FZUS51 KBUF 302003 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 403 PM EDT Thu Apr 30 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. LEZ020-010300- Upper Niagara River and Buffalo Harbor- 403 PM EDT Thu Apr 30 2026 .TONIGHT...West winds 5 to 10 knots becoming light and variable. A chance of rain showers early. .FRIDAY...Light and variable winds becoming southwest 5 to 10 knots. A chance of rain showers in the afternoon. .FRIDAY NIGHT...Southwest winds less than 10 knots. A chance of rain showers in the evening. .SATURDAY...Light and variable winds becoming west 5 to 10 knots. Mostly sunny. .SATURDAY NIGHT...West winds less than 10 knots. Mostly cloudy in the evening, then clearing. .SUNDAY...West winds 5 to 15 knots becoming southwest. A chance of rain showers Sunday night. .MONDAY...Southwest winds 15 to 20 knots. A chance of showers during the day, then a chance of showers and thunderstorms Monday night. .TUESDAY...Southwest winds 15 to 20 knots becoming south 5 to 15 knots. A chance of showers. Winds and waves higher in and near thunderstorms. The water temperature off Buffalo is 46 degrees. $$ LOZ030-010300- Lower Niagara River- 403 PM EDT Thu Apr 30 2026 .TONIGHT...West winds 5 to 10 knots becoming light and variable. Mostly cloudy this evening, then becoming partly cloudy. .FRIDAY...Light and variable winds becoming west 5 to 10 knots. A chance of rain showers in the afternoon. .FRIDAY NIGHT...West winds less than 10 knots becoming northwest. Partly to mostly cloudy. .SATURDAY...Northwest winds 10 knots or less becoming west. Mostly sunny. .SATURDAY NIGHT...West winds less than 10 knots becoming northwest. Mostly cloudy in the evening, then clearing. .SUNDAY...West winds 5 to 15 knots becoming southwest 15 to 20 knots. A chance of rain showers Sunday night. .MONDAY...Southwest winds 15 to 20 knots. A chance of showers during the day, then a chance of showers and thunderstorms Monday night. .TUESDAY...Southwest winds 15 to 20 knots becoming southeast 5 to 15 knots. A chance of showers. Winds and waves higher in and near thunderstorms. $$ LEZ040-010300- Ripley to Dunkirk along Lake Erie- 403 PM EDT Thu Apr 30 2026 .TONIGHT...West winds around 10 knots becoming light and variable. A chance of rain showers early. Waves 1 to 2 feet. .FRIDAY...Light and variable winds. A chance of rain showers. Waves 1 foot or less. .FRIDAY NIGHT...West winds 10 knots or less becoming northwest. Partly cloudy. Waves 1 foot or less. .SATURDAY...North winds 10 knots or less becoming west. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...West winds 10 knots or less becoming northwest. Partly cloudy. Waves around 1 foot. .SUNDAY...West winds 5 to 15 knots becoming southwest 15 to 20 knots. A chance of rain showers Sunday night. Waves 1 to 3 feet. .MONDAY...Southwest winds 15 to 20 knots. A chance of showers during the day, then a chance of showers and thunderstorms Monday night. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming south 5 to 15 knots. A chance of showers during the day, then showers likely Tuesday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LEZ041-010300- Dunkirk to Buffalo along Lake Erie- 403 PM EDT Thu Apr 30 2026 .TONIGHT...West winds 5 to 10 knots becoming light and variable. A chance of rain showers this evening. Waves 2 feet or less. .FRIDAY...Light and variable winds. A chance of rain showers in the afternoon. Waves 1 foot or less. .FRIDAY NIGHT...West winds less than 10 knots becoming northwest. Partly cloudy. Waves 1 foot or less. .SATURDAY...Northwest winds 10 knots or less becoming west. Mostly sunny. Waves 1 foot or less. .SATURDAY NIGHT...West winds 10 knots or less becoming northwest. Partly cloudy. Waves 1 foot or less. .SUNDAY...West winds 5 to 15 knots becoming southwest 15 to 20 knots. A chance of rain showers Sunday night. Waves 1 to 3 feet. .MONDAY...Southwest winds 15 to 20 knots. A chance of showers during the day, then a chance of showers and thunderstorms Monday night. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming southeast 5 to 15 knots. A chance of showers during the day, then showers likely Tuesday night. Waves 2 to 4 feet subsiding to 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LOZ042-010300- Niagara River to Hamlin Beach along Lake Ontario- 403 PM EDT Thu Apr 30 2026 .TONIGHT...West winds 5 to 15 knots. Partly cloudy. Waves 1 to 2 feet. .FRIDAY...West winds 10 knots or less. Partly to mostly sunny. Waves 1 foot or less. .FRIDAY NIGHT...West winds 10 knots or less becoming northwest. Partly cloudy. Waves 1 foot or less. .SATURDAY...West winds 5 to 10 knots. Sunny. Waves 1 foot or less. .SATURDAY NIGHT...West winds 5 to 10 knots becoming northwest. Partly cloudy. Waves 1 foot or less. .SUNDAY...West winds 5 to 15 knots becoming southwest and increasing to 15 to 25 knots. A chance of rain showers Sunday night. Waves 1 to 3 feet building to 2 to 4 feet. .MONDAY...Southwest winds 15 to 25 knots increasing to 30 knots. A chance of showers. Waves 2 to 4 feet building to 3 to 6 feet. Waves occasionally around 7 feet. .TUESDAY...Southwest winds to 30 knots becoming east and diminishing to 10 to 15 knots. A chance of showers. Waves 3 to 6 feet subsiding to 1 to 3 feet. Waves occasionally around 7 feet. $$ LOZ043-044-010300- Hamlin Beach to Mexico Bay along Lake Ontario including Irondequoit Bay- 403 PM EDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT FRIDAY... .TONIGHT...West winds 15 to 20 knots becoming northwest 5 to 15 knots. Partly to mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet. .FRIDAY...West winds 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .FRIDAY NIGHT...West winds 10 knots or less. Partly cloudy. Waves 1 foot or less. .SATURDAY...West winds 5 to 10 knots. Sunny. Waves 2 feet or less. .SATURDAY NIGHT...West winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .SUNDAY...West winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of rain showers Sunday night. Waves 1 to 3 feet. .MONDAY...Southwest winds 15 to 20 knots becoming south. A chance of showers. Waves 1 to 3 feet building to 2 to 4 feet. .TUESDAY...Southwest winds 15 to 20 knots becoming south 5 to 15 knots. A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet. The water temperature off Rochester is 44 degrees. $$ LOZ045-010300- Mexico Bay to the Saint Lawrence River along Lake Ontario- 403 PM EDT Thu Apr 30 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT FRIDAY... .TONIGHT...West winds 5 to 15 knots becoming north less than 10 knots. A chance of rain showers early. Waves 2 to 4 feet subsiding to 1 to 3 feet. .FRIDAY...Northwest winds 10 knots or less becoming west. Mostly sunny. Waves 2 feet or less. .FRIDAY NIGHT...Southwest winds 10 knots or less. Partly cloudy. Waves 1 foot or less. .SATURDAY...West winds 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .SATURDAY NIGHT...West winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .SUNDAY...West winds 10 to 15 knots becoming south 15 to 20 knots. A chance of rain showers Sunday night. Waves 1 to 3 feet. .MONDAY...South winds 15 to 25 knots increasing to 30 knots. Showers likely. Waves 2 to 4 feet building to 3 to 6 feet. Waves occasionally around 7 feet. .TUESDAY...Southwest winds 15 to 25 knots becoming south and diminishing to 10 to 15 knots. A chance of showers. Waves 3 to 6 feet subsiding to 1 to 3 feet. Waves occasionally around 7 feet. $$