889
FZUS61 KBUF 132002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Sun Sep 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 29.2 inch low will move east across northern Quebec
tonight, with a trailing cold front moving away from the lake. A
30.2 inch high will then build from the upper Great Lakes Monday
morning to the lower Great Lakes and New England Monday night, then
off the New England coast by Tuesday. A 29.4 inch low is then
forecast to move from northwest Ontario province Tuesday to northern
Quebec Wednesday. A trailing cold front will cross the lower Great
Lakes Wednesday, then stall over the Ohio Valley and Pennsylvania
through Thursday.

LOZ062-140300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Sun Sep 13 2026

.TONIGHT...West winds 15 to 20 knots becoming northwest. Waves
1 to 3 feet building to 3 to 5 feet.
.MONDAY...North winds 5 to 15 knots becoming west. Waves 2 to
4 feet subsiding to 1 foot or less.
.MONDAY NIGHT...West winds 10 knots or less becoming south. Waves
1 foot or less.
.TUESDAY...South winds 5 to 15 knots. Waves 2 feet or less.
.TUESDAY NIGHT...South winds 5 to 10 knots becoming southwest. A
chance of showers. Waves 2 feet or less.
.WEDNESDAY...West winds 10 knots or less becoming northeast. A
chance of showers. Waves 1 foot or less.
.THURSDAY...Northeast winds 5 to 10 knots becoming north. A
chance of showers during the day. Waves 2 feet or less.
.FRIDAY...North winds 5 to 10 knots becoming east. A chance of
showers Friday night. Waves 2 feet or less.

$$

LOZ063>065-140300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Sun Sep 13 2026

.TONIGHT...West winds 15 to 25 knots becoming northwest. Waves
1 to 3 feet building to 3 to 6 feet.
.MONDAY...North winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. Waves 3 to 5 feet subsiding to 1 to
3 feet.
.MONDAY NIGHT...Northwest winds 5 to 10 knots becoming south.
Waves 2 feet or less.
.TUESDAY...South winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots. A chance of showers
overnight. Waves 2 to 4 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming northeast
10 knots or less. A chance of showers. Waves 1 to 3 feet
subsiding to 1 foot or less.
.THURSDAY...Northeast winds 5 to 15 knots becoming north. A
chance of showers. Waves 2 feet or less.
.FRIDAY...North winds 5 to 15 knots becoming east. A chance of
showers Friday night. Waves 2 feet or less.

$$

LOZ061-140300-
MAFOR 1321/
ONTARIO WEST 1/2 11610 13720 11820 11810 11710 11600. Waves 1 to
3 feet building to 3 to 6 feet tonight. Waves 2 to 4 feet
subsiding to 1 foot or less Monday.

ONTARIO EAST 1/2 11610 11630 12720 12820 11810 11700. Waves 1 to
3 feet building to 3 to 6 feet tonight. Waves 3 to 5 feet
subsiding to 1 to 3 feet Monday.

$$