National Weather Service Marine Forecast FZUS51 KBUF

FZUS51 KBUF 180803
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
403 AM EDT Tue Aug 18 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.

LEZ020-181500
Upper Niagara River and Buffalo Harbor
403 AM EDT Tue Aug 18 2026

TODAY
Light and variable winds becoming west 5 to 10 knots. Patchy fog early.

TONIGHT
Southwest winds 5 to 10 knots. Showers likely overnight.

WEDNESDAY
Southwest winds 5 to 10 knots becoming west. Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon.

WEDNESDAY NIGHT
West winds less than 10 knots. A chance of showers in the evening. Patchy fog overnight.

THURSDAY
Light and variable winds. Patchy fog during the day.

FRIDAY
Light and variable winds. Mainly clear, then becoming partly cloudy.

SATURDAY
South winds 10 knots or less becoming southwest. A chance of showers during the day, then showers likely with a chance of thunderstorms Saturday night.

Winds and waves higher in and near thunderstorms.

The water temperature off Buffalo is 76 degrees.

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LOZ030-181500
Lower Niagara River
403 AM EDT Tue Aug 18 2026

TODAY
Light and variable winds becoming west 5 to 10 knots. Patchy fog early.

TONIGHT
Southwest winds 5 to 10 knots. Showers likely overnight.

WEDNESDAY
Southwest winds 5 to 10 knots becoming northwest. Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon.

WEDNESDAY NIGHT
Northwest winds less than 10 knots. A chance of showers in the evening. Patchy fog overnight.

THURSDAY
North winds less than 10 knots. Patchy fog during the day.

FRIDAY
Light and variable winds. Mainly clear, then becoming partly cloudy.

SATURDAY
South winds 5 to 10 knots becoming southwest. A chance of showers during the day, then showers likely with a chance of thunderstorms Saturday night.

Winds and waves higher in and near thunderstorms.

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LEZ040-041-181500
Buffalo to Ripley along Lake Erie
403 AM EDT Tue Aug 18 2026

TODAY
North winds 10 knots or less becoming west. Mostly sunny. Waves 1 foot or less.

TONIGHT
Southwest winds 5 to 10 knots. A chance of showers overnight. Waves 1 to 2 feet.

WEDNESDAY
Southwest winds 5 to 10 knots becoming west. Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet.

WEDNESDAY NIGHT
West winds 10 knots or less becoming east. A chance of showers in the evening. Waves 2 feet or less.

THURSDAY
East winds less than 10 knots. Becoming mainly clear. Waves 1 foot or less.

FRIDAY
East winds 10 knots or less becoming southeast. Mainly clear. Waves 1 foot or less.

SATURDAY
South winds 5 to 10 knots becoming southwest. A chance of showers during the day, then showers likely with a chance of thunderstorms Saturday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

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LOZ042-181500
Niagara River to Hamlin Beach along Lake Ontario
403 AM EDT Tue Aug 18 2026

TODAY
Northwest winds 10 knots or less becoming west. Mostly sunny. Waves 1 foot or less.

TONIGHT
Southwest winds 10 to 15 knots. Showers likely overnight. Waves 2 feet or less.

WEDNESDAY
Southwest winds 5 to 10 knots becoming northwest. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet.

WEDNESDAY NIGHT
Northwest winds 10 knots or less. Partly cloudy. Waves 1 to 2 feet.

THURSDAY
Northwest winds less than 10 knots becoming northeast. Mainly clear. Waves 1 foot or less.

FRIDAY
East winds 10 knots or less becoming southeast. Mainly clear, then becoming partly cloudy. Waves 1 foot or less.

SATURDAY
South winds 5 to 10 knots becoming southwest. A chance of showers during the day, then showers likely Saturday night. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

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LOZ043-181500
Hamlin Beach to Sodus Bay along Lake Ontario including Irondequoit Bay
403 AM EDT Tue Aug 18 2026

TODAY
Northwest winds 10 knots or less. Mostly sunny. Waves around 1 foot.

TONIGHT
West winds 10 knots or less becoming southwest. Partly cloudy. Waves 1 foot or less.

WEDNESDAY
Southwest winds 5 to 15 knots becoming west. Showers likely in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 2 feet or less.

WEDNESDAY NIGHT
West winds 5 to 10 knots becoming northwest. Partly cloudy. Waves 1 to 2 feet.

THURSDAY
Northwest winds less than 10 knots becoming west. Mainly clear. Waves 1 foot or less.

FRIDAY
Southeast winds 10 knots or less. Mainly clear, then becoming partly cloudy. Waves 1 foot or less.

SATURDAY
Southeast winds 5 to 10 knots becoming south. A chance of showers during the day, then showers likely Saturday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

The water temperature off Rochester is 47 degrees.

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LOZ044-181500
Sodus Bay to Mexico Bay along Lake Ontario
403 AM EDT Tue Aug 18 2026

TODAY
North winds 5 to 10 knots becoming west. Mostly sunny. Waves 1 foot or less.

TONIGHT
West winds 10 knots or less becoming southwest. Partly cloudy. Waves 1 foot or less.

WEDNESDAY
Southwest winds 5 to 10 knots becoming west. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 2 feet or less.

WEDNESDAY NIGHT
West winds 5 to 10 knots becoming northwest. Partly cloudy. Waves 1 to 2 feet.

THURSDAY
Northwest winds 10 knots or less. Mainly clear. Waves 1 foot or less.

FRIDAY
East winds 10 knots or less becoming southeast. Mainly clear. Waves 1 foot or less.

SATURDAY
Southeast winds 5 to 10 knots becoming south. A chance of showers during the day, then showers likely Saturday night. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

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LOZ045-181500
Mexico Bay to the Saint Lawrence River along Lake Ontario
403 AM EDT Tue Aug 18 2026

TODAY
Northeast winds 5 to 10 knots becoming west. Mostly sunny. Waves 1 foot or less.

TONIGHT
Southwest winds 5 to 15 knots becoming south. Partly cloudy. Waves 2 feet or less.

WEDNESDAY
Southwest winds 10 to 15 knots. Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 1 to 3 feet.

WEDNESDAY NIGHT
West winds 5 to 15 knots becoming northwest. Partly cloudy. Waves 1 to 3 feet.

THURSDAY
Northwest winds 10 knots or less becoming north. Mainly clear. Waves 1 foot or less.

FRIDAY
East winds 10 knots or less becoming southeast. Mainly clear. Waves 1 foot or less.

SATURDAY
Southeast winds 5 to 15 knots. A chance of showers during the day, then showers likely Saturday night. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.