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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sun jan 4 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 30.2 inch high will then slide from the western great 
lakes to the lower great lakes by early monday, before drifting off 
the east coast monday night. a weak 29.6 inch low will then cross 
the lower great lakes tuesday night before moving off the new 
england coast wednesday. a 30.1 inch high will then proceed to build 
from the ohio valley wednesday to the mid atlantic thursday.


loz062-050400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est sun jan 4 2026

.tonight...northwest winds 15 to 20 knots becoming south and
diminishing to 10 knots or less after midnight. a chance of snow
after midnight. snow likely late. waves 2 to 4 feet subsiding to
2 feet or less. 
.monday...southeast winds 5 to 10 knots. snow in the morning,
then a chance of snow in the afternoon. waves 1 foot or less. 
.monday night...southeast winds 5 to 10 knots. a chance of snow
in the evening. waves 1 foot or less. 
.tuesday...southeast winds 5 to 10 knots becoming east. rain
showers likely in the afternoon. waves 2 feet or less. 
.tuesday night...southeast winds 10 to 15 knots becoming west
15 to 20 knots. rain showers likely. waves 1 to 3 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of rain showers during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.thursday...southwest winds 5 to 15 knots. a chance of rain
showers thursday night. waves 1 to 2 feet. 
.friday...southwest winds 10 to 15 knots becoming east 15 to
20 knots. a chance of rain showers. waves 1 to 3 feet building to
2 to 4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est sun jan 4 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 30.2 inch high will then slide from the western great 
lakes to the lower great lakes by early monday, before drifting off 
the east coast monday night. a weak 29.6 inch low will then cross 
the lower great lakes tuesday night before moving off the new 
england coast wednesday. a 30.1 inch high will then proceed to build 
from the ohio valley wednesday to the mid atlantic thursday.


loz063>065-050400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm est sun jan 4 2026

.tonight...northwest winds 15 to 20 knots becoming east 5 to
15 knots. a chance of snow late. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.monday...southeast winds 10 to 15 knots. snow. waves 2 feet or
less. 
.monday night...southeast winds 5 to 10 knots. snow in the
evening. waves 2 feet or less. 
.tuesday...southeast winds 5 to 15 knots. a chance of rain
showers in the afternoon. waves 2 feet or less. 
.tuesday night...southeast winds 10 to 15 knots becoming west
15 to 20 knots. rain showers likely in the evening, then rain
showers and freezing rain likely overnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. rain showers likely, a chance of snow showers and
freezing rain likely during the day. waves 3 to 5 feet subsiding
to 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. a chance of rain showers thursday night. waves 1 to
3 feet building to 2 to 4 feet. 
.friday...south winds 15 to 20 knots becoming east. a chance of
rain showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 pm est sun jan 4 2026


slz022-024-050400-
saint lawrence river from cape vincent to saint regis
402 pm est sun jan 4 2026

.tonight...north winds less than 10 knots. partly cloudy through
the early overnight, then becoming mostly cloudy. 
.monday...light and variable winds. a chance of snow early, then
snow from late morning on. 
.monday night...northeast winds less than 10 knots. occasional
snow in the evening. 
.tuesday...northeast winds 10 knots or less. a chance of snow
showers in the afternoon. 
.tuesday night...east winds 5 to 10 knots becoming south. snow
showers and freezing rain likely. 
.wednesday...west winds 10 knots or less becoming southwest. snow
showers likely during the day. 
.thursday...southwest winds 10 knots or less becoming south. a
chance of rain showers thursday night. 
.friday...southwest winds 5 to 10 knots becoming east. a chance
of rain showers. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
239 pm est sun jan 4 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...
high pressure 30.20 inches will gradually exit east of the area
into monday as weak low pressure 29.80 inches moves east through
the upper great lakes. another low pressure 29.50 inches will move
east through the lower great lakes tuesday night into wednesday,
extending a cold front across the area. weak high pressure 30.00
inches will return by thursday.


lez061-168-169-050315-
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-
239 pm est sun jan 4 2026

.tonight...west winds 5 to 15 knots becoming south. a slight
chance of snow showers after midnight. a chance of snow showers
late. waves 1 to 2 feet. 
.monday...south winds 10 to 15 knots becoming southwest. a chance
of snow showers early, then a slight chance of snow showers late
in the morning. waves 1 to 3 feet. 
.monday night...southwest winds 5 to 10 knots becoming south.
waves 1 to 2 feet. 
.tuesday...south winds 5 to 15 knots. a chance of rain in the
morning, then rain in the afternoon. waves 1 to 2 feet. 
.tuesday night...southwest winds 10 to 15 knots becoming west
15 to 20 knots. a chance of rain in the evening. waves 1 to
3 feet building to 2 to 4 feet. 
.wednesday...west winds 5 to 15 knots becoming southwest. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...south winds 10 to 15 knots. a chance of rain during
the day, then rain likely thursday night. waves 1 to 3 feet. 
.friday...south winds 15 to 20 knots. rain likely during the day,
then a chance of rain friday night. waves 1 to 3 feet. 

$$