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open lake forecast for lake ontario
national weather service buffalo ny
402 am est fri nov 28 2025

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 29.4 inch surface low over western quebec this morning 
will slowly track to central and eastern quebec today. meanwhile, a 
30.5 inch surface high will build south into the mid-mississippi 
valley, then to the ohio valley and lower great lakes saturday. 
another surface low will cut northeastward through the central great 
lakes sunday, slowly deepening from 29.6 inches sunday morning to 
29.4 inches sunday night over western quebec. a cold front from this 
low will cross the lake late sunday night.  a 30.4 inch surface high 
centered over the central plains will then build east across the 
great lakes monday, sliding quickly to new england on tuesday.


loz063-281600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est fri nov 28 2025

...gale warning in effect through this evening...

.today...west winds to 30 knots increasing to 35 knot gales. lake
effect snow showers through early afternoon, then a chance of
snow showers late. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tonight...northwest winds to 30 knots. lake effect snow showers
likely through the early overnight, then a chance of lake effect
snow showers late. waves 10 to 13 feet subsiding to 6 to 9 feet.
waves occasionally around 16 feet. 
.saturday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of snow showers. waves 4 to 7 feet subsiding
to 1 to 3 feet. waves occasionally around 9 feet. 
.saturday night...southwest winds less than 10 knots becoming
southeast and increasing to 15 to 25 knots overnight. a chance of
snow showers in the evening, then snow showers overnight. waves
1 to 3 feet building to 3 to 6 feet. 
.sunday...south winds to 30 knots becoming west. rain and snow
showers. waves 5 to 9 feet building to 9 to 12 feet. waves
occasionally around 15 feet. 
.monday...northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. a chance of snow showers. waves
7 to 10 feet subsiding to 1 to 2 feet. waves occasionally around
13 feet. 
.tuesday...south winds 10 to 15 knots becoming northwest. a
chance of snow showers. waves 1 to 3 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est fri nov 28 2025

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 29.4 inch surface low over western quebec this morning 
will slowly track to central and eastern quebec today. meanwhile, a 
30.5 inch surface high will build south into the mid-mississippi 
valley, then to the ohio valley and lower great lakes saturday. 
another surface low will cut northeastward through the central great 
lakes sunday, slowly deepening from 29.6 inches sunday morning to 
29.4 inches sunday night over western quebec. a cold front from this 
low will cross the lake late sunday night.  a 30.4 inch surface high 
centered over the central plains will then build east across the 
great lakes monday, sliding quickly to new england on tuesday.


loz064-065-281600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est fri nov 28 2025

...gale warning in effect through this evening...

.today...west winds to 30 knots increasing to 35 knot gales. a
chance of snow showers through early afternoon. waves 10 to
14 feet. waves occasionally around 18 feet. 
.tonight...northwest winds to 30 knots. a chance of snow showers.
waves 10 to 14 feet subsiding to 6 to 10 feet. waves occasionally
around 18 feet. 
.saturday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of snow showers. waves 4 to 7 feet subsiding
to 1 to 3 feet. waves occasionally around 9 feet. 
.saturday night...west winds 10 knots or less becoming southeast
and increasing to 15 to 25 knots overnight. snow showers
overnight. waves 1 to 3 feet building to 3 to 5 feet. 
.sunday...south gales to 40 knots becoming southwest to 35 knots.
rain and snow showers. waves 6 to 9 feet building to 9 to
13 feet. waves occasionally around 16 feet. 
.monday...northwest winds to 30 knots becoming south and
diminishing to 5 to 15 knots. snow showers likely during the day,
then a chance of snow showers monday night. waves 7 to 10 feet
subsiding to 1 to 2 feet. waves occasionally around 13 feet. 
.tuesday...south winds 15 to 20 knots becoming northwest 10 to
15 knots. snow showers likely during the day, then a chance of
snow showers tuesday night. waves 1 to 3 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est fri nov 28 2025


slz022-281600-
saint lawrence river from cape vincent to ogdensburg-
402 am est fri nov 28 2025

.today...west winds 15 to 20 knots. a chance of snow showers
through early afternoon. 
.tonight...west winds 15 to 20 knots diminishing to 10 to
15 knots. mostly cloudy in the evening, then becoming partly
cloudy. 
.saturday...west winds 10 knots or less becoming southwest.
sunny.
.saturday night...light and variable winds becoming southeast
5 to 10 knots. snow showers overnight. 
.sunday...south winds 10 to 15 knots becoming west. snow and rain
showers. 
.monday...northwest winds 10 knots or less becoming southeast. a
chance of snow showers. 
.tuesday...southeast winds 10 knots or less becoming northwest. a
chance of snow showers. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est fri nov 28 2025


slz024-281600-
saint lawrence river from ogdensburg to saint regis-
402 am est fri nov 28 2025

.today...west winds 15 to 20 knots. a chance of snow showers. 
.tonight...west winds 15 to 20 knots. mostly cloudy. 
.saturday...west winds 5 to 15 knots diminishing to less than
10 knots. mostly sunny. 
.saturday night...light and variable winds. snow showers likely
overnight. 
.sunday...southeast winds 5 to 15 knots becoming west 15 to
20 knots. snow and rain showers. 
.monday...west winds 5 to 15 knots becoming southeast less than
10 knots. a chance of snow showers during the day. 
.tuesday...southeast winds less than 10 knots becoming northwest.
a chance of snow showers. 

$$