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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est thu jan 1 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 29.2 inch coastal low near southern new brunswick this 
late morning will deepen to 28.8 inches as it moves north across the 
canadian maritimes tonight through friday, then to northern quebec 
by saturday. a 30.3 inch high will then build from the western great 
lakes sunday to the lower great lakes by early monday.


loz063>065-012200-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am est thu jan 1 2026

.rest of today...northwest winds 15 to 20 knots becoming west. a
chance of snow showers late this morning, then lake effect snow
this afternoon. waves 3 to 6 feet. 
.tonight...west winds 15 to 25 knots becoming northwest. lake
effect snow. waves 5 to 8 feet. waves occasionally around
10 feet. 
.friday...northwest winds 15 to 25 knots becoming west. lake
effect snow. waves 5 to 8 feet. waves occasionally around
10 feet. 
.friday night...west winds 15 to 25 knots becoming northwest.
lake effect snow. waves 5 to 8 feet. waves occasionally around
10 feet. 
.saturday...northwest winds 15 to 20 knots becoming north 5 to
15 knots. lake effect snow showers likely. waves 4 to 7 feet
subsiding to 1 to 3 feet. waves occasionally around 9 feet. 
.sunday...northwest winds 15 to 20 knots becoming north and
diminishing to 5 to 10 knots. snow showers likely during the day,
then a chance of snow showers sunday night. waves 1 to 3 feet. 
.monday...east winds 5 to 15 knots becoming south. snow showers
likely. waves 2 feet or less. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est thu jan 1 2026


slz022-024-012200-
saint lawrence river from cape vincent to saint regis
1002 am est thu jan 1 2026

.this afternoon...west winds 5 to 10 knots. mostly sunny. 
.tonight...southwest winds less than 10 knots. partly to mostly
cloudy. 
.friday...light and variable winds. partly to mostly sunny. 
.friday night...west winds 10 knots or less. partly to mostly
cloudy. 
.saturday...northwest winds less than 10 knots. a chance of snow
showers saturday night. 
.sunday...north winds less than 10 knots. a chance of snow
showers during the day. 
.monday...south winds less than 10 knots becoming east. a chance
of snow showers. 

$$