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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est wed dec 24 2025

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 30.3 inch surface high draped across the lower great lakes will 
slide southeast and off the mid-atlantic coast tonight. meanwhile a 
weak surface low will slide from southern quebec to new england 
later tonight and christmas day, with its trailing cold front 
crossing the lake christmas morning. following the frontal passage, 
a strong 30.6 inch high over ontario will build across the lake 
christmas night. the high will then drift into quebec friday while a 
compact 29.7 inch low slides across ohio and pennsylvania, with the 
high then building back across the lake saturday. complex low 
pressure averaging 29.6 inches will then cross the lower great lakes 
later sunday and sunday night, before moving to the canadian 
maritimes monday.


loz062-250400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est wed dec 24 2025

.tonight...west winds 5 to 10 knots. waves 2 feet or less. 
.thursday...west winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet. 
.thursday night...north winds 15 to 20 knots becoming east. waves
2 to 4 feet. 
.friday...east winds 15 to 25 knots increasing to 30 knots. a
chance of snow showers in the morning, then snow in the
afternoon. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.friday night...east winds to 30 knots diminishing to 15 to
20 knots. snow. waves 5 to 8 feet. waves occasionally around
10 feet. 
.saturday...east winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 1 to 2 feet. 
.sunday...east winds around 10 knots becoming southwest and
increasing to 30 knots. rain showers likely during the day, then
rain showers sunday night. waves 1 to 2 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 40 knots becoming northwest to 35 knots.
lake effect snow and rain showers during the day, then lake
effect snow showers monday night. waves 12 to 16 feet building to
13 to 18 feet, then subsiding to 11 to 15 feet. waves
occasionally around 23 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est wed dec 24 2025

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 30.3 inch surface high draped across the lower great lakes will 
slide southeast and off the mid-atlantic coast tonight. meanwhile a 
weak surface low will slide from southern quebec to new england 
later tonight and christmas day, with its trailing cold front 
crossing the lake christmas morning. following the frontal passage, 
a strong 30.6 inch high over ontario will build across the lake 
christmas night. the high will then drift into quebec friday while a 
compact 29.7 inch low slides across ohio and pennsylvania, with the 
high then building back across the lake saturday. complex low 
pressure averaging 29.6 inches will then cross the lower great lakes 
later sunday and sunday night, before moving to the canadian 
maritimes monday.


loz063-250400-
lake ontario open waters from hamlin beach to sodus bay-
402 pm est wed dec 24 2025

.tonight...west winds 5 to 15 knots becoming southwest. waves
1 to 2 feet. 
.thursday...west winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.thursday night...north winds 15 to 20 knots becoming northeast
10 to 15 knots. waves 3 to 5 feet. 
.friday...east winds 15 to 25 knots. snow likely in the
afternoon. waves 3 to 6 feet. 
.friday night...east winds 15 to 20 knots. snow. waves 3 to
6 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 2 feet. 
.sunday...southeast winds 10 to 15 knots becoming southwest and
increasing to 30 knots. rain showers likely during the day, then
rain showers sunday night. waves 1 to 3 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 45 knots becoming northwest to 40 knots.
lake effect snow and rain showers during the day, then lake
effect snow showers monday night. waves 13 to 17 feet building to
15 to 20 feet. waves occasionally around 26 feet. 

$$

fzus61 kbuf 242102
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est wed dec 24 2025

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 30.3 inch surface high draped across the lower great lakes will 
slide southeast and off the mid-atlantic coast tonight. meanwhile a 
weak surface low will slide from southern quebec to new england 
later tonight and christmas day, with its trailing cold front 
crossing the lake christmas morning. following the frontal passage, 
a strong 30.6 inch high over ontario will build across the lake 
christmas night. the high will then drift into quebec friday while a 
compact 29.7 inch low slides across ohio and pennsylvania, with the 
high then building back across the lake saturday. complex low 
pressure averaging 29.6 inches will then cross the lower great lakes 
later sunday and sunday night, before moving to the canadian 
maritimes monday.


loz064-065-250400-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 pm est wed dec 24 2025

.tonight...southwest winds 5 to 15 knots. waves 1 to 3 feet. 
.thursday...west winds 10 to 15 knots becoming north and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 3 to
6 feet. 
.thursday night...north winds 15 to 25 knots becoming northeast
and diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.friday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. snow likely in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet. 
.friday night...east winds 15 to 20 knots. snow. waves 2 to
4 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of snow showers during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots becoming south and
increasing to 30 knots. rain showers likely during the day, then
rain showers sunday night. waves 1 to 3 feet building to 6 to
9 feet. waves occasionally around 11 feet. 
.monday...west gales to 40 knots becoming northwest. lake effect
snow and rain showers during the day, then lake effect snow
showers monday night. waves 13 to 17 feet building to 16 to
21 feet, then subsiding to 15 to 19 feet. waves occasionally
around 27 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 pm est wed dec 24 2025


slz022-250400-
saint lawrence river from cape vincent to ogdensburg-
402 pm est wed dec 24 2025

.tonight...light and variable winds becoming southwest 5 to
10 knots. a chance of snow showers after midnight. 
.thursday...west winds 10 knots or less becoming north 10 to
15 knots. a chance of snow showers early. 
.thursday night...north winds 5 to 10 knots becoming northeast.
mainly clear in the evening, then becoming partly cloudy. 
.friday...northeast winds 5 to 10 knots. a chance of snow showers
in the afternoon. 
.friday night...northeast winds 5 to 10 knots. snow likely in the
evening, then a chance of snow showers overnight. 
.saturday...northeast winds 10 knots or less. mostly cloudy. 
.sunday...east winds 10 knots or less becoming south 10 to
15 knots. a chance of freezing rain during the day, then freezing
rain and snow showers sunday night. 
.monday...southwest winds 15 to 20 knots becoming west. lake
effect snow showers and freezing lake effect rain during the day,
then lake effect snow showers monday night. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
305 pm est wed dec 24 2025

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 30.00 inches will linger tonight, followed by a
ridge averaging 30.20 on thursday. low pressure 29.80 inches will
move east through the ohio valley friday into friday night. a 
ridge averaging 30.10 inches will briefly build across the area on
saturday. strong low pressure 29.30 inches will move east through
the upper great lakes late sunday into monday, extending a cold
front east across the area.


lez061-167>169-250315-
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-
305 pm est wed dec 24 2025

.tonight...south winds 10 knots or less becoming southwest. waves
1 foot or less. 
.thursday...west winds 5 to 15 knots becoming north. waves 1 to
3 feet. 
.thursday night...northeast winds 15 to 20 knots becoming east.
waves 2 to 4 feet building to 3 to 5 feet. 
.friday...east winds 15 to 20 knots. rain with snow likely. waves
3 to 5 feet subsiding to 2 to 4 feet. 
.friday night...east winds 5 to 15 knots becoming northeast. a
chance of rain and freezing rain in the evening. waves 1 to
3 feet. 
.saturday...northeast winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 10 to 15 knots becoming west and
increasing to 35 knot gales. rain during the day, then rain with
snow likely sunday night. waves 2 feet or less building to 8 to
11 feet. waves occasionally around 14 feet. 
.monday...west gales to 40 knots becoming northwest and
diminishing to 30 knots. snow likely during the day, then a
chance of snow monday night. waves 10 to 14 feet building to
11 to 16 feet, then subsiding to 9 to 12 feet. waves occasionally
around 20 feet. 

$$