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

Hydrologic Outlook

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

35°F

2°C

Humidity	97%
Wind Speed	N 1 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Last update	08 Dec 12:06 PM PST

More Information:

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

Extended Forecast for

10 Miles E Twisp WA

This Afternoon
High: 38 °F
Rain/Snow
Tonight
Low: 32 °F
Rain/Snow
Tuesday
High: 37 °F
Chance Snow
Tuesday Night
Low: 31 °F
Snow
Wednesday
High: 38 °F
Rain/Snow
Likely
Wednesday Night
Low: 32 °F
Rain/Snow
Likely
Thursday
High: 38 °F
Chance
Rain/Snow
Thursday Night
Low: 33 °F
Chance
Rain/Snow
Friday
High: 39 °F
Mostly Cloudy
then Slight
Chance Rain

Detailed Forecast

This Afternoon

Rain and snow, becoming all rain after 1pm. High near 38. South wind 6 to 8 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Rain, possibly mixed with snow, mainly before 1am. Low around 32. West wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday

A 30 percent chance of snow after 10am. Increasing clouds, with a high near 37. West wind 6 to 10 mph. New snow accumulation of less than one inch possible.

Tuesday Night

Snow. Low around 31. West wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Wednesday

Rain and snow likely before 10am, then rain likely between 10am and 4pm, then rain likely, possibly mixed with snow after 4pm. Mostly cloudy, with a high near 38. West wind around 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain and snow likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Thursday

A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Thursday Night

A chance of rain and snow, mainly before 10pm. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

Friday

A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 39.

Friday Night

A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 33.

Saturday

A slight chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 20%.

Saturday Night

A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.

Sunday

A chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 30%.