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open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt tue mar 17 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 30.4 inch surface high centered over the lower ohio 
valley this late morning will ridge northward, across the lake 
tonight. the high will then shift east of the lake wednesday and 
reach the east coast by wednesday evening. a 30.2 inch high will 
move into the great lakes region thursday. a 29.8 inch low will move 
from james bay to the canadian maritimes friday. this may result in 
a cold front crossing the lake through friday.


loz062-172100-
lake ontario open waters from the niagara river to hamlin beach-
1009 am edt tue mar 17 2026

...gale warning in effect until 11 am edt this morning...

.rest of today...west gales to 35 knots. snow showers likely late
this morning, then a chance of snow showers this afternoon. waves
10 to 15 feet subsiding to 8 to 11 feet. waves occasionally
around 19 feet. 
.tonight...west winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of snow showers early. waves 5 to 9 feet
subsiding to 3 to 6 feet. waves occasionally around 11 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south. waves
1 to 3 feet. 
.wednesday night...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of snow showers overnight. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west. a
chance of rain and snow showers during the day, then a chance of
rain showers thursday night. waves 1 to 3 feet. 
.friday...southwest winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of rain and snow showers. waves 1 to 2 feet
building to 2 to 4 feet. 
.saturday...northeast winds 15 to 25 knots becoming north. a
chance of rain and snow showers. waves 3 to 5 feet building to
5 to 8 feet. waves occasionally around 10 feet. 

$$

fzus61 kbuf 171410
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open lake forecast for lake ontario
national weather service buffalo ny
1009 am edt tue mar 17 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 30.4 inch surface high centered over the lower ohio 
valley this late morning will ridge northward, across the lake 
tonight. the high will then shift east of the lake wednesday and 
reach the east coast by wednesday evening. a 30.2 inch high will 
move into the great lakes region thursday. a 29.8 inch low will move 
from james bay to the canadian maritimes friday. this may result in 
a cold front crossing the lake through friday.


loz063>065-172100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1009 am edt tue mar 17 2026

...gale warning in effect until 7 pm edt this evening...

.rest of today...west gales to 40 knots diminishing to 35 knots.
lake effect snow showers. waves 14 to 19 feet subsiding to 12 to
16 feet. waves occasionally around 24 feet. 
.tonight...west winds to 30 knots becoming northwest 15 to
25 knots. lake effect snow showers in the evening, then a chance
of lake effect snow showers after midnight. waves 10 to 14 feet
subsiding to 4 to 7 feet. waves occasionally around 18 feet. 
.wednesday...northwest winds 5 to 10 knots becoming south. lake
effect snow showers likely in the morning, then a chance of snow
showers in the afternoon. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.wednesday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots. waves 2 feet or less building to 3 to 5 feet. 
.thursday...south winds 15 to 20 knots becoming west 10 to
15 knots. a chance of snow showers during the day, then a chance
of rain showers thursday night. waves 3 to 5 feet subsiding to
2 feet or less. 
.friday...southwest winds around 10 knots becoming north and
increasing to 15 to 20 knots. a chance of rain and snow showers.
waves 2 feet or less building to 3 to 5 feet. 
.saturday...northeast winds 15 to 25 knots becoming south to
30 knots. a chance of rain and snow showers. waves 3 to 6 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
1053 am edt tue mar 17 2026

for waters beyond five nautical miles of shore on lake erie

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 trough averaging 29.50 inches will linger over the area today 
before high pressure 30.40 inches pushes north across the great 
lakes region tonight. this high will drift east on wednesday, 
allowing for a warm front to lift north late wednesday. high 
pressure 30.10 inches will persist for the remainder of the week 
before a weak low pressure 29.80 inches moves east through the 
region this weekend.


lez061-168-169-172015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
1053 am edt tue mar 17 2026

.this afternoon...west winds to 30 knots. a chance of snow
showers. waves 7 to 10 feet subsiding to 5 to 8 feet. waves
occasionally around 13 feet. 
.tonight...west winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of snow showers. waves 3 to 6 feet subsiding
to 2 to 4 feet. 
.wednesday...southwest winds 5 to 15 knots becoming south. a
chance of snow showers in the morning. waves 1 to 3 feet. 
.wednesday night...south winds 10 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.thursday...southwest winds 5 to 10 knots. a chance of rain
during the day. waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots becoming north. a chance
of rain. waves 1 to 3 feet. 
.saturday...northeast winds 10 to 15 knots becoming southwest.
waves 1 to 3 feet building to 3 to 5 feet. 

$$