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open lake forecast for lake ontario
national weather service buffalo ny
947 pm edt wed apr 17 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 29.5 inch low will pass to the northwest of the 
lake overnight and thursday sending a cold front across the lake.
the next storm system will average 29.8 inches as it slowly 
crosses northern ontario and northern quebec friday and saturday 
sending a secondary cold front across the lake late friday. 
meanwhile expansive high pressure will move from the canadian 
rockies to the central plains through sunday and across the 
eastern great lakes monday.


loz063>065-180915-
lake ontario open waters from hamlin beach to the saint lawrence
river-
947 pm edt wed apr 17 2024

.overnight...east winds 15 to 25 knots becoming southeast.
showers with a chance of thunderstorms, then showers late. waves
3 to 6 feet. 
.thursday...south winds 15 to 20 knots diminishing to 10 to
15 knots. patchy fog in the morning. showers likely early, then a
chance of showers from late morning on. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday night...south winds 10 to 15 knots becoming southeast
15 to 20 knots. a chance of showers in the evening. waves 1 to
3 feet. 
.friday...southeast winds 15 to 25 knots becoming southwest.
showers. waves 3 to 6 feet. 
.friday night...southwest winds 15 to 20 knots becoming west.
showers in the evening. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.saturday...west winds 15 to 20 knots. a chance of rain showers.
waves 3 to 6 feet. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet. 
.monday...west winds 5 to 15 knots becoming south. waves 1 to
3 feet. 

winds and waves higher in and near thunderstorms.

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
947 pm edt wed apr 17 2024


slz022-024-180915-
saint lawrence river from cape vincent to saint regis
947 pm edt wed apr 17 2024

.rest of tonight...east winds 5 to 15 knots. a chance of showers
late this evening, then showers after midnight. 
.thursday...east winds 5 to 10 knots becoming south. showers
through early afternoon, then a chance of showers late. 
.thursday night...south winds 5 to 10 knots. a chance of showers.
.friday...south winds 5 to 15 knots increasing to 15 to 20 knots.
showers.
.friday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. showers in the evening, then a chance of showers
overnight. 
.saturday...southwest winds 10 to 15 knots becoming west. rain
showers likely. 
.sunday...west winds 5 to 15 knots becoming southwest. becoming
mainly clear. 
.monday...west winds 5 to 10 knots becoming south. mainly clear,
then becoming partly cloudy. 

$$