695
FZUS61 KBUF 201435
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1035 AM EDT Mon May 20 2024

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 30.0 inch area of high pressure along the Carolinas
will hold firm along the coast through Tuesday then drift out to
sea Tuesday night. A 29.2 inch low near Lake Superior Wednesday
morning will send a cold front across the lake Wednesday night
into Thursday. A 30.0 inch high over the Upper Mississippi valley
on Thursday will build across the Great Lakes region Thursday
night and Friday.

LOZ062-202115-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1035 AM EDT Mon May 20 2024

.THIS AFTERNOON...Southwest winds 10 knots or less becoming
northeast. Waves 1 foot or less.
.TONIGHT...East winds 5 to 10 knots becoming light and variable.
Waves 1 foot or less.
.TUESDAY...South winds 10 knots or less becoming southwest 10 to
15 knots. Waves 2 feet or less.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots becoming south.
Waves 1 to 2 feet.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest. A
chance of showers and thunderstorms during the day, then showers
likely with a chance of thunderstorms Wednesday night. Waves 1 to
3 feet.
.THURSDAY...Southwest winds 15 to 20 knots becoming west and
diminishing to around 10 knots. Showers likely during the day.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY...West winds 5 to 10 knots becoming north. Waves 1 to
2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-202115-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1035 AM EDT Mon May 20 2024

.THIS AFTERNOON...Southwest winds less than 10 knots becoming
north. Waves 1 foot or less.
.TONIGHT...Southeast winds 10 knots or less becoming south. Waves
1 foot or less.
.TUESDAY...South winds 10 knots or less. Waves 1 foot or less.
.TUESDAY NIGHT...South winds 5 to 15 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 5 to 15 knots becoming southwest. A
chance of showers and thunderstorms during the day, then showers
likely with a chance of thunderstorms Wednesday night. Waves
2 feet or less.
.THURSDAY...Southwest winds 10 to 15 knots becoming west. Showers
likely during the day. Waves 1 to 3 feet building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.FRIDAY...West winds 5 to 15 knots becoming north. Waves 1 to
3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-202115-
MAFOR 2015/
ONTARIO WEST 1/2 11700 11100 11200 12300 12400 11500. Waves 1
foot or less.

ONTARIO EAST 1/2 11600 11700 11100 11300 14400. Waves 1 foot or
less.

$$