Station List

National Weather Service Marine Forecast FZUS61 KBUF

FZUS61 KBUF 131512
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1012 AM EST Tue Jan 13 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 29.3 inch low will move from western Ontario to southern Quebec through Wednesday. This system will push its trailing cold front across the lake Wednesday night, when a secondary 29.4 inch coastal low will develop along the mid-Atlantic coastline. The secondary low will then track northeast to the Gulf of Maine Thursday and to Newfoundland Friday, while 30.0 inch high pressure slowly builds east across the Great Lakes. A 29.8 inch low and attendant cold fronts will then slide across the Great Lakes Saturday.

LOZ062-132215
Lake Ontario open waters from the Niagara River to Hamlin Beach
1012 AM EST Tue Jan 13 2026

THIS AFTERNOON
Southwest winds 15 to 20 knots becoming south and increasing to 30 knots. A chance of rain showers late. Waves 2 to 4 feet building to 4 to 7 feet. Waves occasionally around 9 feet.

TONIGHT
Southwest winds to 30 knots. Rain showers likely early, then a chance of rain showers late in the evening. Waves 5 to 9 feet. Waves occasionally around 11 feet.

WEDNESDAY
Southwest winds 15 to 25 knots becoming west. A chance of rain showers in the morning, then a chance of snow and rain showers in the afternoon. Waves 4 to 7 feet subsiding to 3 to 5 feet. Waves occasionally around 9 feet.

WEDNESDAY NIGHT
Northwest winds 20 to 25 knots. Snow showers likely. Waves 3 to 6 feet.

THURSDAY
Northwest winds 15 to 25 knots becoming west. Snow showers likely during the day, then a chance of snow showers Thursday night. Waves 3 to 6 feet.

FRIDAY
Southwest winds 15 to 25 knots. A chance of snow showers. Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally around 9 feet.

SATURDAY
Southwest winds 20 to 25 knots. A chance of snow showers. Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally around 9 feet.

LOZ063>065-132215
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence River
1012 AM EST Tue Jan 13 2026

THIS AFTERNOON
South winds 15 to 20 knots. A chance of rain showers late. Waves 3 to 5 feet subsiding to 2 to 4 feet.

TONIGHT
South winds 15 to 25 knots becoming southwest. Rain showers likely in the evening. A chance of rain showers late. Waves 3 to 5 feet building to 5 to 8 feet. Waves occasionally around 10 feet.

WEDNESDAY
Southwest winds 15 to 25 knots becoming west. Rain showers likely in the morning, then rain showers likely with a chance of snow showers in the afternoon. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally around 9 feet.

WEDNESDAY NIGHT
West winds 15 to 25 knots becoming northwest. Snow and rain showers in the evening, then snow showers overnight. Waves 2 to 4 feet building to 4 to 7 feet. Waves occasionally around 9 feet.

THURSDAY
Northwest winds 15 to 25 knots becoming west. Snow showers likely during the day, then a chance of snow showers Thursday night. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally around 9 feet.

FRIDAY
Southwest winds 15 to 25 knots. A chance of snow showers. Waves 3 to 6 feet building to 4 to 7 feet. Waves occasionally around 9 feet.

SATURDAY
Southwest winds 20 to 25 knots. A chance of snow showers. Waves 3 to 6 feet building to 5 to 8 feet. Waves occasionally around 10 feet.

LOZ061-132215
MAFOR 1316/ ONTARIO WEST 1/2 11420 11430 12540 14530. A chance of rain showers this afternoon, this evening, and Wednesday morning. Waves 2 to 4 feet building to 4 to 7 feet, and occasionally around 9 feet this afternoon. Waves 5 to 9 feet, and occasionally around 11 feet tonight. Waves 4 to 7 feet subsiding to 3 to 6 feet, and occasionally around 9 feet Wednesday morning.

ONTARIO EAST 1/2 11410 11420 11430 14530 11520. A chance of rain showers this afternoon, this evening, and Wednesday morning. Waves 3 to 5 feet subsiding to 2 to 4 feet this afternoon. Waves 3 to 6 feet building to 5 to 8 feet, and occasionally around 10 feet tonight. Waves 4 to 7 feet subsiding to 3 to 6 feet, and occasionally around 9 feet Wednesday morning.