Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Overcast

25°F

-4°C

Humidity	50%
Wind Speed	NW 3 mph
Barometer	30.33 in
Dewpoint	9°F (-13°C)
Visibility	10.00 mi
Last update	8 Dec 3:55 pm EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles SE Alton NY

Tonight
Low: 9 °F
Decreasing
Clouds
Tuesday
High: 31 °F
Mostly Sunny
then Snow
Showers
Likely
Tuesday Night
Low: 24 °F
Slight Chance
Snow Showers
then Snow
Likely
Wednesday
High: 39 °F
Rain/Snow
Wednesday Night
Low: 24 °F
Rain/Snow
Likely then
Snow
Thursday
High: 30 °F
Snow Showers
Thursday Night
Low: 20 °F
Snow Showers
Likely
Friday
High: 30 °F
Chance Snow
Showers
Friday Night
Low: 20 °F
Snow Showers
Likely

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around 9. Southwest wind around 6 mph becoming calm.

Tuesday

Snow showers likely, mainly after 4pm. Increasing clouds, with a high near 31. South wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Tuesday Night

A chance of snow showers between 7pm and 4am, then snow likely after 4am. Cloudy, with a low around 24. South wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday

Rain, possibly mixed with snow, becoming all rain after 1pm. High near 39. South wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain likely, possibly mixed with snow before 10pm, then snow. Low around 24. Northwest wind 9 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday

Snow showers. High near 30. West wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Thursday Night

Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 20. West wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

Friday

A chance of snow showers. Mostly cloudy, with a high near 30. West wind around 9 mph. Chance of precipitation is 40%.

Friday Night

Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.

Saturday

Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 60%.

Saturday Night

A chance of snow showers. Mostly cloudy, with a low around 17. Chance of precipitation is 40%.

Sunday

A chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 40%.

Sunday Night

Mostly cloudy, with a low around 14.