FZUS51 KBUF 310809 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 409 AM EDT Tue Mar 31 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. LEZ020-311500- Upper Niagara River and Buffalo Harbor- 409 AM EDT Tue Mar 31 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON... .TODAY...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. Showers with a chance of thunderstorms this morning, then a chance of showers early this afternoon. Showers with a chance of thunderstorms late. Some thunderstorms may produce gusty winds late. .TONIGHT...Southwest winds 5 to 15 knots becoming northwest. Showers with a chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms overnight. Some thunderstorms may produce gusty winds in the evening. .WEDNESDAY...North winds 5 to 10 knots becoming northeast. A chance of rain showers. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. A chance of rain showers. .THURSDAY...Northeast winds 5 to 15 knots becoming south. Rain showers likely. .FRIDAY...Southwest winds 15 to 20 knots becoming north 5 to 15 knots. Showers likely during the day, then a chance of showers Friday night. .SATURDAY...East winds 5 to 15 knots becoming southwest. Showers likely. Winds and waves higher in and near thunderstorms. The water temperature off Buffalo is 32 degrees. $$ LOZ030-311500- Lower Niagara River- 409 AM EDT Tue Mar 31 2026 .TODAY...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. Showers with a chance of thunderstorms early, then a chance of showers. Showers with a chance of thunderstorms late. Some thunderstorms may produce gusty winds late. .TONIGHT...Southwest winds 5 to 15 knots becoming north. Showers with a chance of thunderstorms in the evening, then showers likely overnight. Some thunderstorms may produce gusty winds in the evening. .WEDNESDAY...North winds 5 to 10 knots becoming northeast. A chance of rain showers. .WEDNESDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain showers. .THURSDAY...East winds 5 to 15 knots becoming south. Rain showers likely. .FRIDAY...Southwest winds 5 to 15 knots becoming north. Showers likely during the day, then a chance of showers Friday night. .SATURDAY...Northeast winds 5 to 15 knots becoming southwest. A chance of showers during the day, then showers likely Saturday night. Winds and waves higher in and near thunderstorms. $$ LEZ040-041-311500- Buffalo to Ripley along Lake Erie- 409 AM EDT Tue Mar 31 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON... .TODAY...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. Showers with a chance of thunderstorms this morning, then a chance of showers early this afternoon. Showers with a chance of thunderstorms late. Some thunderstorms may produce gusty winds late. Waves in ice free areas 3 to 5 feet subsiding to 1 to 3 feet. Waves in ice free areas occasionally around 6 feet. .TONIGHT...Southwest winds 5 to 15 knots becoming west. Rain showers with a chance of thunderstorms. Patchy fog overnight. Some thunderstorms may produce gusty winds in the evening. Waves 1 to 3 feet. .WEDNESDAY...Northwest winds 5 to 10 knots becoming northeast. Rain showers likely. Waves 1 to 3 feet subsiding to 1 foot or less. .WEDNESDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain showers. Waves 2 feet or less. .THURSDAY...Northeast winds 5 to 15 knots becoming south 15 to 20 knots. Rain showers likely. Waves 1 to 3 feet. .FRIDAY...Southwest winds 15 to 20 knots becoming north 5 to 15 knots. Showers likely during the day, then a chance of showers Friday night. Waves 1 to 3 feet. .SATURDAY...East winds 5 to 15 knots becoming southwest 15 to 20 knots. Showers likely. Waves 1 foot or less building to 1 to 3 feet. Winds and waves higher in and near thunderstorms. Wave heights are for ice free areas. $$ LOZ042-311500- Niagara River to Hamlin Beach along Lake Ontario- 409 AM EDT Tue Mar 31 2026 .TODAY...West winds 10 to 15 knots becoming east 15 to 20 knots. Showers with a chance of thunderstorms this morning, then a chance of showers early this afternoon. Showers with a chance of thunderstorms late. Some thunderstorms may produce gusty winds late. Waves 1 to 3 feet building to 2 to 4 feet. .TONIGHT...East winds 15 to 20 knots becoming north 10 to 15 knots. Rain showers with a chance of thunderstorms in the evening, then rain showers likely overnight. Some thunderstorms may produce gusty winds in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY...North winds 5 to 15 knots becoming northeast. A chance of rain showers. Waves 1 to 3 feet. .WEDNESDAY NIGHT...East winds 5 to 15 knots increasing to 15 to 20 knots. A chance of rain showers. Waves 1 to 2 feet building to 3 to 5 feet. Waves occasionally around 6 feet. .THURSDAY...East winds 15 to 20 knots becoming south. Rain showers likely. Waves 3 to 6 feet building to 4 to 7 feet, then subsiding to 2 to 4 feet. Waves occasionally around 9 feet. .FRIDAY...Southwest winds 15 to 25 knots becoming north and diminishing to 10 to 15 knots. Showers likely during the day, then a chance of showers Friday night. Waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 1 to 3 feet. Waves occasionally around 6 feet. .SATURDAY...East winds 10 to 15 knots becoming southwest 15 to 20 knots. A chance of showers during the day, then showers likely Saturday night. Waves 1 to 3 feet building to 3 to 5 feet. Waves occasionally around 6 feet. Winds and waves higher in and near thunderstorms. $$ LOZ043-311500- Hamlin Beach to Sodus Bay along Lake Ontario including Irondequoit Bay- 409 AM EDT Tue Mar 31 2026 .TODAY...West winds 5 to 15 knots becoming east. Rain showers with a chance of thunderstorms this morning, then a chance of rain showers early this afternoon. Rain showers with a chance of thunderstorms late. Waves 2 feet or less. .TONIGHT...East winds 10 to 15 knots becoming north. Rain showers with a chance of thunderstorms in the evening, then rain showers likely with a chance of thunderstorms overnight. Some thunderstorms may produce gusty winds in the evening. Waves 1 to 3 feet. .WEDNESDAY...North winds 5 to 15 knots becoming northeast. A chance of rain showers. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 5 to 15 knots increasing to 15 to 20 knots. A chance of rain showers. Waves 1 to 3 feet building to 2 to 4 feet. .THURSDAY...Northeast winds 15 to 25 knots becoming south. Rain showers likely. Waves 3 to 6 feet subsiding to 2 to 4 feet. Waves occasionally around 7 feet. .FRIDAY...South winds 15 to 25 knots becoming northwest and diminishing to 10 to 15 knots. A chance of showers. Waves 1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to 3 feet. .SATURDAY...Northeast winds 5 to 15 knots becoming south 15 to 20 knots. A chance of showers during the day, then showers likely Saturday night. Waves 1 to 3 feet building to 2 to 4 feet. Winds and waves higher in and near thunderstorms. The water temperature off Rochester is 38 degrees. $$ LOZ044-045-311500- Sodus Bay to the Saint Lawrence River along Lake Ontario- 409 AM EDT Tue Mar 31 2026 .TODAY...Southwest winds 5 to 10 knots becoming northeast. Patchy fog early. Rain showers with a chance of thunderstorms this morning, then a chance of rain showers early this afternoon. Rain showers with a chance of thunderstorms late. Waves 2 feet or less. .TONIGHT...Northeast winds 5 to 15 knots becoming north. Rain showers with a chance of thunderstorms. Some thunderstorms may produce gusty winds in the evening. Waves 2 feet or less. .WEDNESDAY...North winds 5 to 15 knots. A chance of rain showers. Waves 2 feet or less. .WEDNESDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain showers. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots becoming south and increasing to 30 knots. Rain showers. Waves 1 to 3 feet building to 3 to 6 feet. Waves occasionally around 7 feet. .FRIDAY...South winds to 30 knots becoming northwest and diminishing to 5 to 10 knots. Showers. Waves 3 to 6 feet subsiding to 2 to 4 feet. Waves occasionally around 7 feet. .SATURDAY...Northeast winds 5 to 15 knots becoming south and increasing to 15 to 25 knots. A chance of rain showers during the day, then rain showers likely Saturday night. Waves 1 to 3 feet building to 3 to 6 feet. Waves occasionally around 7 feet. Winds and waves higher in and near thunderstorms. $$