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open lake forecast for lake ontario
national weather service buffalo ny
402 am est sat jan 3 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 28.8 inch low will continue to move north across 
northern quebec through tonight. a 30.3 inch high will then build 
from the western great lakes sunday to the lower great lakes by 
early monday, then drift 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 build from the ohio valley wednesday to the mid atlantic 
thursday.


loz063>065-031600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am est sat jan 3 2026

.today...west winds 15 to 20 knots becoming northwest 10 to
15 knots. lake effect snow. waves 4 to 7 feet subsiding to 2 to
4 feet. waves occasionally around 9 feet. 
.tonight...west winds 5 to 15 knots becoming northwest. snow.
waves 1 to 3 feet. 
.sunday...north winds 10 to 15 knots becoming northwest 15 to
20 knots. lake effect snow showers likely. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday night...northwest winds 15 to 20 knots becoming northeast
5 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...southeast winds 10 to 15 knots becoming south. snow
showers likely. waves 2 feet or less. 
.tuesday...south winds 5 to 15 knots. rain showers likely tuesday
night. waves 2 feet or less. 
.wednesday...southwest winds 5 to 15 knots becoming west. rain
showers likely during the day. waves 1 to 3 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est sat jan 3 2026


slz022-024-031600-
saint lawrence river from cape vincent to saint regis
402 am est sat jan 3 2026

.today...northwest winds 10 knots or less becoming west. mostly
cloudy. 
.tonight...light and variable winds. a chance of snow showers
from late evening on. 
.sunday...north winds 10 knots or less becoming northwest. partly
to mostly sunny. 
.sunday night...northwest winds less than 10 knots. mainly clear
in the evening, then becoming partly cloudy. 
.monday...southeast winds less than 10 knots becoming northeast.
snow showers likely. 
.tuesday...northeast winds less than 10 knots becoming east. snow
showers likely tuesday night. 
.wednesday...south winds 10 knots or less becoming southwest.
snow showers likely with a chance of rain showers during the day.

$$