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open lake forecast for lake ontario
national weather service buffalo ny
1008 pm edt tue mar 10 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 29.6 inch low will ripple along a frontal boundary 
wednesday, with this wave passing just to the west of the lake 
wednesday afternoon. this low will deepen to 29.4 inches as it moves 
across southern quebec thursday. a 30.2 inch high will move across 
the ohio valley and mid-atlantic region thursday night through 
friday. a 29.6 inch surface low will pass across the lake friday 
night with a cold front, then shifting east of the lake saturday. a 
30.3 inch surface high will ridge across the lake saturday night, 
and move east of the lake sunday. meanwhile, a 29.5 inch surface low 
over the mid mississippi valley sunday morning will track 
northeastward and deepen to 28.9 inches just to the west of the lake 
monday morning.


loz062-110900-
lake ontario open waters from the niagara river to hamlin beach-
1009 pm edt tue mar 10 2026

...gale watch in effect from wednesday evening through thursday
morning...

.overnight...northeast winds 15 to 25 knots becoming east.
a chance of rain showers, then rain showers likely with a chance
of thunderstorms late. waves 3 to 6 feet. 
.wednesday...east winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. rain showers with a chance of
thunderstorms. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.wednesday night...southwest winds 15 to 20 knots becoming west
and increasing to 35 knot gales overnight. rain showers in the
evening, then a chance of rain and snow showers overnight. waves
2 to 4 feet building to 10 to 14 feet. waves occasionally around
18 feet. 
.thursday...west winds to 30 knots. a chance of snow showers in
the morning. waves 9 to 12 feet subsiding to 5 to 8 feet. waves
occasionally around 15 feet. 
.thursday night...west winds 15 to 20 knots becoming southwest
10 to 15 knots. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.friday...southeast winds to 30 knots becoming west and
increasing to 35 knot gales. rain and snow during the day, then
rain with a chance of snow showers friday night. waves 3 to
5 feet building to 10 to 15 feet. waves occasionally around
19 feet. 
.saturday...west winds to 30 knots becoming east and diminishing
to 15 to 20 knots. a chance of snow showers saturday night. waves
10 to 13 feet subsiding to 2 to 4 feet. waves occasionally around
16 feet. 
.sunday...southeast gales to 35 knots becoming southwest and
diminishing to 30 knots. rain showers with snow showers likely.
waves 4 to 7 feet building to 9 to 12 feet. waves occasionally
around 15 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 110209
glflo 
expires:202603110900;;985686

open lake forecast for lake ontario
national weather service buffalo ny
1008 pm edt tue mar 10 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 29.6 inch low will ripple along a frontal boundary 
wednesday, with this wave passing just to the west of the lake 
wednesday afternoon. this low will deepen to 29.4 inches as it moves 
across southern quebec thursday. a 30.2 inch high will move across 
the ohio valley and mid-atlantic region thursday night through 
friday. a 29.6 inch surface low will pass across the lake friday 
night with a cold front, then shifting east of the lake saturday. a 
30.3 inch surface high will ridge across the lake saturday night, 
and move east of the lake sunday. meanwhile, a 29.5 inch surface low 
over the mid mississippi valley sunday morning will track 
northeastward and deepen to 28.9 inches just to the west of the lake 
monday morning.


loz063>065-110900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1009 pm edt tue mar 10 2026

...gale watch in effect from wednesday evening through thursday
morning...

.overnight...northeast winds 15 to 25 knots. a chance of
rain showers. waves 3 to 6 feet. 
.wednesday...east winds 15 to 20 knots becoming south. rain
showers with a chance of thunderstorms. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.wednesday night...south winds 15 to 20 knots becoming west and
increasing to 35 knot gales overnight. rain showers with a chance
of thunderstorms in the evening, then rain showers with snow
showers likely overnight. waves 1 to 3 feet building to 10 to
15 feet. waves occasionally around 19 feet. 
.thursday...west winds to 30 knots. snow showers likely in the
morning. waves 10 to 15 feet subsiding to 9 to 12 feet. waves
occasionally around 19 feet. 
.thursday night...west winds to 30 knots diminishing to 10 to
15 knots overnight. waves 7 to 10 feet subsiding to 2 to 4 feet.
waves occasionally around 13 feet. 
.friday...south winds 15 to 25 knots becoming west and increasing
to 40 knot gales. rain with snow likely. waves 3 to 5 feet
building to 14 to 18 feet. waves occasionally around 23 feet. 
.saturday...west gales to 35 knots becoming east and diminishing
to 15 to 20 knots. a chance of snow showers saturday night. waves
14 to 18 feet subsiding to 2 to 4 feet. waves occasionally around
23 feet. 
.sunday...east winds 15 to 25 knots becoming south and increasing
to 40 knot gales. rain showers with snow showers likely. waves
4 to 7 feet building to 9 to 13 feet. waves occasionally around
16 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
955 pm edt tue mar 10 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 stationary front will settle south and stall across lake 
erie into tonight. low pressure of 29.40 inches will move
northeast across southern lake huron on wednesday, lifting a warm
front north followed by a cold sweeping east wednesday afternoon.
a ridge averaging 30.20 inches will build into the area on 
thursday, followed by a stronger low pressure system of 29.40 
inches moving east through the great lakes on friday. high 
pressure 30.10 inches returns saturday.


lez061-168-169-110830-
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-
955 pm edt tue mar 10 2026

.rest of tonight...east winds 10 knots or less. a chance of rain
showers with a slight chance of thunderstorms late this evening,
then a slight chance of rain showers and thunderstorms after
midnight. a chance of rain showers and thunderstorms late. waves
in ice free areas 1 foot or less. 
.wednesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers with a chance of thunderstorms in the morning,
then showers with a slight chance of thunderstorms in the
afternoon. waves 2 feet or less. 
.wednesday night...west winds 20 to 25 knots. rain showers with
snow showers likely in the evening, then snow and rain showers
likely overnight. waves 2 to 4 feet building to 3 to 6 feet. 
.thursday...west winds 15 to 25 knots. a chance of snow showers
in the morning. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.thursday night...west winds 5 to 15 knots becoming south. waves
2 feet or less. 
.friday...southwest gales to 35 knots becoming west. rain and
snow showers likely during the day. waves 2 to 4 feet building to
5 to 8 feet. waves occasionally around 10 feet. 
.saturday...west winds 15 to 25 knots becoming east and
diminishing to 5 to 15 knots. a chance of snow and rain saturday
night. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...east winds 15 to 25 knots becoming southwest to
30 knots. rain and snow. waves 1 to 3 feet building to 5 to
8 feet. waves occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

wave heights are for ice free areas.

$$