FZUS51 KBUF 182012 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 411 PM EDT Sat Apr 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. LEZ020-190300- Upper Niagara River and Buffalo Harbor- 411 PM EDT Sat Apr 18 2026 .TONIGHT...West winds 5 to 10 knots becoming northwest. Rain showers this evening, then rain showers likely after midnight. .SUNDAY...West winds 5 to 15 knots. A chance of rain showers in the afternoon. .SUNDAY NIGHT...West winds 5 to 10 knots becoming northwest. A chance of rain and snow showers in the evening. .MONDAY...Northwest winds 5 to 10 knots becoming west. Partly to mostly sunny. .MONDAY NIGHT...West winds less than 10 knots. Becoming mainly clear. .TUESDAY...South winds 5 to 10 knots becoming southwest. Partly to mostly cloudy. .WEDNESDAY...Northwest winds 5 to 10 knots becoming light and variable. Partly cloudy, then becoming mainly clear. .THURSDAY...South winds less than 10 knots becoming southeast. Partly cloudy. The water temperature off Buffalo is 42 degrees. $$ LOZ030-190300- Lower Niagara River- 411 PM EDT Sat Apr 18 2026 .TONIGHT...West winds 5 to 15 knots becoming northwest. Rain showers likely. .SUNDAY...West winds 5 to 10 knots. A chance of rain showers in the afternoon. .SUNDAY NIGHT...West winds 5 to 10 knots becoming northwest. A chance of rain showers in the evening. .MONDAY...Northwest winds 5 to 10 knots. Mostly sunny. .MONDAY NIGHT...Northwest winds less than 10 knots. Becoming mainly clear. .TUESDAY...South winds 5 to 15 knots becoming west. Partly to mostly cloudy. .WEDNESDAY...Northwest winds 5 to 10 knots becoming light and variable. Becoming mainly clear. .THURSDAY...Southeast winds 10 knots or less becoming east. Partly cloudy. $$ LEZ040-041-190300- Buffalo to Ripley along Lake Erie- 411 PM EDT Sat Apr 18 2026 .TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots. Rain showers early, then rain showers likely. A chance of rain showers late. Waves 2 to 4 feet subsiding to 1 to 3 feet. .SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots. A chance of rain and snow showers in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet. .SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest. A chance of snow and rain showers in the evening, then a chance of snow showers overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet. .MONDAY...Northwest winds 5 to 10 knots becoming west. Partly to mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...West winds 10 knots or less becoming south. Becoming mainly clear. Waves 1 foot or less. .TUESDAY...South winds 5 to 10 knots becoming southwest. A chance of rain showers Tuesday night. Waves 1 foot or less. .WEDNESDAY...Northwest winds 5 to 10 knots becoming light and variable. Mostly cloudy, then clearing. Waves 1 foot or less. .THURSDAY...Light and variable winds. Partly cloudy. Waves 1 foot or less. $$ LOZ042-190300- Niagara River to Hamlin Beach along Lake Ontario- 411 PM EDT Sat Apr 18 2026 .TONIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. Rain showers early, then a chance of rain showers. A chance of rain and snow showers late. Waves 1 to 3 feet. .SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots. A chance of rain showers in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...West winds 15 to 20 knots becoming northwest. A chance of rain showers in the evening. Waves 2 to 4 feet. .MONDAY...Northwest winds 10 to 15 knots becoming west. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet. .MONDAY NIGHT...Northwest winds 5 to 15 knots becoming southwest 10 knots or less. Mainly clear. Waves 1 to 3 feet subsiding to 1 foot or less. .TUESDAY...South winds 15 to 20 knots becoming west 5 to 15 knots. Mostly cloudy. Waves 2 feet or less. .WEDNESDAY...Northwest winds 10 knots or less. Becoming mainly clear. Waves 1 foot or less. .THURSDAY...Northeast winds 10 knots or less becoming east. Partly to mostly cloudy. Waves 1 foot or less. $$ LOZ043-190300- Hamlin Beach to Sodus Bay along Lake Ontario including Irondequoit Bay- 411 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY AFTERNOON... .TONIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. Rain showers this evening, then rain showers likely after midnight. Rain showers with a chance of snow showers late. Waves 1 to 3 feet building to 2 to 4 feet. .SUNDAY...Northwest winds 10 to 15 knots becoming west 15 to 20 knots. Rain and snow showers likely in the morning. Waves 1 to 3 feet building to 2 to 4 feet. .SUNDAY NIGHT...West winds 15 to 20 knots. A chance of rain showers in the evening. Waves 2 to 4 feet building to 3 to 5 feet. Waves occasionally around 6 feet. .MONDAY...Northwest winds 15 to 20 knots becoming west 10 to 15 knots. Becoming mostly sunny. Waves 3 to 5 feet subsiding to 2 to 4 feet. Waves occasionally around 6 feet. .MONDAY NIGHT...West winds 5 to 15 knots becoming southwest. Mainly clear. Waves 1 to 3 feet. .TUESDAY...South winds 5 to 10 knots becoming southwest. Mostly cloudy. Waves 2 feet or less. .WEDNESDAY...Northwest winds 5 to 15 knots diminishing to less than 10 knots. Mostly cloudy, then clearing. Waves 2 feet or less. .THURSDAY...North winds 10 knots or less becoming southeast. Partly to mostly cloudy. Waves 1 foot or less. The water temperature off Rochester is 41 degrees. $$ LOZ044-190300- Sodus Bay to Mexico Bay along Lake Ontario- 411 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... .TONIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots. Rain showers. Waves 1 to 3 feet building to 2 to 4 feet. .SUNDAY...Northwest winds 10 to 15 knots becoming west 15 to 20 knots. Rain and snow showers likely in the morning. Waves 2 to 4 feet building to 3 to 5 feet. Waves occasionally around 6 feet. .SUNDAY NIGHT...West winds 15 to 20 knots. Partly cloudy. Waves 3 to 6 feet. Waves occasionally around 7 feet. .MONDAY...Northwest winds 15 to 20 knots becoming west 10 to 15 knots. Becoming mostly sunny. Waves 3 to 5 feet subsiding to 2 to 4 feet. Waves occasionally around 6 feet. .MONDAY NIGHT...West winds 5 to 15 knots becoming southwest. Mainly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet. .TUESDAY...South winds 5 to 15 knots. Partly cloudy, then becoming mostly cloudy. Waves 2 feet or less. .WEDNESDAY...North winds 5 to 15 knots becoming northwest less than 10 knots. Mostly cloudy, then clearing. Waves 2 feet or less. .THURSDAY...Northwest winds 10 knots or less becoming southeast. Partly to mostly cloudy. Waves 1 foot or less. $$ LOZ045-190300- Mexico Bay to the Saint Lawrence River along Lake Ontario- 411 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... .TONIGHT...South winds 15 to 20 knots becoming northwest 10 to 15 knots. Rain showers. Waves 2 to 4 feet. .SUNDAY...West winds 5 to 15 knots increasing to 15 to 20 knots. Rain and snow showers in the morning. Waves 1 to 3 feet building to 3 to 5 feet. Waves occasionally around 6 feet. .SUNDAY NIGHT...West winds 15 to 20 knots becoming northwest. Partly cloudy. Waves 3 to 5 feet. Waves occasionally around 6 feet. .MONDAY...Northwest winds 10 to 15 knots becoming west. Partly to mostly sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet. Waves occasionally around 6 feet. .MONDAY NIGHT...West winds 5 to 15 knots. Becoming mainly clear. Waves 1 to 3 feet. .TUESDAY...Southwest winds 10 to 15 knots becoming south. Mostly cloudy. Waves 2 feet or less. .WEDNESDAY...Northeast winds 5 to 15 knots becoming north less than 10 knots. Mostly cloudy, then clearing. Waves 1 foot or less. .THURSDAY...North winds 10 knots or less becoming northeast. Partly to mostly cloudy. Waves 1 foot or less. $$