FZUS61 KBUF 121502

GLFSL 



Forecast for the Saint Lawrence River

including the Thousand Islands Region

National Weather Service Buffalo NY

1002 AM EST Fri Dec 12 2025



SLZ022-122200-

Saint Lawrence River from Cape Vincent to Ogdensburg-

1002 AM EST Fri Dec 12 2025



.REST OF TODAY...West winds 10 to 15 knots. Partly sunny. 

.TONIGHT...West winds 10 knots or less becoming south. A chance

of snow showers late in the evening. Lake effect snow showers

likely after midnight. 

.SATURDAY...South winds 10 to 15 knots becoming southwest. Lake

effect snow. 

.SATURDAY NIGHT...West winds 5 to 15 knots diminishing to less

than 10 knots. Lake effect snow showers likely in the evening,

then a chance of snow showers overnight. 

.SUNDAY...Northwest winds 5 to 10 knots. A chance of snow showers

during the day. 

.MONDAY...West winds 10 knots or less becoming southwest. A

chance of snow showers during the day, then snow showers likely

Monday night. 

.TUESDAY...Southwest winds 10 knots or less becoming south 10 to

15 knots. A chance of snow showers during the day. 



$$



SLZ024-122200-

Saint Lawrence River from Ogdensburg to Saint Regis-

1002 AM EST Fri Dec 12 2025



.REST OF TODAY...West winds 5 to 10 knots. Partly sunny late this

morning, then becoming mostly cloudy. 

.TONIGHT...West winds 10 knots or less becoming south. A chance

of snow showers late. 

.SATURDAY...South winds 5 to 15 knots becoming southwest. Lake

effect snow in the morning, then lake effect snow showers likely

in the afternoon. 

.SATURDAY NIGHT...Southwest winds 5 to 15 knots diminishing to

less than 10 knots. Lake effect snow showers likely in the

evening. 

.SUNDAY...West winds 5 to 10 knots. Mostly cloudy. 

.MONDAY...West winds 5 to 10 knots becoming southwest. A chance

of snow showers during the day, then snow showers likely Monday

night. 

.TUESDAY...Southwest winds 5 to 15 knots becoming south 15 to

20 knots. A chance of snow showers Tuesday night. 



$$