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.

33°F

1°C

Humidity	100%
Wind Speed	SSE 0 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	08 Dec 06:06 AM PST

More Information:

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

Extended Forecast for

10 Miles SSW Twisp WA

Today
High: 38 °F
Rain/Snow
Tonight
Low: 32 °F
Rain/Snow
Tuesday
High: 35 °F
Chance Snow
Tuesday Night
Low: 33 °F
Snow then
Rain/Snow
Wednesday
High: 37 °F
Rain/Snow
Wednesday Night
Low: 33 °F
Rain/Snow
Likely then
Snow Likely
Thursday
High: 37 °F
Rain/Snow
Likely
Thursday Night
Low: 34 °F
Chance
Rain/Snow
Friday
High: 39 °F
Slight Chance
Rain/Snow
then Slight
Chance Rain

Detailed Forecast

Today

Snow before 11am, then rain, possibly mixed with snow between 11am and 1pm, then rain after 1pm. High near 38. Light and variable wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Rain, possibly mixed with snow before 1am, then a slight chance of snow between 1am and 4am. Low around 32. West wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tuesday

A 40 percent chance of snow, mainly after 10am. Increasing clouds, with a high near 35. West wind 6 to 8 mph. New snow accumulation of less than one inch possible.

Tuesday Night

Snow before 4am, then rain and snow. Low around 33. West wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Wednesday

Rain and snow, becoming all snow after 4pm. High near 37. West wind around 7 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow likely before 7pm, then rain and snow likely between 7pm and 10pm, then snow likely after 10pm. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Thursday

Snow likely before 10am, then rain and snow likely. Mostly cloudy, with a high near 37. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Thursday Night

A chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.

Friday

A slight chance of rain and snow before 10am, then a slight chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 20%.

Friday Night

A slight chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.

Saturday

A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.

Saturday Night

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

Sunday

A 40 percent chance of snow. Partly sunny, with a high near 36.