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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
754 pm edt fri oct 15 2021


slz022-024-160315-
saint lawrence river from cape vincent to saint regis
754 pm edt fri oct 15 2021

.tonight...variable winds under 10 knots becoming southeast. 
showers with a chance of thunderstorms from late evening on. 
.saturday...south winds 10 to 15 knots becoming west. showers
with a chance of thunderstorms. 
.saturday night...west winds 10 to 15 knots. showers in the
evening, then just a chance of showers overnight. 
.sunday...southwest winds 10 to 15 knots. a chance of showers in 
the morning, then showers likely in the afternoon. 
.sunday night...west winds 5 to 10 knots. showers likely. 
.monday...northwest winds 10 to 15 knots. a chance of showers.
.tuesday...west winds 10 to 15 knots. partly cloudy. 
.wednesday...west winds 10 knots or less. partly to mostly
cloudy. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake ontario
national weather service buffalo ny
752 pm edt fri oct 15 2021

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 29.7 inch area of low pressure will move from
northwest ohio, deepen to 29.5 inches as it passes by the lake 
tonight, and eventually strengthen to 29.3 inches as it reaches 
southern ontario on saturday. this low will drag a sharp cold front
across the lake saturday morning. behind this cold front surface 
high pressure averaging 30.0 inches over the mississippi valley 
will slowly build towards the lake by tuesday.


loz063>065-160400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
752 pm edt fri oct 15 2021

.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots. showers likely with scattered thunderstorms. some
thunderstorms may produce strong winds this evening. waves 1 to 3
feet. 
.saturday...southwest winds 15 to 25 knots becoming west. showers
with a chance of thunderstorms. waves 2 to 4 feet building to
5 to 8 feet. waves occasionally around 10 feet. 
.saturday night...west winds to 30 knots diminishing to 15 to
25 knots. a chance of waterspouts. lake effect showers with some
rumbles of thunder possible. waves 6 to 10 feet subsiding to 5 to
8 feet. waves occasionally around 13 feet. 
.sunday...west winds 15 to 25 knots. a chance of waterspouts.
lake effect showers with some rumbles of thunder possible. waves
5 to 8 feet. waves occasionally around 10 feet. 
.sunday night...northwest winds 15 to 25 knots. a chance of
waterspouts. lake effect showers. waves 5 to 9 feet subsiding to 
4 to 7 feet. waves occasionally around 11 feet. 
.monday...northwest winds 15 to 25 knots. showers likely. waves 4
to 7 feet. waves occasionally around 9 feet. 
.tuesday...west winds 15 to 20 knots. waves 3 to 6 feet. 
.wednesday...west winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$