wednesday night. behind the cold front, a ridge 
averaging 30.20 inches should build from the upper midwest through
thursday before exiting slowly eastward thursday night through
friday.


lez163-164-302130-
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-
948 am est sun nov 30 2025

...gale warning in effect until 4 pm est this afternoon...
...low water advisory in effect until 10 pm est this evening...

.rest of today...southwest gales to 35 knots becoming west. a
chance of rain and snow late this morning. a slight chance of
snow late. waves 6 to 9 feet. waves occasionally around 11 feet. 
.tonight...west winds to 30 knots becoming northwest and
diminishing to 10 to 15 knots after midnight. a slight chance of
snow early. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.monday...northwest winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.monday night...southeast winds 10 knots or less becoming
southwest. snow. waves 1 foot or less. 
.tuesday...northwest winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. a chance of snow during the day.
waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west. a
chance of snow wednesday night. waves 2 to 4 feet building to
3 to 6 feet. 
.thursday...northwest winds to 30 knots becoming southwest and
diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
1 to 2 feet. 

$$

fzus61 kcle 301448
glfle 
expires:202511302130;;768743

open lake forecast for lake erie
national weather service cleveland oh
948 am est sun nov 30 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...
low pressure will deepen to 29.70 inches as it tracks northeastward
from northern lake huron to southwestern quebec by this early
evening. accordingly, the trailing cold front over central lake
erie late this morning will exit the rest of lake erie by this
early afternoon. behind the front, a trough averaging 30.10 inches
lingers over the lake through this early evening before a ridge 
averaging 30.50 inches moves eastward across the lake erie region 
tonight through monday. during monday night through tuesday, a low
should deepen to 29.40 inches as it wobbles northeastward from 
the northwestern gulf to atlantic waters near the delmarva 
peninsula. simultaneously, the low will extend a trough averaging 
30.00 inches over lake erie. on tuesday night through wednesday, a
ridge averaging 30.50 inches should build from the lower ohio 
valley and vicinity before a cold front sweeps southeastward 
across lake erie wednesday night. behind the cold front, a ridge 
averaging 30.20 inches should build from the upper midwest through
thursday before exiting slowly eastward thursday night through
friday.


lez162-302130-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
948 am est sun nov 30 2025

...low water advisory in effect until 10 pm est this evening...

.rest of today...southwest winds to 30 knots becoming west. a
chance of snow and rain late this morning. a slight chance of
snow late. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.tonight...west winds 15 to 25 knots becoming northwest and
diminishing to around 10 knots after midnight. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.monday...northwest winds 10 knots or less becoming south. waves
1 foot or less. 
.monday night...southeast winds 10 knots or less becoming
southwest. snow. waves 1 foot or less. 
.tuesday...northwest winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. waves 2 feet or less. 
.wednesday...southwest winds 15 to 25 knots becoming west. a
chance of snow wednesday night. waves 2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$

fzus61 kcle 301448
glfle 
expires:202511302130;;768745

open lake forecast for lake erie
national weather service cleveland oh
948 am est sun nov 30 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...
low pressure will deepen to 29.70 inches as it tracks northeastward
from northern lake huron to southwestern quebec by this early
evening. accordingly, the trailing cold front over central lake
erie late this morning will exit the rest of lake erie by this
early afternoon. behind the front, a trough averaging 30.10 inches
lingers over the lake through this early evening before a ridge 
averaging 30.50 inches moves eastward across the lake erie region 
tonight through monday. during monday night through tuesday, a low
should deepen to 29.40 inches as it wobbles northeastward from 
the northwestern gulf to atlantic waters near the delmarva 
peninsula. simultaneously, the low will extend a trough averaging 
30.00 inches over lake erie. on tuesday night through wednesday, a
ridge averaging 30.50 inches should build from the lower ohio 
valley and vicinity before a cold front sweeps southeastward 
across lake erie wednesday night. behind the cold front, a ridge 
averaging 30.20 inches should build from the upper midwest through
thursday before exiting slowly eastward thursday night through
friday.


lez165-166-302130-
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-
948 am est sun nov 30 2025

...gale warning in effect until 7 pm est this evening...

.rest of today...southwest gales to 40 knots becoming west. rain
likely late this morning, then a slight chance of rain and snow
early this afternoon. a chance of snow with a slight chance of
rain late. waves 11 to 15 feet. waves occasionally around
19 feet. 
.tonight...west gales to 35 knots becoming northwest and
diminishing to 15 to 20 knots after midnight. snow likely with a
slight chance of rain early, then a chance of snow late in the
evening. waves 10 to 13 feet subsiding to 3 to 6 feet. waves
occasionally around 16 feet. 
.monday...northwest winds 5 to 15 knots becoming south less than
10 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.monday night...southeast winds 10 knots or less becoming south.
a chance of snow in the evening, then snow overnight. waves
1 foot or less. 
.tuesday...northwest winds 5 to 15 knots becoming west 15 to
20 knots. a chance of snow during the day. waves 2 feet or less
building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west to
30 knots. snow likely wednesday night. waves 4 to 7 feet building
to 6 to 10 feet. waves occasionally around 13 feet. 
.thursday...west winds to 30 knots diminishing to 15 to 25 knots.
a chance of snow during the day. waves 6 to 10 feet subsiding to
2 to 4 feet. waves occasionally around 13 feet. 

$$

fzus61 kcle 301448
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expires:202511302130;;768746

open lake forecast for lake erie
national weather service cleveland oh
948 am est sun nov 30 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...
low pressure will deepen to 29.70 inches as it tracks northeastward
from northern lake huron to southwestern quebec by this early
evening. accordingly, the trailing cold front over central lake
erie late this morning will exit the rest of lake erie by this
early afternoon. behind the front, a trough averaging 30.10 inches
lingers over the lake through this early evening before a ridge 
averaging 30.50 inches moves eastward across the lake erie region 
tonight through monday. during monday night through tuesday, a low
should deepen to 29.40 inches as it wobbles northeastward from 
the northwestern gulf to atlantic waters near the delmarva 
peninsula. simultaneously, the low will extend a trough averaging 
30.00 inches over lake erie. on tuesday night through wednesday, a
ridge averaging 30.50 inches should build from the lower ohio 
valley and vicinity before a cold front sweeps southeastward 
across lake erie wednesday night. behind the cold front, a ridge 
averaging 30.20 inches should build from the upper midwest through
thursday before exiting slowly eastward thursday night through
friday.


lez061-167>169-302130-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
948 am est sun nov 30 2025

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

.rest of today...southwest gales to 40 knots. rain late this
morning, then a chance of rain and snow early this afternoon. a
chance of snow with a slight chance of rain late. waves 11 to
16 feet. waves occasionally around 20 feet. 
.tonight...west gales to 40 knots becoming northwest and
diminishing to 15 to 25 knots after midnight. rain with snow
likely in the evening, then a chance of snow after midnight.
waves 12 to 16 feet subsiding to 4 to 7 feet. waves occasionally
around 20 feet. 
.monday...northwest winds 5 to 15 knots becoming southwest less
than 10 knots. waves 3 to 5 feet subsiding to 1 foot or less. 
.monday night...south winds 5 to 10 knots. a chance of snow in
the evening, then snow overnight. waves 1 foot or less. 
.tuesday...west winds 5 to 15 knots increasing to 15 to 20 knots.
snow likely during the day. waves 2 feet or less building to 2 to
4 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of snow wednesday night. waves 4 to 7 feet
building to 7 to 11 feet. waves occasionally around 14 feet. 
.thursday...west winds to 30 knots diminishing to 10 to 15 knots.
a chance of snow during the day. waves 7 to 10 feet subsiding to
2 to 4 feet. waves occasionally around 13 feet. 

$$

fzus63 kdtx 301440
glflh 
expires:202511302245;;768525

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am est sun nov 30 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, 29.70 inches, will lift northeast over
central lake huron sunday morning before departing for ontario by
afternoon. a period of northwest gales behind the low is expected
over much of lake huron late in the afternoon and early evening
hours. a gale warning is in effect for much of lake huron during
this time.


lhz361-302245-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
940 am est sun nov 30 2025

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


$$

fzus63 kdtx 301440
glflh 
expires:202511302245;;768526

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 am est sun nov 30 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, 29.70 inches, will lift northeast over
central lake huron sunday morning before departing for ontario by
afternoon. a period of northwest gales behind the low is expected
over much of lake huron late in the afternoon and early evening
hours. a gale warning is in effect for much of lake huron during
this time.


lhz362-363-462>464-302245-
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-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
940 am est sun nov 30 2025

...gale warning in effect from 2 pm est this afternoon through
this evening...

.rest of today...northeast winds 10 to 15 knots becoming north
15 to 20 knots early in the afternoon...then becoming west to
30 knots with gusts to 35 knot gales late in the afternoon. rain
and snow. waves 6 to 9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds to 30 knots with gusts to 35 knot
gales becoming west 15 to 20 knots. a chance of snow in the
evening. waves 12 to 16 feet subsiding to 8 to 12 feet early in
the morning. waves occasionally around 20 feet. 
.monday...west winds 10 to 15 knots becoming southwest 15 to
20 knots early in the afternoon. waves 5 to 7 feet subsiding to
3 to 5 feet in the late morning and afternoon. waves occasionally
around 10 feet. 
.monday night...southwest winds 15 to 20 knots. snow likely.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday...west winds 10 to 15 knots increasing to 15 to 20 knots
late in the evening. waves 3 to 5 feet building to 4 to 6 feet
late in the evening. waves occasionally around 8 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots early in the evening...then
decreasing to 20 to 25 knots in the late evening and early
morning. a chance of snow early in the morning...then snow likely
until early morning. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.thursday...west winds to 30 knots decreasing to 20 to 25 knots
with gusts to around 30 knots. a chance of snow. waves 6 to
9 feet. waves occasionally around 12 feet. 


$$

fzus63 kdtx 301439
glfsc 
expires:202511302245;;768520

lake st clair forecast
national weather service detroit/pontiac mi
939 am est sun nov 30 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, 29.70 inches, will lift northeast over
central lake huron sunday morning before departing for ontario by
afternoon. a period of northwest gales behind the low is expected
over much of lake huron late in the afternoon and early evening
hours. a gale warning is in effect for much of lake huron during
this time.


lcz460-302245-
lake st clair-
939 am est sun nov 30 2025

...small craft advisory in effect through this evening...

.rest of today...southwest winds 20 to 25 knots becoming west 15 to
20 knots late in the afternoon. gusts to 30 knots. mostly cloudy. a
chance of light snow late in the morning. a chance of light snow
late in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet
late in the afternoon.
.tonight...northwest winds 20 to 25 knots with gusts to 30 knots
diminishing to 10 to 15 knots. partly cloudy early in the evening
then clearing. waves 1 to 3 feet.
.monday...west winds 5 to 10 knots backing to the southwest early in
the afternoon. partly sunny. waves 2 feet or less.
.monday night...light and variable winds becoming southwest 5 to 10
knots. light snow likely until early morning...then light snow after
midnight. waves 2 feet or less.
.tuesday...northwest winds 5 to 10 knots. partly cloudy. waves 2
feet or less.
.wednesday...southwest winds 20 to 25 knots. mostly cloudy with a
chance of light snow. waves 2 to 4 feet.
.thursday...west winds 20 to 25 knots. partly cloudy. a chance of
light snow. waves 1 to 3 feet.

$$