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open lake forecast for lake ontario
national weather service buffalo ny
1004 pm edt mon mar 16 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 29.1 inch surface low over central michigan this late 
morning will track northeastward west of the lake this 
afternoon, before pushing northeastward across quebec through 
tuesday. this low will sweep a strong cold front across the lake 
late this afternoon, with a 30.4 inch high building across the great 
lakes and ohio valley tuesday. 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.


loz062-170900-
lake ontario open waters from the niagara river to hamlin beach-
1004 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...

.overnight...southwest gales to 35 knots becoming west to
40 knots. snow, then a chance of snow showers late. waves 10 to
14 feet building to 12 to 16 feet. waves occasionally around
20 feet. 
.tuesday...west gales to 40 knots diminishing to 30 knots. lake
effect snow showers likely in the morning, then a chance of snow
showers in the afternoon. waves 12 to 16 feet subsiding to 10 to
14 feet. waves occasionally around 20 feet. 
.tuesday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. snow showers likely in the evening. waves 7 to 10 feet
subsiding to 2 to 4 feet. waves occasionally around 13 feet. 
.wednesday...west winds 10 to 15 knots becoming south. waves 1 to
3 feet. 
.wednesday night...south winds 10 to 15 knots. a chance of snow
showers in the evening, then a chance of snow and rain showers
overnight. waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming west. a
chance of rain showers during the day, then a chance of rain and
snow showers thursday night. waves 1 to 3 feet. 
.friday...west winds 10 to 15 knots becoming northeast 15 to
20 knots. a chance of rain and snow showers. waves 2 to 3 feet
building to 3 to 5 feet. 
.saturday...northeast winds 15 to 25 knots becoming west to
30 knots. a chance of rain and snow showers. waves 5 to 8 feet.
waves occasionally around 10 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1004 pm edt mon mar 16 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 29.1 inch surface low over central michigan this late 
morning will track northeastward west of the lake this 
afternoon, before pushing northeastward across quebec through 
tuesday. this low will sweep a strong cold front across the lake 
late this afternoon, with a 30.4 inch high building across the great 
lakes and ohio valley tuesday. 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>065-170900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1004 pm edt mon mar 16 2026

...gale warning in effect through tuesday evening...

.overnight...west winds to 30 knots becoming southwest and
increasing to 40 knot gales. snow, then a chance of snow showers
late. visibility one quarter mile or less at times late. waves
8 to 11 feet building to 13 to 17 feet. waves occasionally around
22 feet. 
.tuesday...west gales to 40 knots diminishing to 30 knots in the
afternoon. lake effect snow showers. visibility one quarter mile
or less at times in the morning. waves 15 to 20 feet subsiding to
12 to 16 feet. waves occasionally around 26 feet. 
.tuesday night...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. lake effect snow showers in the
evening, then a chance of lake effect snow showers overnight.
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. snow
showers likely. waves 2 to 4 feet subsiding to 1 foot or less. 
.wednesday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. waves 2 feet or less building to 2 to 4 feet. 
.thursday...south winds 15 to 20 knots becoming west 10 to
15 knots. a chance of rain showers during the day, then a chance
of rain and snow showers thursday night. waves 2 to 4 feet
building to 3 to 5 feet. 
.friday...west winds 15 to 25 knots becoming north. a chance of
rain and snow showers. waves 3 to 5 feet building to 3 to 6 feet.
.saturday...northeast winds to 30 knots becoming west. a chance
of rain and snow showers. waves 5 to 8 feet building to 6 to
9 feet. waves occasionally around 11 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
931 pm edt mon mar 16 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 29.90 inches lingers over lake erie tonight. on
tuesday through tuesday night, a ridge averaging 30.30 inches builds
from the upper midwest. the ridge begins to exit slowly eastward 
from the region wednesday through wednesday night and allows a 
warm front to sweep northward across lake erie. during thursday 
through saturday, the ridge should continue to exit, albeit 
generally southeastward, as a cold front approaches from the 
northwest. by friday and saturday, the front should waver in
vicinity of lake erie in response to weak frontal lows, averaging
29.70 inches, and moving generally eastward across the southern
great lakes region.


lez061-168-169-170830-
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-
931 pm edt mon mar 16 2026

...gale warning in effect until 8 am edt tuesday...

.rest of tonight...west gales to 35 knots increasing to 40 knots.
snow showers late this evening, then a chance of snow showers
after midnight. waves 11 to 16 feet. waves occasionally around
20 feet. 
.tuesday...west gales to 35 knots diminishing to 30 knots. a
chance of snow showers. waves 11 to 15 feet subsiding to 5 to
8 feet. waves occasionally around 19 feet. 
.tuesday night...west winds 15 to 20 knots diminishing to 10 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 5 to 15 knots. waves 2 feet or
less. 
.thursday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.friday...southwest winds 5 to 15 knots becoming north. a chance
of rain and snow during the day, then a chance of rain friday
night. waves 2 feet or less. 
.saturday...northeast winds 10 to 15 knots becoming west 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 

$$