Great Lakes Forecast
Issued by NWS
Issued by NWS
880 FZUS61 KBUF 141402 GLFLO Open Lake Forecast for Lake Ontario National Weather Service Buffalo NY 1002 AM EDT Tue Jul 14 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 large 30.2 inch high will shift well off the New England coast today, with a warm front shifting east of the Lake this morning, while another 30.2 inch high shifts into the mid Mississippi and lower Ohio valleys. A cold front will cross the Lake late tonight into Wednesday morning, followed by a secondary cold front pushing south across the Lake Thursday night into Friday. A weak 29.8 inch low over the upper Great Lakes Friday, will move southeast into the lower Great Lakes on Saturday. LOZ062-142100- Lake Ontario open waters from the Niagara River to Hamlin Beach- 1002 AM EDT Tue Jul 14 2026 .THIS AFTERNOON...Southwest winds 15 to 20 knots. Waves 3 to 5 feet. .TONIGHT...Southwest winds 15 to 20 knots becoming west. Waves 3 to 6 feet subsiding to 2 to 4 feet. .WEDNESDAY...West winds 15 to 20 knots diminishing to 5 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. .WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming west. Waves 1 to 2 feet. .THURSDAY...West winds 5 to 15 knots becoming north. Waves 1 to 3 feet. .FRIDAY...Northeast winds 10 knots or less. A chance of showers Friday night. Waves 2 feet or less. .SATURDAY...East winds 5 to 15 knots becoming north. A chance of showers. Waves 2 feet or less. $$ LOZ063>065-142100- Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River- 1002 AM EDT Tue Jul 14 2026 .THIS AFTERNOON...Southwest winds 15 to 25 knots becoming west. Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally around 9 feet. .TONIGHT...West winds 15 to 25 knots. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally around 9 feet. .WEDNESDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet. .WEDNESDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet. .THURSDAY...West winds 5 to 10 knots becoming north 10 to 15 knots. Waves 2 feet or less building to 2 to 4 feet. .FRIDAY...North winds 5 to 15 knots becoming south. A chance of showers Friday night. Waves 2 feet or less. .SATURDAY...South winds 5 to 15 knots becoming west. A chance of showers. Waves 2 feet or less. $$ LOZ061-142100- MAFOR 1415/ ONTARIO WEST 1/2 13520 14620 11610. Waves 3 to 6 feet this afternoon and tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet Wednesday morning. ONTARIO EAST 1/2 11520 12630 14620 11610. Waves 3 to 6 feet building to 4 to 7 feet, and occasionally around 9 feet this afternoon. Waves 4 to 7 feet subsiding to 3 to 6 feet, and occasionally around 9 feet tonight. Waves 3 to 5 feet subsiding to 2 to 4 feet Wednesday morning. $$