Great Lakes Forecast
Issued by NWS
Issued by NWS
836 FZUS61 KBUF 040203 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1003 PM EDT Wed Jun 3 2026 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 30.4 inch high will expand to the Ohio Valley and eastern seaboard through Thursday. This high will then drift off the southeast coast Friday. A weak cold front will settle south across the lower Great Lakes Saturday through Saturday night. High pressure averaging 30.4 inches will build southeast into the region starting early Monday and center near or just east of the lake through Wednesday. LOZ062-040900- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1003 PM EDT Wed Jun 3 2026 .OVERNIGHT...West winds 5 to 10 knots becoming southwest. Waves 1 foot or less. .THURSDAY...Southwest winds 5 to 15 knots. Waves 2 feet or less. .THURSDAY NIGHT...Southwest winds 5 to 15 knots. Waves 1 to 3 feet. .FRIDAY...Southwest winds 5 to 15 knots increasing to 15 to 20 knots. Waves 1 to 3 feet building to 2 to 4 feet. .FRIDAY NIGHT...Southwest winds 15 to 20 knots. Showers likely overnight. Waves 2 to 4 feet. .SATURDAY...Southwest winds 15 to 20 knots becoming northwest 5 to 15 knots. Showers with a chance of thunderstorms. Waves 1 to 3 feet. .SUNDAY...North winds 5 to 10 knots becoming northeast. A chance of showers during the day. Waves 2 feet or less. .MONDAY...East winds 5 to 15 knots. Waves 1 to 3 feet. Winds and waves higher in and near thunderstorms. $$ LOZ063>065-040900- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1003 PM EDT Wed Jun 3 2026 .OVERNIGHT...Southwest winds 5 to 10 knots. Waves 1 to 2 feet. .THURSDAY...Southwest winds 5 to 10 knots. Waves 2 feet or less. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Waves 2 feet or less. .FRIDAY...Southwest winds 5 to 15 knots. Waves 2 feet or less. .FRIDAY NIGHT...Southwest winds 10 to 15 knots. A chance of showers overnight. Waves 1 to 3 feet. .SATURDAY...Southwest winds 5 to 15 knots becoming northwest. Showers likely. Waves 1 to 3 feet. .SUNDAY...North winds 5 to 15 knots becoming east. A chance of showers during the day. Waves 2 feet or less. .MONDAY...East winds 5 to 10 knots becoming southeast. Waves 2 feet or less. Winds and waves higher in and near thunderstorms. $$ LOZ061-040900- MAFOR 0403/ ONTARIO WEST 1/2 14500 11500 13510. Waves 2 feet or less overnight and Thursday. Waves 1 to 3 feet Thursday evening. ONTARIO EAST 1/2 16500. Waves 2 feet or less. $$