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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm 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, with a surface trough passing 
across the lake tonight. a 30.3 inch high will then build 
from the western great lakes tomorrow 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 proceed to build from the ohio valley wednesday to the mid 
atlantic thursday.


loz063>065-041000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est sat jan 3 2026

.overnight...northwest winds 10 to 15 knots becoming north
15 to 20 knots. snow. waves 2 to 4 feet building to 3 to 5 feet,
then subsiding to 2 to 4 feet. 
.sunday...north winds 10 to 15 knots becoming northwest 15 to
20 knots. lake effect snow likely through early afternoon, then a
chance of snow showers late. waves 1 to 3 feet building to 3 to
6 feet. 
.sunday night...northwest winds 15 to 20 knots becoming southeast
and diminishing to 5 to 10 knots. a chance of snow showers in the
evening. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...southeast winds 5 to 15 knots. snow showers. waves
2 feet or less. 
.monday night...southeast winds 5 to 15 knots becoming east. snow
showers in the evening, then a chance of snow overnight. waves
2 feet or less. 
.tuesday...southeast winds 5 to 15 knots. rain likely tuesday
night. waves 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming west 10 to
15 knots. rain likely during the day. waves 1 to 3 feet building
to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming southeast. a
chance of rain thursday night. 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
1002 pm est sat jan 3 2026


slz022-024-041000-
saint lawrence river from cape vincent to saint regis
1002 pm est sat jan 3 2026

.overnight...north winds 10 knots or less. a chance of snow
showers. 
.sunday...north winds 10 knots or less becoming northwest. partly
sunny early, then becoming mostly sunny. 
.sunday night...northwest winds 10 knots or less becoming south.
mainly clear in the evening, then becoming partly cloudy. 
.monday...southeast winds less than 10 knots becoming east. snow
showers. 
.monday night...northeast winds less than 10 knots. snow showers
in the evening, then a chance of snow overnight. 
.tuesday...northeast winds 10 knots or less becoming east. snow
likely tuesday night. 
.wednesday...southeast winds 10 knots or less becoming southwest.
snow and rain likely during the day, then a chance of snow
showers wednesday night. 
.thursday...southwest winds 10 knots or less becoming southeast.
a chance of rain and snow thursday night. 

$$