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fzus61 kbuf 272003
glfsl 
expires:202606280300;;011746

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt sat jun 27 2026


slz022-024-280300-
saint lawrence river from cape vincent to saint regis
403 pm edt sat jun 27 2026

.tonight...light and variable winds. areas of fog late. 
.sunday...light and variable winds. areas of fog early. 
.sunday night...north winds less than 10 knots. mainly clear. 
.monday...light and variable winds. mostly sunny. 
.monday night...light and variable winds. mostly cloudy. 
.tuesday...south winds 5 to 10 knots becoming southwest. showers
likely with a chance of thunderstorms during the day, then a
chance of showers and thunderstorms tuesday night. 
.wednesday...southwest winds 10 knots or less. a chance of
showers and thunderstorms. 
.thursday...southwest winds 10 knots or less. a chance of showers
and thunderstorms. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 272002
glflo 
expires:202606280300;;011723

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sat jun 27 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 weak 29.9 inch low will move east across the canadian 
maritimes throughout the day today. meanwhile, a 30.1 inch high will 
build into the upper great lakes today through early sunday before 
drifting east to quebec and new england by monday, then east of the 
new england coast by tuesday. another broad 30.1 inch high will 
build into the ohio valley and mid atlantic by wednesday, where it 
will remain through at least thursday. .


loz063>065-280300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sat jun 27 2026

.tonight...northeast winds less than 10 knots becoming north.
waves 1 foot or less. 
.sunday...north winds 10 knots or less. waves 1 foot or less. 
.sunday night...northwest winds 5 to 10 knots becoming light and
variable. waves 1 foot or less. 
.monday...light and variable winds becoming northeast 5 to
10 knots. waves 1 foot or less. 
.monday night...east winds 5 to 10 knots becoming south. a chance
of showers overnight. waves 1 foot or less. 
.tuesday...south winds 5 to 15 knots becoming southwest. a chance
of showers and thunderstorms. waves 2 feet or less. 
.wednesday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.thursday...west winds 5 to 10 knots. a chance of showers
thursday night. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$
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