Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Winter Storm Watch in effect from December 11, 01:00 AM EST until December 12, 07:00 AM EST

Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Overcast

32°F

0°C

Humidity	60%
Wind Speed	S 7 mph
Barometer	29.62 in
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	25°F (-4°C)
Last update	10 Dec 2:35 am EST

More Information:

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

Extended Forecast for

5 Miles S Alton NY

Winter Storm Watch December 11, 01:00am until December 12, 07:00am

Click here for hazard details and duration

Winter Storm Watch

Overnight
Low: 32 °F
Snow Showers
Likely
Wednesday
High: 39 °F
Rain/Snow
then
Rain/Snow
Likely
Wednesday Night
Low: 21 °F
Rain/Snow
Likely then
Snow Showers
Thursday
High: 27 °F
Snow Showers
and Patchy
Blowing Snow
Thursday Night
Low: 22 °F
Snow Showers
Likely
Friday
High: 32 °F
Chance Snow
Showers
Friday Night
Low: 20 °F
Mostly Cloudy
then Chance
Snow Showers
Saturday
High: 31 °F
Chance Snow
Showers
Saturday Night
Low: 19 °F
Snow Showers
Likely

Detailed Forecast

Overnight

Snow showers likely, mainly after 5am. Cloudy, with a steady temperature around 32. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

Wednesday

Rain and snow, becoming all rain after 1pm. High near 39. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Wednesday Night

Rain likely, possibly mixed with snow showers before 9pm, then snow showers likely, possibly mixed with rain between 9pm and 10pm, then snow showers after 10pm. Low around 21. West wind 7 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Thursday

Snow showers. Patchy blowing snow between 11am and noon. High near 27. West wind 16 to 18 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow showers likely, mainly before 1am. Mostly cloudy, with a low around 22. West wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

Friday

A chance of snow showers before 1pm. Mostly cloudy, with a high near 32. West wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Friday Night

A chance of snow showers after 1am. Mostly cloudy, with a low around 20. South wind around 6 mph. Chance of precipitation is 40%.

Saturday

A chance of snow showers. Mostly cloudy, with a high near 31. West wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

Saturday Night

Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.

Sunday

A chance of snow showers. Mostly cloudy, with a high near 25. Chance of precipitation is 50%.

Sunday Night

Mostly cloudy, with a low around 13.

Monday

Mostly cloudy, with a high near 25.