fzus61 kbuf 152003
glflo 
expires:202507160300;;498706

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue jul 15 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 30.1 inch high will slowly drift from the great lakes to new 
england through wednesday. a 29.7 inch low will track northeastward 
across the great lakes and into quebec wednesday night and thursday, 
with its trailing cold front pushing across the lake early friday. a 
30.2 inch high will then build into the region later friday through 
saturday.


loz063>065-160300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt tue jul 15 2025

.tonight...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.wednesday...south winds 5 to 10 knots becoming southeast. a
chance of showers and thunderstorms late. waves 1 foot or less. 
.wednesday night...south winds 5 to 10 knots. a chance of showers
and thunderstorms. waves 1 foot or less. 
.thursday...south winds 10 to 15 knots becoming west. a chance of
showers in the morning, then showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet. 
.thursday night...west winds 10 to 15 knots becoming north 15 to
20 knots. showers likely with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 2 to 4 feet. 
.friday...north winds 5 to 15 knots becoming southwest. waves
2 to 4 feet subsiding to 2 feet or less. 
.saturday...south winds 5 to 10 knots. a chance of showers
saturday night. waves 1 foot or less. 
.sunday...south winds around 10 knots becoming north. a chance of
showers during the day. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 152003
glfsl 
expires:202507160300;;498704

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 pm edt tue jul 15 2025


slz022-024-160300-
saint lawrence river from cape vincent to saint regis
402 pm edt tue jul 15 2025

.tonight...southwest winds 10 knots or less becoming south.
mainly clear. 
.wednesday...south winds 10 knots or less becoming southwest.
sunny.
.wednesday night...southwest winds less than 10 knots becoming
south. a chance of showers and thunderstorms. 
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers in the morning, then showers likely with a
chance of thunderstorms in the afternoon. 
.thursday night...west winds 5 to 10 knots becoming northwest.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. 
.friday...north winds 5 to 10 knots becoming light and variable.
mainly clear. 
.saturday...southwest winds less than 10 knots. a chance of
showers saturday night. 
.sunday...west winds less than 10 knots becoming north. a chance
of showers. 

winds and waves higher in and near thunderstorms.

$$