127
FZUS61 KBUF 132002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Sun Jul 13 2025

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 near James Bay will lift north into
northern Quebec, while slowly dragging its trailing cold front
across the lake tonight. A 30.1 inch high will slowly drift from the
Upper Midwest to New England Monday through Wednesday, then a 29.7
inch low will track northeastward across the Great Lakes and into
Quebec Wednesday night and Thursday.

LOZ062-140300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Sun Jul 13 2025

.TONIGHT...Southwest winds 10 knots or less becoming northwest.
Waves 2 feet or less.
.MONDAY...Light and variable winds. Waves 1 foot or less.
.MONDAY NIGHT...South winds 10 knots or less becoming west. Waves
1 foot or less.
.TUESDAY...West winds less than 10 knots becoming east. Waves
1 foot or less.
.TUESDAY NIGHT...Southeast winds 10 knots or less becoming
southwest. Waves 1 foot or less.
.WEDNESDAY...Southwest winds 10 knots or less. A chance of
showers during the day, then a chance of showers and
thunderstorms Wednesday night. Waves 2 feet or less.
.THURSDAY...Southwest winds 10 to 15 knots becoming west. A
chance of showers and thunderstorms. Waves 1 to 2 feet.
.FRIDAY...West winds 5 to 10 knots becoming north. A chance of
showers. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-140300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Sun Jul 13 2025

.TONIGHT...South winds 5 to 10 knots becoming southwest. Showers
likely with a chance of thunderstorms early, then a chance of
showers and thunderstorms. Some thunderstorms may produce gusty
winds this evening. Waves 2 feet or less.
.MONDAY...Southwest winds 10 knots or less. Waves 1 foot or less.
.MONDAY NIGHT...South winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.TUESDAY...Southwest winds less than 10 knots becoming west.
Waves 1 foot or less.
.TUESDAY NIGHT...South winds 10 knots or less. Waves 1 foot or
less.
.WEDNESDAY...South winds 5 to 10 knots. A chance of showers and
thunderstorms. Waves 2 feet or less.
.THURSDAY...Southwest winds 5 to 15 knots becoming west. Showers
likely with a chance of thunderstorms. Waves 1 to 2 feet.
.FRIDAY...West winds 5 to 15 knots becoming north. A chance of
showers. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-140300-
MAFOR 1321/
ONTARIO WEST 1/2 12500 11600 11700 12600 12300. Waves 2 feet or
less.

ONTARIO EAST 1/2 12400 14500 12600. A chance of showers and
thunderstorms this evening. Waves 2 feet or less.

$$