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	WNW 1 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Last update	08 Dec 01:06 PM PST

More Information:

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

Extended Forecast for

9 Miles SE Twisp WA

This Afternoon
High: 35 °F
Rain/Snow
Tonight
Low: 29 °F
Rain then
Rain/Snow and
Breezy
Tuesday
High: 33 °F
Partly Sunny
then Snow
Likely
Tuesday Night
Low: 28 °F
Snow then
Rain/Snow
Wednesday
High: 37 °F
Rain/Snow
Likely
Wednesday Night
Low: 31 °F
Rain/Snow
Likely
Thursday
High: 36 °F
Chance Snow
then Chance
Rain/Snow
Thursday Night
Low: 29 °F
Slight Chance
Snow then
Mostly Cloudy
Friday
High: 35 °F
Mostly Cloudy
then Slight
Chance
Rain/Snow

Detailed Forecast

This Afternoon

Rain, possibly mixed with snow. High near 35. South wind 7 to 9 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

Tonight

Rain, mixing with snow after midnight, then gradually ending. Low around 29. Breezy, with a west wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday

Snow likely, mainly after 4pm. Increasing clouds, with a high near 33. West wind 12 to 17 mph becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Tuesday Night

Snow before 1am, then rain, possibly mixed with snow between 1am and 4am, then rain likely after 4am. Low around 28. South wind around 6 mph becoming southwest after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Wednesday

Rain likely before 10am, then rain likely, possibly mixed with snow. Mostly cloudy, with a high near 37. West wind around 9 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday

A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Thursday Night

A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 29.

Friday

A slight chance of rain and snow after 4pm. Mostly cloudy, with a high near 35. Chance of precipitation is 10%.

Friday Night

A slight chance of rain and snow before 10pm. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.

Saturday

A slight chance of rain and snow. Partly sunny, with a high near 34. Chance of precipitation is 20%.

Saturday Night

A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.

Sunday

A 40 percent chance of snow. Partly sunny, with a high near 34.