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nearshore marine forecast
national weather service buffalo ny
404 am edt thu may 21 2026

for waters within five nautical miles of shore

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.


loz043-044-211500-
hamlin beach to mexico bay along lake ontario
including irondequoit bay-
404 am edt thu may 21 2026

...small craft advisory in effect until 11 am edt this morning...

.today...northeast winds 15 to 20 knots diminishing to 5 to
15 knots. becoming mostly sunny. waves 3 to 6 feet subsiding to
1 to 3 feet. waves occasionally around 7 feet. 
.tonight...north winds 10 knots or less becoming east. mainly
clear. waves 1 foot or less. 
.friday...east winds 5 to 15 knots becoming northeast. partly to
mostly sunny. waves 2 feet or less. 
.friday night...northeast winds 10 to 15 knots becoming east. a
chance of showers overnight. waves 1 to 3 feet. 
.saturday...southeast winds 15 to 25 knots. showers. waves 1 to
3 feet building to 3 to 5 feet. waves occasionally around 6 feet.
.sunday...southeast winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. showers. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...south winds 5 to 10 knots becoming light and variable.
showers likely during the day. waves 1 foot or less. 

the water temperature off rochester is 53 degrees.

$$

fzus51 kbuf 210804
nshbuf
expires:202605211500;;390447

nearshore marine forecast
national weather service buffalo ny
404 am edt thu may 21 2026

for waters within five nautical miles of shore

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.


loz045-211500-
mexico bay to the saint lawrence river along lake ontario-
404 am edt thu may 21 2026

.today...northeast winds 15 to 20 knots becoming north 5 to
15 knots. mostly sunny. waves 1 to 3 feet subsiding to 1 foot or
less. 
.tonight...north winds 5 to 10 knots becoming northeast. mainly
clear. waves 1 foot or less. 
.friday...east winds 5 to 10 knots becoming north. mostly sunny.
waves 1 foot or less. 
.friday night...northeast winds 5 to 10 knots becoming east.
mostly cloudy. waves 1 foot or less. 
.saturday...east winds 10 to 15 knots becoming southeast and
increasing to 30 knots. showers. waves 1 to 3 feet building to
3 to 5 feet. waves occasionally around 6 feet. 
.sunday...southeast winds to 30 knots becoming south and
diminishing to 15 to 20 knots. showers. waves 3 to 5 feet
subsiding to 1 to 3 feet. waves occasionally around 6 feet. 
.monday...south winds 10 knots or less becoming southwest.
showers likely during the day. waves 2 feet or less. 

$$