####018003479####
FZUS61 KBUF 050233

GLFLO 



Open Lake Forecast for Lake Ontario

National Weather Service Buffalo NY

1033 PM EDT Sat May 4 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 remain in the vicinity of Hudson

Bay, with a cold front trailing this low crossing the lake Sunday

night. A 30.1 inch high will then build into the upper Great 

Lakes Sunday night and Monday before weakening and drifting to 

southern Quebec and New England Tuesday.



LOZ062-050930-

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

1033 PM EDT Sat May 4 2024



.REST OF TONIGHT...South winds 10 to 15 knots becoming southeast.

A chance of showers late this evening, then showers likely after

midnight. Periods of rain late. Waves 1 to 3 feet. 

.SUNDAY...Southeast winds 5 to 15 knots. Periods of rain in the

morning, then showers likely early in the afternoon. A chance of

showers late. Waves 1 to 3 feet subsiding to 1 foot or less. 

.SUNDAY NIGHT...East winds 10 knots or less becoming west. A

chance of showers in the evening. Waves 2 feet or less. 

.MONDAY...West winds 5 to 10 knots becoming southwest. Waves

2 feet or less. 

.MONDAY NIGHT...Southwest winds 10 knots or less becoming

northwest. Waves 1 foot or less. 

.TUESDAY...North winds less than 10 knots becoming east 10 to

15 knots. Showers likely Tuesday night. Waves 2 feet or less. 

.WEDNESDAY...Southeast winds 5 to 10 knots. Showers likely during

the day, then a chance of showers Wednesday night. Waves 2 feet

or less. 

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

likely. Waves 1 to 2 feet. 



$$



LOZ063>065-050930-

Lake Ontario open waters from Hamlin Beach to the Saint Lawrence

River-

1033 PM EDT Sat May 4 2024



.REST OF TONIGHT...Southeast winds 15 to 20 knots. A chance of

showers late this evening, then showers likely after midnight.

Periods of rain late. Waves 1 to 3 feet. 

.SUNDAY...Southeast winds 15 to 20 knots. Periods of rain through

early afternoon, then showers likely late. Waves 2 to 4 feet

subsiding to 1 to 3 feet. 

.SUNDAY NIGHT...Southeast winds 15 to 20 knots becoming west

10 to 15 knots. A chance of showers. Waves 1 to 3 feet. 

.MONDAY...West winds 5 to 15 knots. Waves 2 feet or less. 

.MONDAY NIGHT...Southwest winds 10 knots or less. Waves 1 foot or

less. 

.TUESDAY...South winds 10 knots or less becoming east. Showers

likely Tuesday night. Waves 2 feet or less. 

.WEDNESDAY...Southeast winds 5 to 10 knots. Showers likely with a

chance of thunderstorms during the day, then a chance of showers

and thunderstorms Wednesday night. Waves 2 feet or less. 

.THURSDAY...East winds 5 to 10 knots becoming southwest. Showers

likely. Waves 2 feet or less. 



Winds and waves higher in and near thunderstorms.



$$



LOZ061-050930-

MAFOR 0503/

ONTARIO WEST 1/2 11310 13316 11306 12300 11700. Waves 1 to 3 feet

overnight and Sunday. Waves 1 foot or less Sunday evening. 



ONTARIO EAST 1/2 11310 14326 12310 11410. A chance of showers

late this evening and Sunday evening. Waves 1 to 3 feet

overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet Sunday.

Waves 1 to 3 feet Sunday evening. 



$$

####018001113####
FZUS61 KBUF 050233

GLFSL 



Forecast for the Saint Lawrence River

including the Thousand Islands Region

National Weather Service Buffalo NY

1033 PM EDT Sat May 4 2024



SLZ022-024-050930-

Saint Lawrence River from Cape Vincent to Saint Regis

1033 PM EDT Sat May 4 2024



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

after midnight. Showers likely late. 

.SUNDAY...South winds 10 to 15 knots. Periods of rain through

early afternoon, then showers likely late. 

.SUNDAY NIGHT...South winds 5 to 10 knots becoming light and

variable. Showers likely in the evening, then a chance of showers

overnight. 

.MONDAY...Northwest winds 10 knots or less becoming west. A

chance of showers in the morning. 

.MONDAY NIGHT...Southwest winds 5 to 10 knots becoming light and

variable. Becoming mainly clear. 

.TUESDAY...Light and variable winds becoming east 5 to 10 knots.

A chance of showers Tuesday night. 

.WEDNESDAY...Northeast winds 10 knots or less. Showers likely. 

.THURSDAY...Northeast winds 5 to 10 knots becoming southeast.

Showers likely. 



$$