####018003456####
FZUS61 KBUF 280220

GLFLO 



Open Lake Forecast for Lake Ontario

National Weather Service Buffalo NY

1020 PM EDT Sat Apr 27 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 29.6 inch low will track from the central Plains 

Sunday to Lake Superior by Monday evening...then to Ontario 

Province on Tuesday. A cold front trailing from the low will cross

the lake on Tuesday...with a 29.9 inch bubble of high pressure 

then forecast to slide across the lake Tuesday night and 

Wednesday.



LOZ062-280915-

Lake Ontario open waters from the Niagara River to Hamlin Beach-

1020 PM EDT Sat Apr 27 2024



.OVERNIGHT...South winds 15 to 20 knots becoming southwest

10 to 15 knots. Waves 1 to 2 feet. 

.SUNDAY...Southwest winds 10 to 15 knots. Showers likely with a

chance of thunderstorms from late morning on. Waves 1 to 3 feet. 

.SUNDAY NIGHT...West winds 5 to 15 knots becoming northeast. A

chance of showers. Waves 2 feet or less. 

.MONDAY...East winds 10 to 15 knots increasing to 15 to 20 knots.

A chance of showers in the morning. Waves 2 to 4 feet. 

.MONDAY NIGHT...East winds 15 to 20 knots diminishing to 10 to

15 knots. Showers likely. Waves 2 to 4 feet. 

.TUESDAY...East winds 5 to 10 knots becoming north. Showers

likely during the day, then a chance of showers Tuesday night.

Waves 2 feet or less. 

.WEDNESDAY...South winds 5 to 10 knots becoming southwest. Waves

1 foot or less. 

.THURSDAY...Southwest winds 5 to 10 knots becoming southeast. A

chance of showers. Waves 1 foot or less. 



Winds and waves higher in and near thunderstorms.



$$



LOZ063>065-280915-

Lake Ontario open waters from Hamlin Beach to the Saint Lawrence

River-

1020 PM EDT Sat Apr 27 2024



.OVERNIGHT...South winds 15 to 20 knots. Waves 2 to 4 feet

subsiding to 1 to 3 feet. 

.SUNDAY...South winds 15 to 20 knots becoming west 10 to

15 knots. A chance of showers late in the morning. Showers likely

with a chance of thunderstorms in the afternoon. Waves 1 to

3 feet. 

.SUNDAY NIGHT...West winds 5 to 15 knots becoming northeast.

Showers likely with a chance of thunderstorms in the evening,

then a chance of showers overnight. Waves 1 to 3 feet. 

.MONDAY...Northeast winds 15 to 20 knots diminishing to 10 to

15 knots. A chance of showers in the morning. Waves 2 to 4 feet

subsiding to 1 to 3 feet. 

.MONDAY NIGHT...Northeast winds 5 to 10 knots becoming east. A

chance of showers in the evening, then showers likely overnight.

Waves 2 feet or less. 

.TUESDAY...East winds 5 to 10 knots becoming northwest. Showers

likely with a chance of thunderstorms. Waves 2 feet or less. 

.WEDNESDAY...Northwest winds 5 to 10 knots becoming southwest.

Waves 1 foot or less. 

.THURSDAY...Southwest winds 5 to 10 knots becoming southeast. A

chance of showers. Waves 2 feet or less. 



Winds and waves higher in and near thunderstorms.



$$



LOZ061-280915-

MAFOR 2803/

ONTARIO WEST 1/2 11410 13510 12516 11600 11700. A chance of

thunderstorms Sunday afternoon. Waves 1 to 3 feet. 



ONTARIO EAST 1/2 13420 11410 11510 11516 11606 11600. A chance of

thunderstorms Sunday afternoon. Waves 1 to 3 feet. 



$$



Hitchcock

####018001250####
FZUS61 KBUF 280220

GLFSL 



Forecast for the Saint Lawrence River

including the Thousand Islands Region

National Weather Service Buffalo NY

1020 PM EDT Sat Apr 27 2024



SLZ022-024-280915-

Saint Lawrence River from Cape Vincent to Saint Regis

1020 PM EDT Sat Apr 27 2024



.OVERNIGHT...South winds 5 to 15 knots. A chance of

showers. 

.SUNDAY...Southwest winds 5 to 15 knots. A chance of showers

through early afternoon, then showers likely with a chance of

thunderstorms late. 

.SUNDAY NIGHT...West winds 5 to 10 knots becoming north. Showers

likely with a chance of thunderstorms in the evening, then a

chance of showers overnight. 

.MONDAY...Northeast winds 5 to 10 knots. Mostly cloudy in the

morning, then becoming partly sunny. 

.MONDAY NIGHT...Northeast winds 5 to 10 knots. A chance of

showers in the evening, then showers likely overnight. 

.TUESDAY...Northeast winds 10 knots or less. Showers with a

chance of thunderstorms. 

.WEDNESDAY...North winds 10 knots or less becoming south. Partly

to mostly cloudy. 

.THURSDAY...Southwest winds 5 to 10 knots becoming south. A

chance of showers Thursday night. 



Winds and waves higher in and near thunderstorms.



$$



Hitchcock