FZUS51 KBUF 192003 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 403 PM EDT Tue May 19 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-LOZ030-200300- Upper Niagara River and Buffalo Harbor-Lower Niagara River- 403 PM EDT Tue May 19 2026 .TONIGHT...Southwest winds 10 to 15 knots becoming west. Showers with a chance of thunderstorms this evening, then a chance of showers after midnight. Showers late. .WEDNESDAY...Northwest winds 5 to 10 knots. A chance of showers in the morning. .WEDNESDAY NIGHT...North winds 10 knots or less. Mostly cloudy. .THURSDAY...Northeast winds 5 to 10 knots. Mostly sunny. .THURSDAY NIGHT...Northeast winds 10 knots or less becoming east. Partly to mostly cloudy. .FRIDAY...East winds 5 to 10 knots. Showers likely Friday night. .SATURDAY...East winds 5 to 15 knots becoming southeast. Showers. .SUNDAY...Southeast winds 5 to 10 knots becoming light and variable. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. The water temperature off Buffalo is 55 degrees. $$ LEZ040-041-200300- Buffalo to Ripley along Lake Erie- 403 PM EDT Tue May 19 2026 .TONIGHT...Southwest winds around 10 knots becoming west. Showers with a chance of thunderstorms this evening, then showers after midnight. Waves 1 to 3 feet. .WEDNESDAY...West winds 5 to 10 knots. A chance of showers in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northeast. Mostly cloudy. Waves 1 foot or less. .THURSDAY...Northeast winds 5 to 15 knots. Mostly sunny. Waves 2 feet or less. .THURSDAY NIGHT...Northeast winds 5 to 10 knots becoming east. Partly to mostly cloudy. Waves 2 feet or less. .FRIDAY...East winds 5 to 15 knots. A chance of showers during the day, then showers Friday night. Waves 2 feet or less. .SATURDAY...East winds 10 to 15 knots becoming southeast. Showers with a chance of thunderstorms. Waves 2 feet or less. .SUNDAY...South winds 5 to 10 knots becoming light and variable. A chance of showers and thunderstorms. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LOZ042-200300- Niagara River to Hamlin Beach along Lake Ontario- 403 PM EDT Tue May 19 2026 .TONIGHT...Southwest winds 15 to 20 knots becoming west. Showers with a chance of thunderstorms this evening, then a chance of showers after midnight. Showers late. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY...West winds 10 to 15 knots. A chance of showers in the morning. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming north. Partly to mostly cloudy. Waves 1 to 3 feet. .THURSDAY...Northeast winds 5 to 15 knots becoming east. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...East winds 10 knots or less. Partly cloudy. Waves 1 foot or less. .FRIDAY...East winds 10 to 15 knots increasing to 15 to 20 knots. Showers likely Friday night. Waves 1 to 3 feet. .SATURDAY...East winds 15 to 20 knots diminishing to 10 to 15 knots. Showers likely. Waves 3 to 5 feet subsiding to 1 to 3 feet. Waves occasionally around 6 feet. .SUNDAY...Southeast winds 5 to 15 knots becoming southwest less than 10 knots. Showers likely during the day, then a chance of showers Sunday night. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ043-044-200300- Hamlin Beach to Mexico Bay along Lake Ontario including Irondequoit Bay- 403 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE WEDNESDAY NIGHT... .TONIGHT...Southwest winds 10 to 15 knots becoming west 15 to 20 knots. A chance of showers and thunderstorms early, then showers likely with a chance of thunderstorms late this evening. Showers after midnight. Waves 1 to 3 feet. .WEDNESDAY...West winds 15 to 20 knots. A chance of showers in the morning. Waves 2 to 4 feet building to 3 to 6 feet. Waves occasionally around 7 feet. .WEDNESDAY NIGHT...West winds 15 to 20 knots becoming north 10 to 15 knots. Partly to mostly cloudy. Waves 3 to 6 feet subsiding to 2 to 4 feet. Waves occasionally around 7 feet. .THURSDAY...Northeast winds 5 to 15 knots becoming north. Mostly sunny. Waves 1 to 3 feet. .THURSDAY NIGHT...Northwest winds less than 10 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...East winds 5 to 15 knots. A chance of showers Friday night. Waves 1 to 3 feet. .SATURDAY...Southeast winds 15 to 20 knots. Showers likely. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SUNDAY...Southeast winds 15 to 20 knots becoming south 5 to 15 knots. Showers likely with a chance of thunderstorms during the day, then a chance of showers and thunderstorms Sunday night. Waves 1 to 3 feet subsiding to 1 foot or less. Winds and waves higher in and near thunderstorms. The water temperature off Rochester is 50 degrees. $$ LOZ045-200300- Mexico Bay to the Saint Lawrence River along Lake Ontario- 403 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH LATE WEDNESDAY NIGHT... .TONIGHT...Southwest winds 10 to 15 knots. Showers likely with a chance of thunderstorms this evening, then showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet. .WEDNESDAY...West winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of showers in the morning. Waves 2 to 4 feet building to 3 to 6 feet. Waves occasionally around 7 feet. .WEDNESDAY NIGHT...West winds 15 to 20 knots becoming north 10 to 15 knots. Partly to mostly cloudy. Waves 3 to 6 feet subsiding to 1 to 3 feet. Waves occasionally around 7 feet. .THURSDAY...North winds 5 to 15 knots becoming northwest. Sunny. Waves 2 feet or less. .THURSDAY NIGHT...Northwest winds less than 10 knots. Partly cloudy. Waves 1 foot or less. .FRIDAY...East winds 10 knots or less. A chance of showers Friday night. Waves 1 foot or less. .SATURDAY...East winds 10 to 15 knots becoming southeast 15 to 20 knots. Showers likely. Waves 1 to 3 feet. .SUNDAY...Southeast winds 15 to 20 knots becoming south 10 to 15 knots. Showers likely during the day, then a chance of showers Sunday night. Waves 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$