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open lake forecast for lake ontario
national weather service buffalo ny
406 pm est sat feb 21 2026

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 29.8 inch low will move off the carolina coast 
tonight, then will deepen to 28.8 inches as it tracks northeastward 
off the mid-atlantic and new england coastlines sunday through 
monday. a 30.1 inch high is then forecast to weaken and slide across 
the lower great lakes on tuesday and new england on wednesday. a 
29.4 inch low will track southeast across the eastern great lakes 
wednesday into early thursday. a sfc low of 29.5 inches will track 
from the tennessee valley to the gulf of maine from thursday through 
friday, staying well south and east of the lake.


loz062-063-220400-
lake ontario open waters from the niagara river to sodus bay-
406 pm est sat feb 21 2026

.tonight...east winds 15 to 20 knots becoming southeast 5 to
15 knots. snow showers early, then a chance of snow showers from
late evening on. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...southeast winds 5 to 10 knots becoming east. snow.
waves 2 feet or less. 
.sunday night...east winds 10 to 15 knots becoming northeast
15 to 20 knots. snow. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...north winds 15 to 25 knots becoming northwest. snow.
waves 3 to 6 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.monday night...northwest winds to 30 knots diminishing to 15 to
20 knots. snow likely. waves 5 to 8 feet subsiding to 3 to
6 feet. waves occasionally around 10 feet. 
.tuesday...northwest winds 15 to 20 knots becoming southeast. a
chance of snow showers during the day, then snow likely tuesday
night. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming west. snow
likely with a chance of rain during the day, then a chance of
rain and snow showers wednesday night. waves 2 to 4 feet building
to 3 to 5 feet. 
.thursday...west winds 15 to 20 knots becoming northwest. a
chance of snow showers, rain showers and freezing rain during the
day, then a chance of snow and rain showers thursday night. waves
3 to 5 feet. 

$$

fzus61 kbuf 212106
glflo 
expires:202602220400;;031886

open lake forecast for lake ontario
national weather service buffalo ny
406 pm est sat feb 21 2026

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 29.8 inch low will move off the carolina coast 
tonight, then will deepen to 28.8 inches as it tracks northeastward 
off the mid-atlantic and new england coastlines sunday through 
monday. a 30.1 inch high is then forecast to weaken and slide across 
the lower great lakes on tuesday and new england on wednesday. a 
29.4 inch low will track southeast across the eastern great lakes 
wednesday into early thursday. a sfc low of 29.5 inches will track 
from the tennessee valley to the gulf of maine from thursday through 
friday, staying well south and east of the lake.


loz064-065-220400-
lake ontario open waters from sodus bay to the saint lawrence
river-
406 pm est sat feb 21 2026

.tonight...northeast winds 10 knots or less becoming east. a
chance of snow showers early. waves 2 feet or less. 
.sunday...east winds 5 to 10 knots. a chance of snow showers
early, then snow. a chance of snow showers late. waves 1 foot or
less. 
.sunday night...east winds 5 to 15 knots becoming north 15 to
20 knots. snow. waves 2 feet or less building to 2 to 4 feet. 
.monday...north winds 15 to 25 knots. a chance of snow showers in
the morning, then snow likely in the afternoon. waves 3 to
6 feet. 
.monday night...north winds 15 to 25 knots becoming northwest.
snow likely. waves 3 to 6 feet. 
.tuesday...northwest winds 15 to 20 knots becoming southeast
10 to 15 knots. a chance of snow showers during the day, then a
chance of snow tuesday night. waves 3 to 6 feet subsiding to
2 feet or less. 
.wednesday...southeast winds 15 to 20 knots becoming west. snow
likely with a chance of rain during the day, then snow and rain
showers likely wednesday night. waves 1 to 3 feet building to
3 to 5 feet. 
.thursday...west winds 15 to 20 knots becoming northwest. a
chance of snow showers, rain showers and freezing rain during the
day, then a chance of snow showers thursday night. waves 3 to
5 feet. 

$$