546
FZUS61 KBUF 150202
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM 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 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, before deepening to 29.6 inches as it
passes across New England Sunday. Meanwhile, a weak 29.9 inch high
will slide across the Great Lakes Sunday.

LOZ062-150900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EDT Tue Jul 14 2026

.OVERNIGHT...West winds 15 to 20 knots. Waves 3 to 5 feet
subsiding to 2 to 4 feet.
.WEDNESDAY...West winds 5 to 10 knots. Areas of smoke. Waves 1 to
3 feet subsiding to 1 foot or less.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots becoming west.
Areas of smoke in the evening. Waves 1 to 2 feet.
.THURSDAY...West winds 5 to 15 knots. Waves 2 feet or less.
.THURSDAY NIGHT...Northwest winds 5 to 15 knots becoming
northeast. Waves 1 to 3 feet.
.FRIDAY...Northeast winds 5 to 10 knots becoming southeast. A
chance of showers Friday night. Waves 1 foot or less.
.SATURDAY...Southeast winds 5 to 15 knots becoming northwest.
Showers likely with a chance of thunderstorms. Waves 2 feet or
less.
.SUNDAY...North winds 10 knots or less becoming west. A chance of
showers during the day. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-150900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EDT Tue Jul 14 2026

.OVERNIGHT...West winds 15 to 20 knots. Patchy smoke late.
Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally
around 9 feet.
.WEDNESDAY...West winds 10 to 15 knots. Areas of smoke. Waves
3 to 5 feet subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots. Patchy smoke in the
evening. Waves 1 to 3 feet.
.THURSDAY...West winds 5 to 15 knots increasing to 15 to
20 knots. Waves 2 feet or less building to 2 to 4 feet.
.THURSDAY NIGHT...West winds 15 to 20 knots becoming northeast
5 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY...Northeast winds 5 to 10 knots becoming south. A chance
of showers Friday night. Waves 2 feet or less.
.SATURDAY...Southeast winds 5 to 15 knots becoming west. Showers
likely with a chance of thunderstorms. Waves 2 feet or less.
.SUNDAY...North winds 5 to 15 knots becoming west. A chance of
showers during the day. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-150900-
MAFOR 1503/
ONTARIO WEST 1/2 12620 11610 13600 11700 11710. Waves 3 to 5 feet
subsiding to 2 to 4 feet overnight. Waves 1 to 3 feet Wednesday
and Wednesday evening.

ONTARIO EAST 1/2 12620 11610 12600 13610. Waves 3 to 6 feet
overnight. Waves 3 to 5 feet subsiding to 1 to 3 feet Wednesday.
Waves 1 to 3 feet Wednesday evening.

$$