Great Lakes Forecast
Issued by NWS
Issued by NWS
484 FZUS61 KBUF 100256 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1056 PM EDT Thu May 9 2024 For waters beyond five nautical miles of shore on Lake Ontario 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. .SYNOPSIS...A 29.5 inch low over the upper Ohio Valley late this evening, will slowly move to, then off the Mid Atlantic Coast tonight through Friday. A weak 29.8 inch ridge will then slide across the Lake Friday night, with a 29.6 inch trough then forecast to approach the lower Great Lakes Saturday. A 29.9 inch high will move into the Great Lakes region Sunday. LOZ062-100930- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1056 PM EDT Thu May 9 2024 .OVERNIGHT...North winds 5 to 10 knots becoming northeast. Waves 2 feet or less. .FRIDAY...Northeast winds 5 to 15 knots becoming east. A chance of showers. Waves 2 feet or less. .FRIDAY NIGHT...Northeast winds less than 10 knots. Waves 1 foot or less. .SATURDAY...Southeast winds 10 knots or less becoming east. A chance of showers. Waves 1 foot or less. .SATURDAY NIGHT...East winds 5 to 10 knots becoming northwest. A chance of showers in the evening. Waves 1 foot or less. .SUNDAY...West winds 5 to 15 knots becoming southwest. A chance of showers Sunday night. Waves 2 feet or less. .MONDAY...Southwest winds 10 to 15 knots. Showers likely with a chance of thunderstorms during the day, then a chance of showers and thunderstorms Monday night. Waves 1 to 3 feet. .TUESDAY...Southwest winds 5 to 10 knots becoming northeast. A chance of showers. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-100930- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1056 PM EDT Thu May 9 2024 .OVERNIGHT...North winds 5 to 15 knots becoming northeast. A chance of showers. Waves 2 feet or less. .FRIDAY...Northeast winds 5 to 15 knots becoming east less than 10 knots. A chance of showers early, then rain likely. A chance of showers late. Waves 1 to 3 feet subsiding to 1 foot or less. .FRIDAY NIGHT...South winds less than 10 knots. A chance of showers. Waves 1 foot or less. .SATURDAY...South winds 10 knots or less becoming east. A chance of showers. Waves 1 foot or less. .SATURDAY NIGHT...East winds 10 knots or less becoming south. A chance of showers. Waves 1 foot or less. .SUNDAY...Southwest winds 5 to 15 knots becoming south. A chance of showers during the day. Waves 2 feet or less. .MONDAY...South winds 10 to 15 knots becoming southwest. Showers likely with a chance of thunderstorms. Waves 1 to 2 feet. .TUESDAY...Southwest winds 5 to 10 knots becoming east. A chance of showers. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-100930- MAFOR 1003/ ONTARIO WEST 1/2 11800 11100 12110 11100 13200. A chance of showers Friday morning. Waves 2 feet or less overnight. Waves 1 to 3 feet Friday. Waves 1 foot or less Friday evening. ONTARIO EAST 1/2 11810 12110 11116 12106 11300 11400. A chance of showers overnight, Friday morning, and Friday evening. Waves 2 feet or less overnight. Waves 1 to 3 feet subsiding to 1 foot or less Friday. Waves 1 foot or less Friday evening. $$