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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
347 am est sat dec 7 2024


slz022-024-071630-
saint lawrence river from cape vincent to saint regis
347 am est sat dec 7 2024

.today...west winds 10 knots or less becoming south. a chance of
snow showers early this afternoon. snow late. 
.tonight...southeast winds 10 to 15 knots becoming southwest
15 to 20 knots. snow in the evening, then snow and rain after
midnight. 
.sunday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. rain and snow in the morning, then a chance of rain and
snow showers in the afternoon. 
.sunday night...northwest winds 10 knots or less becoming
northeast. a chance of snow. 
.monday...northeast winds 5 to 15 knots becoming south. snow and
rain. 
.tuesday...south winds 5 to 15 knots diminishing to less than
10 knots. rain.
.wednesday...west winds 5 to 15 knots. rain during the day, then
snow showers wednesday night. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
346 am est sat dec 7 2024

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 30.4 inch high centered over the tennessee valley
will settle into the southeast states today and off the carolina 
coast sunday...while a 29.6 low over manitoba deepens to 29.3 
inches as it dives southeastward to the ottawa valley tonight... 
then fills to 29.6 inches as it departs into the canadian 
maritimes on sunday. the next 29.6 inch surface low centered over 
northern wisconsin monday will gradually fill in to 29.8 inches by
tuesday, supporting a warm front so slide across the lake. as 
this system moves east, a deepening coastal low around 29.5 inches
will move north along the east coast wednesday.


loz062-071630-
lake ontario open waters from the niagara river to hamlin beach-
346 am est sat dec 7 2024

...gale watch in effect from this evening through sunday
morning...

.today...west winds 15 to 25 knots becoming southwest to
30 knots. lake effect snow likely early, then a chance of snow
showers late this morning. snow this afternoon. waves 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet. 
.tonight...southwest gales to 35 knots becoming west. rain and
snow likely early, then a chance of rain showers from late
evening on. waves 7 to 10 feet building to 9 to 13 feet. waves
occasionally around 16 feet. 
.sunday...west gales to 35 knots diminishing to 15 to 20 knots. a
chance of showers in the morning. waves 10 to 13 feet subsiding
to 3 to 6 feet. waves occasionally around 16 feet. 
.sunday night...west winds 5 to 15 knots becoming southeast. a
chance of rain overnight. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.monday...east winds 15 to 20 knots becoming southwest 10 to
15 knots. rain. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots becoming west. a chance
of rain. waves 1 to 3 feet. 
.wednesday...west winds 10 to 15 knots increasing to 15 to
25 knots. rain likely during the day, then rain and snow showers
likely wednesday night. waves 2 to 4 feet building to 4 to
7 feet. waves occasionally around 9 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
346 am est sat dec 7 2024

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 30.4 inch high centered over the tennessee valley
will settle into the southeast states today and off the carolina 
coast sunday...while a 29.6 low over manitoba deepens to 29.3 
inches as it dives southeastward to the ottawa valley tonight... 
then fills to 29.6 inches as it departs into the canadian 
maritimes on sunday. the next 29.6 inch surface low centered over 
northern wisconsin monday will gradually fill in to 29.8 inches by
tuesday, supporting a warm front so slide across the lake. as 
this system moves east, a deepening coastal low around 29.5 inches
will move north along the east coast wednesday.


loz063>065-071630-
lake ontario open waters from hamlin beach to the saint lawrence
river-
346 am est sat dec 7 2024

...gale watch in effect from this evening through sunday
morning...

.today...west winds 15 to 25 knots becoming southwest. lake
effect snow. waves 7 to 10 feet subsiding to 3 to 6 feet. waves
occasionally around 13 feet. 
.tonight...southwest winds to 30 knots increasing to 35 knot
gales after midnight. snow and rain in the evening, then rain
after midnight. waves 5 to 8 feet building to 10 to 14 feet.
waves occasionally around 18 feet. 
.sunday...west gales to 35 knots diminishing to 15 to 20 knots in
the afternoon. rain in the morning, then a chance of showers in
the afternoon. waves 10 to 15 feet subsiding to 6 to 9 feet.
waves occasionally around 19 feet. 
.sunday night...west winds 5 to 15 knots becoming east. a chance
of rain. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.monday...east winds 15 to 20 knots becoming south. rain. waves
2 to 4 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. rain likely. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.wednesday...west winds 10 to 15 knots increasing to 15 to
25 knots. rain during the day, then rain and snow showers
wednesday night. waves 1 to 3 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
334 am est sat dec 7 2024

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 30.40 inches briefly builds into the ohio valley
this morning. low pressure 29.50 inches moves southeastward from 
the canadian prairies to lake superior by late today and then 
move eastward to the canadian maritimes by late sunday. a second
low pressure 29.50 inches approaches the western great lakes from
the northern great plains sunday night. this low will move slowly
eastward across the upper great lakes through tuesday and then 
generally northeast toward the mouth of the saint lawrence river 
by wednesday. a cold front trailing the low is expected to sweep 
eastward across lake erie tuesday through wednesday.


lez061-166>169-071530-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm 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-
334 am est sat dec 7 2024

...gale warning in effect from this afternoon through sunday
morning...

.today...west winds 15 to 20 knots becoming southwest and
increasing to 30 knots. a chance of snow showers through early
afternoon, then a chance of snow showers with a slight chance of
rain showers late. waves 5 to 8 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 
.tonight...southwest gales to 35 knots becoming west. waves 8 to
12 feet building to 10 to 14 feet. waves occasionally around
18 feet. 
.sunday...west winds to 30 knots diminishing to 15 to 25 knots.
waves 10 to 14 feet subsiding to 3 to 6 feet. waves occasionally
around 18 feet. 
.sunday night...southwest winds 5 to 15 knots becoming south.
showers likely overnight. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.monday...south winds 15 to 20 knots becoming southwest. showers
during the day. waves 2 to 4 feet. 
.tuesday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of rain showers during the day, then a chance
of rain and snow showers tuesday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots increasing to 30 knots.
snow showers during the day, then snow showers likely wednesday
night. waves 3 to 6 feet building to 5 to 7 feet. waves
occasionally around 9 feet. 

$$