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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
950 pm edt mon apr 22 2024


slz022-024-230915-
saint lawrence river from cape vincent to saint regis
950 pm edt mon apr 22 2024

.overnight...southwest winds 5 to 15 knots becoming south.
mainly clear. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. mostly sunny early, then becoming mostly cloudy. 
.tuesday night...southwest winds 15 to 20 knots becoming west
5 to 15 knots. occasional showers in the evening, then rain
overnight. 
.wednesday...northwest winds 10 to 15 knots becoming north.
occasional rain showers with snow showers likely in the morning,
then a chance of rain and snow showers in the afternoon. 
.wednesday night...north winds 10 knots or less. clear.
.thursday...north winds 10 knots or less becoming south. mainly
clear. 
.friday...south winds 10 knots or less becoming southeast. clear,
then becoming partly cloudy. 
.saturday...south winds 10 to 15 knots. a chance of showers
during the day, then showers likely saturday night. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
949 pm edt mon apr 22 2024

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 30.2 inch high will slip off the east coast
overnight and into tuesday, while a 29.5 inch surface low deepens
across the western great lakes. the low will slowly weaken to 
29.7 inches as crosses the lake late tuesday night and wednesday 
while dragging a cold front across the lake. a 30.4 inch high 
will then build across the lake wednesday night through thursday 
night, before strengthening to 30.6 inches as it slides to the new
england coast on friday. a 29.3 inch low across the plains states
on friday will track across lake superior on saturday.


loz063>065-230915-
lake ontario open waters from hamlin beach to the saint lawrence
river-
949 pm edt mon apr 22 2024

.overnight...south winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. a
chance of showers late. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.tuesday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. occasional showers in the evening, then rain
overnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...northwest winds 15 to 25 knots becoming north.
occasional rain showers with a chance of snow showers in the
morning, then a chance of rain and snow showers in the afternoon.
waves 1 to 3 feet building to 4 to 7 feet, then subsiding to 3 to
5 feet. waves occasionally around 9 feet. 
.wednesday night...northwest winds 15 to 20 knots becoming
northeast 10 to 15 knots. waves 1 to 3 feet. 
.thursday...northeast winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.friday...southeast winds 5 to 15 knots increasing to 15 to
20 knots. a chance of rain showers friday night. waves 1 to
3 feet. 
.saturday...southeast winds 15 to 20 knots becoming south.
showers likely. waves 2 to 4 feet. 

$$