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Hurricane Symbol Storm Special! View the latest observations near Atlantic Tropical Storm Isaias.

National Weather Service Marine Forecast FZUS61 KBUF

FZUS61 KBUF 031053
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
653 AM EDT Mon Aug 3 2020

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 29.6 inch low across eastern Quebec this morning
will exit into the Canadian Maritimes this afternoon. A 30.2 inch
high will build into the Western Great Lakes and Upper Plains
tonight through Wednesday. Meanwhile, Tropical Storm Isaias will
track along the eastern seaboard. A 30.3 inch high will then build
across the Great Lakes on Thursday.

LOZ062-031515-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
653 AM EDT Mon Aug 3 2020

TODAY
West winds 15 to 20 knots becoming northeast and
diminishing to less than 10 knots this afternoon. A chance of
showers and thunderstorms this afternoon. Waves 3 to 5 feet
subsiding to 2 feet or less.

TONIGHT
East winds 5 to 10 knots becoming southeast. A chance
of showers and thunderstorms early, then showers likely with a
chance of thunderstorms late in the evening. Showers likely after
midnight. Waves 1 foot or less.

TUESDAY
South winds less than 10 knots. Showers likely in the
morning, then showers likely with a chance of thunderstorms in
the afternoon. Waves 1 foot or less.

TUESDAY NIGHT
Northwest winds 5 to 15 knots. Showers likely
with a chance of thunderstorms in the evening, then a chance of
showers and thunderstorms overnight. Waves 1 to 3 feet.

WEDNESDAY
Northwest winds 5 to 15 knots becoming west. A
chance of showers during the day. Waves 1 to 3 feet.

THURSDAY
West winds 10 knots or less becoming southwest. Waves
2 feet or less.

FRIDAY
Northeast winds less than 10 knots becoming south.
Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.



LOZ063>065-031515-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
653 AM EDT Mon Aug 3 2020

TODAY
West winds 15 to 25 knots becoming northwest and
diminishing to 5 to 10 knots. A chance of waterspouts this
morning. A chance of showers early. A chance of thunderstorms
late. Waves 6 to 9 feet subsiding to 1 to 3 feet. Waves
occasionally around 11 feet.

TONIGHT
East winds 5 to 10 knots becoming southeast. A chance
of showers and thunderstorms in the evening, then a chance of
showers after midnight. Waves 2 feet or less.

TUESDAY
South winds 5 to 15 knots. Showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
Waves 2 feet or less.

TUESDAY NIGHT
Southwest winds 5 to 15 knots becoming
northwest. Showers likely with a chance of thunderstorms. Waves
1 to 3 feet.

WEDNESDAY
Northwest winds 15 to 20 knots becoming west 10 to
15 knots. A chance of showers during the day. Waves 2 to 4 feet
subsiding to 1 to 3 feet.

THURSDAY
West winds 5 to 10 knots becoming southwest. Waves
2 feet or less.

FRIDAY
Southwest winds less than 10 knots becoming south.
Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.



LOZ061-031515-
MAFOR 0309/
ONTARIO WEST 1/2 11630 11620 11600 11800 11200 11300 12306. A
chance of thunderstorms this afternoon and evening. Waves 5 to 8
feet subsiding to 1 to 3 feet, and occasionally around 10 feet
today. Waves 1 foot or less tonight.

ONTARIO EAST 1/2 11630 11620 11610 11600 11800 12200 11300. A
chance of waterspouts this morning. A chance of showers and
thunderstorms this evening, then a chance of showers overnight.
Waves 6 to 10 feet subsiding to 1 to 3 feet, and occasionally
around 13 feet today. Waves 2 feet or less tonight.