fzus61 kbuf 191409
glflo 
expires:202603192100;;955599

open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt thu mar 19 2026

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...following the passage of a warm front, a 30.2 inch high 
will build across the great lakes through this evening. a 29.8 inch 
low will track from the upper great lakes to the lower great lakes 
friday, before a 30.0 inch high becomes briefly established 
saturday. another 29.6 inch wave of low pressure will cross the 
lower great lakes sunday with a strong cold front in its wake. a 
30.4 inch high is then forecast to build across the great lakes on 
monday.


loz063-064-192100-
lake ontario open waters from hamlin beach to mexico bay-
1009 am edt thu mar 19 2026

.rest of today...southwest winds 5 to 15 knots becoming west. a
chance of sprinkles and flurries, then a chance of sprinkles
late. waves 1 to 3 feet. 
.tonight...west winds 10 knots or less becoming southwest. waves
2 feet or less. 
.friday...southeast winds 5 to 15 knots becoming west. rain
showers with snow showers likely in the morning, then rain
showers in the afternoon. waves 1 to 2 feet building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.friday night...north winds 10 to 15 knots becoming northwest.
rain showers in the evening, then a chance of rain showers
overnight. waves 1 to 2 feet. 
.saturday...northwest winds 10 to 15 knots becoming northeast. a
chance of rain showers saturday night. waves 1 to 3 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
25 knots. rain and snow showers likely. waves 1 to 3 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 
.monday...north winds 15 to 25 knots becoming northwest. a chance
of snow showers during the day. waves 5 to 8 feet subsiding to
3 to 5 feet. waves occasionally around 10 feet. 

$$

fzus61 kbuf 191409
glflo 
expires:202603192100;;955600

open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt thu mar 19 2026

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...following the passage of a warm front, a 30.2 inch high 
will build across the great lakes through this evening. a 29.8 inch 
low will track from the upper great lakes to the lower great lakes 
friday, before a 30.0 inch high becomes briefly established 
saturday. another 29.6 inch wave of low pressure will cross the 
lower great lakes sunday with a strong cold front in its wake. a 
30.4 inch high is then forecast to build across the great lakes on 
monday.


loz065-192100-
lake ontario open waters from mexico bay to the saint lawrence
river-
1009 am edt thu mar 19 2026

.rest of today...south winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of snow showers late this morning, then
a chance of flurries and sprinkles this afternoon. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 10 knots or less becoming south. waves
2 feet or less. 
.friday...southeast winds 5 to 15 knots becoming north. snow
showers likely in the morning, then rain showers in the
afternoon. waves 1 foot or less building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.friday night...north winds 5 to 10 knots. rain showers in the
evening, then a chance of snow showers overnight. waves 1 foot or
less. 
.saturday...northwest winds 10 to 15 knots becoming north. a
chance of rain and snow showers saturday night. waves 1 to
3 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
25 knots. rain and snow showers likely. waves 2 feet or less
building to 3 to 5 feet. 
.monday...north winds 15 to 25 knots. a chance of snow showers
during the day. waves 3 to 5 feet subsiding to 1 to 3 feet. 

$$