664
FZUS51 KBUF 200803
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
403 AM EDT Wed Aug 20 2025

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.

LEZ020-201500-
Upper Niagara River and Buffalo Harbor-
403 AM EDT Wed Aug 20 2025

.TODAY...Southeast winds 10 knots or less becoming northeast. A
chance of showers.
.TONIGHT...Northeast winds 5 to 10 knots. Cloudy.
.THURSDAY...Northeast winds 5 to 10 knots. Mostly cloudy in the
morning, then becoming partly sunny.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots becoming light
and variable. Mainly clear.
.FRIDAY...Light and variable winds. Mainly clear.
.SATURDAY...South winds 10 knots or less becoming southwest.
Showers likely Saturday night.
.SUNDAY...Southwest winds 10 knots or less. Showers likely during
the day, then a chance of showers Sunday night.

The water temperature off Buffalo is 76 degrees.

$$

LOZ030-201500-
Lower Niagara River-
403 AM EDT Wed Aug 20 2025

.TODAY...East winds 5 to 15 knots becoming northeast 15 to
20 knots. A chance of showers this morning.
.TONIGHT...Northeast winds 15 to 20 knots diminishing to 10 to
15 knots. Cloudy.
.THURSDAY...Northeast winds 10 to 15 knots. Mostly cloudy in the
morning, then becoming partly sunny.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots becoming light
and variable. Mainly clear.
.FRIDAY...Northeast winds less than 10 knots. Mainly clear.
.SATURDAY...South winds 10 knots or less becoming southwest. A
chance of showers Saturday night.
.SUNDAY...Southwest winds 5 to 15 knots becoming west. A chance
of showers.

$$

LEZ041-201500-
Dunkirk to Buffalo along Lake Erie-
403 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...

.TODAY...South winds 5 to 15 knots becoming north. A chance of
waterspouts. A chance of showers. Waves 2 feet or less.
.TONIGHT...Northeast winds 10 to 15 knots increasing to 15 to
20 knots. Cloudy. Waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Mostly cloudy in the
morning, then becoming partly sunny. Waves 1 to 3 feet.
.THURSDAY NIGHT...Northeast winds 5 to 15 knots becoming east
less than 10 knots. Mainly clear. Waves 2 feet or less.
.FRIDAY...East winds 10 knots or less becoming south. Mainly
clear. Waves 1 foot or less.
.SATURDAY...South winds 5 to 10 knots becoming southwest. Showers
likely Saturday night. Waves 2 feet or less.
.SUNDAY...Southwest winds 5 to 15 knots. Showers likely during
the day, then a chance of showers Sunday night. Waves 1 to
3 feet.

$$

LEZ040-201500-
Ripley to Dunkirk along Lake Erie-
403 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...

.TODAY...South winds 5 to 15 knots becoming north. A chance of
waterspouts. A chance of showers. Waves 2 feet or less.
.TONIGHT...Northeast winds 15 to 20 knots. A chance of
waterspouts overnight. A chance of showers overnight. Waves 2 to
3 feet building to 3 to 5 feet. Waves occasionally around 6 feet.
.THURSDAY...Northeast winds 15 to 20 knots diminishing to 10 to
15 knots. Mostly cloudy in the morning, then becoming partly
sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY NIGHT...Northeast winds 5 to 15 knots becoming east.
Mainly clear. Waves 1 to 3 feet subsiding to 1 foot or less.
.FRIDAY...East winds 5 to 10 knots becoming south. Mainly clear.
Waves 1 foot or less.
.SATURDAY...South winds around 10 knots becoming southwest.
Showers likely Saturday night. Waves 2 feet or less.
.SUNDAY...Southwest winds 10 to 15 knots becoming west. Showers
likely during the day, then a chance of showers Sunday night.
Waves 1 to 3 feet.

$$

LOZ042-201500-
Niagara River to Hamlin Beach along Lake Ontario-
403 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH THURSDAY EVENING...

.TODAY...East winds 10 to 15 knots becoming northeast and
increasing to 15 to 25 knots. A chance of showers. Waves 1 to
3 feet building to 3 to 6 feet. Waves occasionally around 7 feet.
.TONIGHT...Northeast winds 15 to 25 knots becoming east. A chance
of showers in the evening. Waves 5 to 8 feet. Waves occasionally
around 10 feet.
.THURSDAY...East winds 15 to 20 knots diminishing to 10 to
15 knots. Mostly cloudy in the morning, then becoming mostly
sunny. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves
occasionally around 9 feet.
.THURSDAY NIGHT...East winds 5 to 15 knots becoming northeast.
Mainly clear. Waves 1 to 3 feet.
.FRIDAY...Northeast winds 10 knots or less becoming south. Mainly
clear. Waves 1 foot or less.
.SATURDAY...Southwest winds 5 to 15 knots. A chance of showers
Saturday night. Waves 2 feet or less.
.SUNDAY...West winds 15 to 20 knots becoming southwest. A chance
of showers. Waves 1 to 3 feet.

$$

LOZ043-201500-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
403 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY AFTERNOON...

.TODAY...Southeast winds 15 to 20 knots becoming east. Showers
early, then a chance of showers from late morning on. Waves 1 to
3 feet building to 3 to 5 feet. Waves occasionally around 6 feet.
.TONIGHT...East winds 15 to 20 knots. A chance of showers in the
evening. Waves 3 to 6 feet. Waves occasionally around 7 feet.
.THURSDAY...East winds 15 to 20 knots becoming northeast 10 to
15 knots. Mostly cloudy in the morning, then becoming mostly
sunny. Waves 3 to 6 feet subsiding to 1 to 3 feet. Waves
occasionally around 7 feet.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots. Mainly clear.
Waves 1 to 2 feet.
.FRIDAY...Northeast winds 10 knots or less becoming south. Mainly
clear. Waves 1 foot or less.
.SATURDAY...South winds 5 to 15 knots becoming southwest. Showers
likely Saturday night. Waves 1 foot or less.
.SUNDAY...Southwest winds 10 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 46 degrees.

$$

LOZ044-201500-
Sodus Bay to Mexico Bay along Lake Ontario-
403 AM EDT Wed Aug 20 2025

.TODAY...Southeast winds 15 to 20 knots becoming east. Showers
early, then showers likely late this morning. A chance of showers
this afternoon. Waves 1 to 3 feet.
.TONIGHT...East winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers in the evening. Waves 1 to 3 feet.
.THURSDAY...East winds 5 to 15 knots becoming northeast. Mostly
cloudy in the morning, then becoming mostly sunny. Waves 2 feet
or less.
.THURSDAY NIGHT...Northeast winds 10 knots or less. Mainly clear.
Waves 1 foot or less.
.FRIDAY...Northeast winds 10 knots or less becoming south. Mainly
clear. Waves 1 foot or less.
.SATURDAY...South winds 5 to 15 knots. Showers likely Saturday
night. Waves 2 feet or less.
.SUNDAY...South winds 10 to 15 knots becoming southwest. Showers
likely with a chance of thunderstorms. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ045-201500-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
403 AM EDT Wed Aug 20 2025

.TODAY...Southeast winds 15 to 20 knots becoming east. Showers
early, then a chance of showers from late morning on. Waves 1 to
3 feet.
.TONIGHT...East winds 15 to 20 knots becoming northeast 10 to
15 knots. Mostly cloudy. Waves 2 feet or less.
.THURSDAY...Northeast winds 5 to 15 knots. Becoming mostly sunny.
Waves 1 foot or less.
.THURSDAY NIGHT...Northeast winds 10 knots or less. Mainly clear.
Waves 1 foot or less.
.FRIDAY...Northeast winds 10 knots or less becoming south. Mainly
clear. Waves 1 foot or less.
.SATURDAY...South winds 5 to 15 knots increasing to 15 to
20 knots. Showers likely Saturday night. Waves 2 feet or less
building to 2 to 4 feet.
.SUNDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers likely with a chance of thunderstorms. Waves
2 to 4 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$