fzus61 kbuf 282003
glflo 
expires:202607290300;;237201

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt tue jul 28 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 broad surface low and cold front draped from southern ontario to 
western pennsylvania will slowly pivot eastward to the upper saint 
lawrence valley and central new york through early this evening. the 
surface low will then redevelop and lift northeastward off the mid-
atlantic and new england coastlines tonight through wednesday 
night...while a slowly weakening inverted trough lingers across 
eastern new york and western new england. a weak 30.0 inch high will 
then build eastward across the lower great lakes thursday and 
friday...before sliding out across new england saturday.


loz063>065-290300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt tue jul 28 2026

.tonight...west winds 5 to 15 knots becoming north 15 to
20 knots. showers likely with a chance of thunderstorms early,
then showers likely late this evening. a chance of showers after
midnight. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...north winds 15 to 20 knots. a chance of showers
early, then showers with a chance of thunderstorms from late
morning on. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday night...north winds 15 to 20 knots. showers with a
chance of thunderstorms in the evening, then a chance of showers
overnight. waves 2 to 4 feet. 
.thursday...north winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday night...northwest winds 10 knots or less. waves 2 feet
or less. 
.friday...northwest winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds 10 knots or less. a chance of showers
saturday night. waves 1 foot or less. 
.sunday...south winds 10 knots or less becoming northeast. a
chance of showers. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 282003
glfsl 
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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt tue jul 28 2026


slz022-024-290300-
saint lawrence river from cape vincent to saint regis
403 pm edt tue jul 28 2026

.tonight...light and variable winds. showers with a chance of
thunderstorms this evening, then showers likely after midnight. 
.wednesday...north winds 10 knots or less becoming northeast. a
chance of showers early, then showers with a chance of
thunderstorms from late morning on. 
.wednesday night...northeast winds 5 to 10 knots. showers likely
with a chance of thunderstorms in the evening, then a chance of
showers overnight. 
.thursday...northeast winds 5 to 10 knots. a chance of showers. 
.thursday night...north winds less than 10 knots. a chance of
showers in the evening. 
.friday...light and variable winds. mainly clear, then becoming
partly cloudy. 
.saturday...southwest winds less than 10 knots. a chance of
showers saturday night. 
.sunday...southwest winds less than 10 knots. showers likely with
a chance of thunderstorms. 

winds and waves higher in and near thunderstorms.

$$