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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 31 2025

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 29.4 inch low will cross new york state and new 
england today, and to the canadian maritimes tonight and saturday 
while steadily deepening to 28.7 inches. a large 30.3 inch surface 
high will then build across the ohio valley and lower great lakes 
region through sunday, before sliding east and off the mid-atlantic 
coastline on monday. a cold front will slide east across the lake 
monday night through tuesday.


loz062-311500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri oct 31 2025

...gale warning in effect from noon edt today through late
tonight...

.today...northwest winds to 30 knots increasing to 35 knot gales
this afternoon. showers. waves 5 to 9 feet building to 10 to
14 feet. waves occasionally around 18 feet. 
.tonight...northwest gales to 35 knots diminishing to 30 knots.
showers likely early, then a chance of showers late in the
evening. waves 9 to 13 feet subsiding to 5 to 8 feet. waves
occasionally around 16 feet. 
.saturday...northwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 4 to 7 feet subsiding to
2 to 4 feet. waves occasionally around 9 feet. 
.saturday night...northwest winds 5 to 15 knots. a chance of
showers overnight. waves 1 to 3 feet subsiding to 1 foot or less.
.sunday...northwest winds 5 to 15 knots becoming southwest. a
chance of showers during the day. waves 1 foot or less building
to 1 to 3 feet. 
.monday...southwest winds to 30 knots becoming west. showers.
waves 4 to 7 feet building to 7 to 11 feet. waves occasionally
around 14 feet. 
.tuesday...west winds to 30 knots diminishing to 15 to 25 knots.
a chance of showers during the day. waves 7 to 11 feet subsiding
to 3 to 5 feet. waves occasionally around 14 feet. 

$$

fzus61 kbuf 310802
glflo 
expires:202510311500;;602047

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 31 2025

for waters beyond five nautical miles of shore on lake ontario

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

.synopsis...a 29.4 inch low will cross new york state and new 
england today, and to the canadian maritimes tonight and saturday 
while steadily deepening to 28.7 inches. a large 30.3 inch surface 
high will then build across the ohio valley and lower great lakes 
region through sunday, before sliding east and off the mid-atlantic 
coastline on monday. a cold front will slide east across the lake 
monday night through tuesday.


loz063>065-311500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri oct 31 2025

...gale warning in effect from noon edt today through late
tonight...

.today...northwest winds 15 to 25 knots becoming west and
increasing to 40 knot gales this afternoon. showers. waves 4 to
7 feet building to 12 to 16 feet. waves occasionally around
20 feet. 
.tonight...northwest gales to 35 knots diminishing to 30 knots.
showers in the evening, then a chance of showers after midnight.
waves 13 to 17 feet subsiding to 9 to 12 feet. waves occasionally
around 22 feet. 
.saturday...northwest winds to 30 knots becoming west 15 to
25 knots. a chance of showers. waves 7 to 10 feet subsiding to
3 to 6 feet. waves occasionally around 13 feet. 
.saturday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. a chance of showers overnight. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.sunday...northwest winds 5 to 15 knots becoming south. a chance
of showers during the day. waves 1 foot or less building to 1 to
3 feet. 
.monday...south winds 15 to 25 knots becoming west to 30 knots.
showers. waves 3 to 6 feet building to 9 to 13 feet. waves
occasionally around 16 feet. 
.tuesday...west winds to 30 knots diminishing to 15 to 20 knots.
a chance of showers. waves 10 to 13 feet subsiding to 4 to
7 feet. waves occasionally around 16 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
336 am edt fri oct 31 2025

for waters beyond five nautical miles of shore on lake erie

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

.synopsis...
low pressure will deepen to 29.10 inches as it approaches 
northern new england today. a trough averaging 29.70 inches will 
linger behind the low through saturday before high pressure 30.20 
inches will build across the region on sunday into monday. a 
trough averaging 29.70 inches will dip south on tuesday.


lez061-167>169-311415-
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-
336 am edt fri oct 31 2025

.today...northwest winds to 30 knots becoming west. showers
likely early, then a chance of showers. a slight chance of
showers late. waves 5 to 9 feet building to 8 to 12 feet. waves
occasionally around 15 feet. 
.tonight...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. a slight chance of showers. waves
7 to 11 feet subsiding to 5 to 8 feet. waves occasionally around
14 feet. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the afternoon. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.saturday night...west winds 10 knots or less becoming east. a
chance of showers. waves 1 to 3 feet subsiding to 1 foot or less.
.sunday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of showers during the day. waves 2 feet or
less building to 3 to 5 feet. 
.monday...southwest winds to 30 knots becoming west. showers
likely during the day, then a chance of showers monday night.
waves 5 to 8 feet building to 8 to 11 feet, then subsiding to
6 to 9 feet. waves occasionally around 14 feet. 
.tuesday...west winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. waves 4 to 7 feet subsiding to
2 to 4 feet. waves occasionally around 9 feet. 

$$