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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
625 am edt thu jul 16 2020


slz022-024-161515-
saint lawrence river from cape vincent to saint regis
625 am edt thu jul 16 2020

.today...south winds 5 to 10 knots. a chance of showers and
thunderstorms early this afternoon. showers and thunderstorms
likely late. some thunderstorms may produce gusty winds late. 
.tonight...south winds 5 to 15 knots. showers and thunderstorms
likely. some thunderstorms may produce gusty winds in the
evening. 
.friday...south winds 5 to 15 knots becoming southwest. showers
and thunderstorms likely in the morning, then a chance of showers
in the afternoon. 
.friday night...southwest winds 10 knots or less. mainly clear. 
.saturday...southwest winds 10 knots or less becoming south.
mainly clear, then becoming partly cloudy. 
.sunday...southwest winds 5 to 10 knots. a chance of showers
during the day, then a chance of showers and thunderstorms sunday
night. 
.monday...west winds 10 knots or less becoming north. a chance of
showers and thunderstorms during the day. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake ontario
national weather service buffalo ny
623 am edt thu jul 16 2020

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 30.3 inch high will remain over eastern quebec and 
the mouth of the saint lawrence river through this afternoon
while a pair of weak boundaries push east across the lower great 
lakes. a 30.1 inch high over the mid-western states late tonight 
will gradually push across pennsylvania and the lower great lakes
friday and saturday. a wavy frontal boundary will approach the 
region late saturday night and sunday.


loz063>065-161515-
lake ontario open waters from hamlin beach to the saint lawrence
river-
623 am edt thu jul 16 2020

.today...south winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of showers and thunderstorms late this
morning. showers and thunderstorms likely this afternoon. some
thunderstorms may produce gusty winds this afternoon. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...southeast winds 15 to 25 knots becoming southwest.
showers and thunderstorms. some thunderstorms may produce gusty
winds in the evening. waves 1 to 3 feet building to 3 to 6 feet. 
.friday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms in the morning.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday night...west winds 5 to 15 knots. waves 1 to 3 feet. 
.saturday...southwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.sunday...southwest winds 5 to 15 knots. a chance of showers
during the day, then a chance of showers and thunderstorms sunday
night. waves 1 to 2 feet. 
.monday...west winds 5 to 15 knots becoming northwest. a chance
of showers and thunderstorms during the day. waves 2 feet or
less. 

winds and waves higher in and near thunderstorms.

$$