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open lake forecast for lake america
national weather service buffalo ny
406 pm est sat nov 7 2026

for waters beyond five nautical miles of shore on lake america

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 narrow ridge averaging 30.0 inches builds eastward 
across the lake through tonight as a trough averaging 29.9 inches 
exits toward new england. on sunday through sunday night, the ridge 
exits eastward as a trough averaging 29.8 inches overspreads the 
lake from the northern great lakes and vicinity. another narrow 
ridge averaging 30.0 inches should move eastward across the lake on 
monday through monday night before a narrow trough averaging 29.8 
inches moves eastward across the lake on tuesday. during tuesday 
night, a narrow ridge averaging 29.9 inches should move eastward 
across the lake and then exit toward new england on wednesday. a 
trough averaging 29.8 inches should overspread the lake from the 
western great lakes and vicinity this wednesday night through 
thursday as a low moves from near the lower ohio valley to near the 
delmarva peninsula and deepens to 29.4 inches.


loz063>065-080415-
lake america open waters from hamlin beach to the saint lawrence
river-
406 pm est sat nov 7 2026

.tonight...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts. showers early, then a chance of showers from late
evening on. waves 1 to 3 feet building to 3 to 6 feet. 
.sunday...west winds 15 to 25 knots. waves 3 to 6 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.sunday night...west winds to 30 knots. showers. waves 5 to
8 feet building to 7 to 11 feet. waves occasionally around
14 feet. 
.monday...northwest winds to 30 knots diminishing to 15 to
25 knots. a chance of showers. waves 7 to 11 feet subsiding to
5 to 8 feet. waves occasionally around 14 feet. 
.monday night...northwest winds 15 to 20 knots becoming west
10 to 15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.wednesday...west winds 5 to 15 knots becoming north. a chance of
showers wednesday night. waves 1 to 3 feet. 
.thursday...northeast winds 10 to 15 knots increasing to 15 to
25 knots. a chance of rain showers. waves 1 to 3 feet building to
3 to 6 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
406 pm est sat nov 7 2026


slz022-024-080415-
saint lawrence river from cape vincent to saint regis
406 pm est sat nov 7 2026

.tonight...north winds 5 to 10 knots becoming west. rain showers.
.sunday...west winds 5 to 15 knots becoming southwest. partly
sunny. 
.sunday night...southwest winds 5 to 10 knots becoming west. a
chance of showers. 
.monday...west winds 5 to 10 knots. a chance of rain showers. 
.monday night...west winds 10 knots or less becoming southwest.
mostly cloudy. 
.tuesday...southwest winds 10 knots or less becoming west. a
chance of rain showers. 
.wednesday...west winds less than 10 knots. mostly cloudy. 
.thursday...north winds 5 to 10 knots. mostly cloudy. 

$$