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open lake forecast for lake ontario
national weather service buffalo ny
446 pm edt sat mar 25 2023

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 deep 20.2 inch low will push northeast to quebec 
tonight while its powerful cold front will plow across the lake. 
the area of low pressure will exit across quebec on sunday...as a 
30.0 inch high moves across the ohio valley. weak low pressure of
29.8 inches over the ohio valley late sunday night will track 
across the mid atlantic region monday and monday night. an
expansive high of 30.4 inches will build across the mississippi 
valley on tuesday and stretch east to the lake for wednesday and
thursday.


loz063>065-260330-
lake ontario open waters from hamlin beach to the saint lawrence
river-
446 pm edt sat mar 25 2023

...gale warning in effect from 8 pm edt this evening through
sunday afternoon...

.tonight...south gales to 40 knots becoming southwest. rain
through the early overnight, then a chance of rain showers late.
waves 9 to 12 feet building to 14 to 18 feet. waves occasionally
around 23 feet. 
.sunday...west gales to 40 knots diminishing to 30 knots. a
chance of rain showers early. waves 15 to 20 feet subsiding to
11 to 15 feet. waves occasionally around 26 feet. 
.sunday night...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. waves 8 to 11 feet subsiding to
1 to 3 feet. waves occasionally around 14 feet. 
.monday...northwest winds 5 to 10 knots becoming northeast. a
chance of rain and snow showers in the afternoon. waves 2 feet or
less. 
.monday night...northeast winds 10 to 15 knots. a chance of rain
showers. waves 2 feet or less. 
.tuesday...northeast winds 10 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.wednesday...northwest winds 15 to 20 knots. a chance of snow 
showers wednesday night. waves building to 3 to 5 feet. 
.thursday...northwest winds 15 to 20 knots. a chance of snow 
showers. waves 2 to 4 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
441 pm edt sat mar 25 2023


slz022-024-260315-
saint lawrence river from cape vincent to saint regis
441 pm edt sat mar 25 2023

...small craft advisory in effect from 2 am edt sunday through
sunday afternoon...

.tonight...east winds 15 to 25 knots becoming southwest to 30 
knots. rain through the early overnight, then rain with snow 
likely late. 
.sunday...southwest winds 15 to 25 knots becoming west. rain and
snow likely early, then a chance of rain and snow showers. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. mostly cloudy. 
.monday...west winds 10 knots or less becoming north. partly to
mostly sunny. 
.monday night...north winds 5 to 10 knots. mostly cloudy. 
.tuesday...northeast winds 5 to 10 knots becoming northwest. a
chance of snow showers tuesday night. 
.wednesday...west winds 5 to 10 knots. a chance of snow showers. 
.thursday...northwest winds 5 to 10 knots. partly to mostly 
cloudy. 

$$