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open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt sun mar 15 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 29.5 inch surface low over the mid-mississippi valley 
will track northeastward and deepen to 28.9 inches just to the west 
of the lake monday morning, before pushing northeastward across 
quebec through tuesday. this low will sweep a strong cold front 
across the lake monday 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.


loz062-152100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt sun mar 15 2026

...gale watch in effect from monday afternoon through tuesday
morning...

.rest of today...east winds to 30 knots. snow likely late this
morning. waves 5 to 8 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.tonight...southeast winds to 30 knots. a chance of showers late.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.monday...southeast winds to 30 knots becoming southwest and
increasing to 35 knot gales in the afternoon. rain showers. waves
4 to 7 feet building to 9 to 12 feet. waves occasionally around
15 feet. 
.monday night...southwest gales to 35 knots becoming west. rain
showers with a chance of snow showers in the evening, then a
chance of snow showers overnight. waves 10 to 15 feet. waves
occasionally around 19 feet. 
.tuesday...west gales to 35 knots diminishing to 15 to 20 knots.
a chance of snow showers. waves 10 to 15 feet subsiding to 4 to
7 feet. waves occasionally around 19 feet. 
.wednesday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. a chance of snow showers wednesday night. waves 1 to
3 feet. 
.thursday...south 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. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt sun mar 15 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 29.5 inch surface low over the mid-mississippi valley 
will track northeastward and deepen to 28.9 inches just to the west 
of the lake monday morning, before pushing northeastward across 
quebec through tuesday. this low will sweep a strong cold front 
across the lake monday 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.


loz063>065-152100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt sun mar 15 2026

...gale watch in effect from monday evening through tuesday
evening...

.rest of today...southeast winds 15 to 25 knots. snow likely late
this morning. waves 3 to 5 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.tonight...southeast winds to 30 knots increasing to 35 knot
gales. a chance of rain showers late. waves 5 to 8 feet building
to 7 to 11 feet. waves occasionally around 14 feet. 
.monday...southeast gales to 35 knots becoming southwest and
diminishing to 30 knots in the afternoon. rain showers likely in
the morning, then rain showers, snow showers with a chance of
thunderstorms in the afternoon. waves 6 to 10 feet. waves
occasionally around 13 feet. 
.monday night...west winds to 30 knots increasing to 40 knot
gales. snow showers, rain showers with a chance of thunderstorms
in the evening, then lake effect snow showers overnight. waves
9 to 13 feet building to 13 to 17 feet. waves occasionally around
22 feet. 
.tuesday...west gales to 40 knots diminishing to 15 to 25 knots.
lake effect snow showers. waves 13 to 18 feet subsiding to 6 to
9 feet. waves occasionally around 23 feet. 
.wednesday...west winds 10 to 15 knots becoming south 15 to
20 knots. waves 3 to 5 feet. 
.thursday...south winds 15 to 20 knots becoming southwest. a
chance of rain showers. waves 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
338 pm edt sun mar 15 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...
low pressure will deepen to 28.90 inches by monday morning as it 
lifts into the northern great lakes. a strong cold front will
sweep across lake erie early monday morning. a trough averaging 
29.80 inches will persist across the lake through early tuesday 
before a ridge averaging 30.30 inches builds from the upper 
midwest late tuesday and tuesday night. the ridge will exit slowly
eastward from the lake erie region wednesday through thursday as 
another cold front crosses the lake.


lez061-168-169-160215-
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-
338 pm edt sun mar 15 2026

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

.tonight...south winds to 30 knots. waves 3 to 6 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.monday...south winds to 30 knots becoming southwest and
increasing to 35 knot gales in the afternoon. a chance of rain
showers through early afternoon, then a chance of snow and rain
showers late. waves 3 to 6 feet building to 10 to 14 feet. waves
occasionally around 18 feet. 
.monday night...west winds to 30 knots increasing to 35 knot
gales. snow showers likely. waves 10 to 14 feet. waves
occasionally around 18 feet. 
.tuesday...west winds to 30 knots diminishing to 15 to 25 knots.
a chance of snow showers. waves 9 to 12 feet subsiding to 5 to
8 feet. waves occasionally around 15 feet. 
.tuesday night...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.wednesday...southwest winds 5 to 15 knots becoming south. waves
1 to 3 feet. 
.thursday...south winds 5 to 15 knots becoming west less than
10 knots. a chance of rain during the day. waves 2 feet or less. 
.friday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. a chance of rain. waves 2 feet or less building to 3 to
5 feet. 

winds and waves higher in and near thunderstorms.

$$