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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est sun jan 4 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 30.2 inch high will then slide from the western great 
lakes to the lower great lakes by early monday, before drifting off 
the east coast monday night. a weak 29.6 inch low will then cross 
the lower great lakes tuesday night before moving off the new 
england coast wednesday. a 30.1 inch high will then proceed to build 
from the ohio valley wednesday to the mid atlantic thursday.


loz063>065-051000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est sun jan 4 2026

.overnight...north winds 5 to 15 knots becoming east. a
chance of snow late. waves 1 to 3 feet. 
.monday...southeast winds 10 to 15 knots. snow. waves 2 feet or
less. 
.monday night...southeast winds 5 to 10 knots. snow in the
evening. waves 2 feet or less. 
.tuesday...southeast winds 5 to 15 knots. a chance of rain
showers in the afternoon. waves 2 feet or less. 
.tuesday night...southeast winds 10 to 15 knots becoming west
15 to 20 knots. rain showers likely in the evening, then rain
showers and freezing rain likely overnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. rain showers likely, a chance of snow showers and
freezing rain likely during the day. waves 3 to 5 feet subsiding
to 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. a chance of rain showers thursday night. waves 1 to
3 feet building to 2 to 4 feet. 
.friday...south winds 15 to 20 knots becoming east. a chance of
rain showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 pm est sun jan 4 2026


slz022-024-051000-
saint lawrence river from cape vincent to saint regis
1002 pm est sun jan 4 2026

.overnight...light and variable winds. partly cloudy, then
becoming mostly cloudy. 
.monday...light and variable winds. a chance of snow early, then
snow from late morning on. 
.monday night...northeast winds less than 10 knots. occasional
snow in the evening. 
.tuesday...northeast winds 10 knots or less. a chance of snow
showers in the afternoon. 
.tuesday night...east winds 5 to 10 knots becoming south. snow
showers and freezing rain likely. 
.wednesday...west winds 10 knots or less becoming southwest. snow
showers likely during the day. 
.thursday...southwest winds 10 knots or less becoming south. a
chance of rain showers thursday night. 
.friday...southwest winds 5 to 10 knots becoming east. a chance
of rain showers. 

$$