Great Lakes Forecast
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000
FZUS61 KBUF 211745
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
145 PM EDT Mon May 21 2018

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 30.3 inch high across the lower Great Lakes will drift off the
southern New England coast tonight. A weak 29.9 inch low will then
move across Lake Erie late tonight and across New York Tuesday. A
30.1 inch high will then build into the Great Lakes Wednesday and
Thursday before drifting off the southern New England coast
Friday.

LOZ062-212115-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
145 PM EDT Mon May 21 2018

.THIS AFTERNOON...West winds less than 10 knots. Waves 1 foot or
less.
.TONIGHT...Northeast winds 5 to 15 knots becoming east. Showers
developing after midnight. Waves 1 foot or less building to 1 to
3 feet.
.TUESDAY...East winds 15 to 20 knots becoming north 5 to
15 knots. Showers in the morning. Waves 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds 10 knots or less becoming west.
Waves 1 to 2 feet.
.WEDNESDAY...West winds 5 to 15 knots becoming north. Waves 1 to
3 feet.
.THURSDAY...Light and variable winds becoming southwest 5 to
10 knots. Waves 1 foot or less.
.FRIDAY...Southwest winds 10 to 15 knots. Waves 1 to 2 feet.

$$

LOZ063>065-212115-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
145 PM EDT Mon May 21 2018

.THIS AFTERNOON...West winds 5 to 10 knots. Waves 1 foot or less.
.TONIGHT...Southeast winds 10 knots or less becoming east 10 to
15 knots. Showers developing late along with a chance of
thunderstorms. Waves 1 foot or less.
.TUESDAY...East winds 15 to 20 knots becoming north and
diminishing to 5 to 10 knots. Showers in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots becoming west.
Waves 2 feet or less.
.WEDNESDAY...West winds 10 to 15 knots becoming north 5 to
10 knots. Waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.THURSDAY...North winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.FRIDAY...Southwest winds 10 to 15 knots. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-212115-
MAFOR 2118 AMD/
ONTARIO WEST 1/2 11600 11700 11200 11210 11216 11226 11220. A
chance of thunderstorms overnight. Waves 1 foot or less this
afternoon. Waves 1 foot or less building to 1 to 3 feet tonight.
Waves 2 to 4 feet Tuesday morning.

ONTARIO EAST 1/2 11600 11500 12300 11206 11216 11226. A chance of
thunderstorms overnight. Waves 1 foot or less this afternoon and
tonight. Waves 1 to 3 feet Tuesday morning.

$$



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