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open lake forecast for lake ontario
national weather service buffalo ny
1003 pm est sat mar 7 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...a 29.7 inch low will move across southern quebec with 
its trailing cold front crossing the lake tonight. a large 30.1 inch 
high will then move from the lower ohio valley to the mid atlantic 
region tomorrow and monday while ridging north across the lake. a 
28.9 inch low will move across james bay monday while pressure 
averages 30.0 inches across the lake tuesday. a cold front from this 
low will stall near the lake tuesday, lifting northward wednesday as 
a 29.5 wave of low pressure ripples along the front, with this wave 
passing just to the west of the lake wednesday night.


loz062-063-081000-
lake ontario open waters from the niagara river to sodus bay-
1003 pm est sat mar 7 2026

.rest of tonight...southwest winds 15 to 20 knots becoming west.
patchy fog. a chance of rain showers. waves 3 to 6 feet. 
.sunday...west winds 15 to 25 knots becoming southwest. waves
3 to 6 feet. 
.sunday night...southwest winds 15 to 25 knots. waves 3 to
6 feet. 
.monday...southwest winds 15 to 25 knots. waves 3 to 6 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
5 to 15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 5 to 10 knots becoming east and increasing
to 15 to 25 knots. rain showers tuesday night. waves 2 feet or
less building to 3 to 5 feet. 
.wednesday...southeast winds to 30 knots becoming west. rain
showers during the day, then rain showers with snow showers
likely wednesday night. waves 4 to 7 feet building to 7 to
10 feet. waves occasionally around 13 feet. 
.thursday...west gales to 35 knots diminishing to 30 knots. snow
and rain showers likely during the day. waves 10 to 15 feet
subsiding to 9 to 12 feet. waves occasionally around 19 feet. 

$$

fzus61 kbuf 080303
glflo 
expires:202603081000;;819574

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm est sat mar 7 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...a 29.7 inch low will move across southern quebec with 
its trailing cold front crossing the lake tonight. a large 30.1 inch 
high will then move from the lower ohio valley to the mid atlantic 
region tomorrow and monday while ridging north across the lake. a 
28.9 inch low will move across james bay monday while pressure 
averages 30.0 inches across the lake tuesday. a cold front from this 
low will stall near the lake tuesday, lifting northward wednesday as 
a 29.5 wave of low pressure ripples along the front, with this wave 
passing just to the west of the lake wednesday night.


loz064-065-081000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1003 pm est sat mar 7 2026

.rest of tonight...southwest winds 15 to 20 knots becoming west.
areas of fog. rain showers likely late this evening, then a
chance of rain showers after midnight. waves 3 to 6 feet. 
.sunday...west winds 15 to 20 knots becoming southwest. waves
3 to 6 feet subsiding to 2 to 4 feet. 
.sunday night...southwest winds 15 to 20 knots becoming south.
waves 3 to 6 feet subsiding to 2 to 4 feet. 
.monday...south winds 15 to 20 knots becoming southwest. waves
2 to 4 feet. 
.monday night...southwest winds 5 to 15 knots becoming south.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 5 to 10 knots becoming east and increasing
to 15 to 20 knots. rain showers likely tuesday night. waves 1 to
3 feet building to 3 to 5 feet. 
.wednesday...southeast winds to 30 knots becoming southwest. rain
showers during the day, then rain showers with snow showers
likely wednesday night. waves 3 to 5 feet building to 7 to
10 feet. waves occasionally around 13 feet. 
.thursday...west gales to 35 knots diminishing to 30 knots. snow
and rain showers likely during the day, then a chance of snow
showers thursday night. waves 10 to 15 feet building to 12 to
16 feet, then subsiding to 9 to 12 feet. waves occasionally
around 20 feet. 

$$