fzus61 kbuf 022010
glflo 
expires:202604030300;;722899

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt thu apr 2 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 move across the upper great lakes 
tonight and to southern quebec friday afternoon, while lifting a 
warm front northward across the lake tonight, followed by a weak 
trailing cold front friday afternoon. a 29.4 inch surface low will 
track through the central great lakes saturday, then into quebec 
saturday night and sunday, while dragging a strong cold front across 
the lake saturday night, with a secondary cold front then following 
sunday night and monday. a 30.5 inch high will then build across the 
great lakes tuesday and tuesday night, before sliding east and off 
the new england coast wednesday.


loz062-030300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt thu apr 2 2026

.tonight...east winds 15 to 25 knots becoming south. a chance of
rain showers early, then a chance of rain showers and
thunderstorms. rain showers likely late. waves 4 to 7 feet
subsiding to 3 to 5 feet. waves occasionally around 9 feet. 
.friday...southwest winds 15 to 25 knots becoming west. showers
likely early. waves 3 to 6 feet. 
.friday night...west winds 15 to 20 knots becoming northeast 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...east winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain showers in the morning, then rain
showers in the afternoon. waves 1 to 2 feet building to 3 to
5 feet. 
.saturday night...east winds 10 to 15 knots becoming southwest
15 to 20 knots. showers. waves 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. rain showers during the day.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.monday...west winds 15 to 20 knots becoming northwest. a chance
of snow showers monday night. waves 4 to 7 feet subsiding to 1 to
3 feet. waves occasionally around 9 feet. 
.tuesday...north winds 15 to 20 knots. a chance of snow showers
during the day. waves 3 to 5 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 022010
glflo 
expires:202604030300;;722900

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt thu apr 2 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 move across the upper great lakes 
tonight and to southern quebec friday afternoon, while lifting a 
warm front northward across the lake tonight, followed by a weak 
trailing cold front friday afternoon. a 29.4 inch surface low will 
track through the central great lakes saturday, then into quebec 
saturday night and sunday, while dragging a strong cold front across 
the lake saturday night, with a secondary cold front then following 
sunday night and monday. a 30.5 inch high will then build across the 
great lakes tuesday and tuesday night, before sliding east and off 
the new england coast wednesday.


loz063>065-030300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
409 pm edt thu apr 2 2026

.tonight...east winds 15 to 20 knots becoming south and
increasing to 30 knots. a chance of showers early, then a chance
of showers and thunderstorms late this evening. showers likely
with a chance of thunderstorms after midnight. waves 3 to 6 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 
.friday...south winds to 30 knots becoming southwest and
diminishing to 15 to 20 knots. showers likely with a chance of
thunderstorms early, then a chance of showers late in the
morning. waves 5 to 8 feet subsiding to 3 to 6 feet. waves
occasionally around 10 feet. 
.friday night...west winds 15 to 20 knots becoming north 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.saturday...northeast winds 10 to 15 knots becoming east. a
chance of rain showers in the morning, then rain showers likely
in the afternoon. waves 1 to 3 feet. 
.saturday night...southeast winds 15 to 20 knots becoming
southwest and increasing to 30 knots. showers with a chance of
thunderstorms in the evening, then showers overnight. waves 1 to
3 feet building to 3 to 6 feet. 
.sunday...west winds 15 to 20 knots increasing to 30 knots. rain
showers during the day, then a chance of snow showers sunday
night. waves 5 to 8 feet building to 7 to 10 feet. waves
occasionally around 13 feet. 
.monday...west winds 15 to 25 knots becoming northwest 15 to
20 knots. a chance of snow showers. waves 6 to 9 feet subsiding
to 2 to 4 feet. waves occasionally around 11 feet. 
.tuesday...north winds 15 to 20 knots. a chance of snow showers
during the day. waves 3 to 5 feet subsiding to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
410 pm edt thu apr 2 2026


slz022-024-030300-
saint lawrence river from cape vincent to saint regis
410 pm edt thu apr 2 2026

.tonight...east winds 5 to 15 knots becoming south 15 to
20 knots. rain showers. 
.friday...south winds 15 to 20 knots becoming southwest. showers
early, then showers likely late in the morning. a chance of
showers early in the afternoon. 
.friday night...west winds 15 to 20 knots becoming north and
diminishing to less than 10 knots overnight. partly to mostly
cloudy. 
.saturday...northeast winds 5 to 10 knots. rain showers likely in
the afternoon. 
.saturday night...east winds 5 to 15 knots becoming south 15 to
20 knots. showers.
.sunday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. rain showers during the day, then a chance of snow
showers sunday night. 
.monday...west winds 5 to 10 knots becoming northwest. a chance
of snow showers during the day. 
.tuesday...north winds 10 knots or less becoming northwest.
mostly cloudy, then clearing. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
356 pm edt thu apr 2 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 warm front will settle back south as a stationary front south of 
the lake friday. the front will lift north again on saturday ahead
of low pressure deepening to 29.60 inches as it tracks through 
the upper great lakes. this low will extend a cold front east 
across lake erie saturday night, followed by weak high pressure 
30.20 inches on monday.


lez061-167>169-030215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
356 pm edt thu apr 2 2026

.tonight...east winds 10 to 15 knots becoming south 15 to
20 knots. a chance of showers with a slight chance of
thunderstorms early, then a chance of showers and thunderstorms
late this evening. a chance of showers with a slight chance of
thunderstorms after midnight. waves 1 to 3 feet building to 3 to
5 feet. 
.friday...south winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers with a slight chance of
thunderstorms early. a slight chance of showers in the afternoon.
waves 3 to 6 feet subsiding to 2 to 4 feet. 
.friday night...west winds 10 knots or less becoming northeast
10 to 15 knots. a chance of rain showers in the evening, then
rain showers likely overnight. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.saturday...east winds 10 to 15 knots becoming south. rain
showers. waves 1 to 3 feet. 
.saturday night...south winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 2 to 4 feet building to 3 to 5 feet. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.monday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain and snow showers monday night. waves
1 to 3 feet building to 2 to 4 feet. 
.tuesday...northwest winds 15 to 20 knots becoming northeast 5 to
15 knots. waves 2 to 4 feet subsiding to 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$