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 >

Current conditions at

NCSB (NCSW1)

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

35°F

2°C

Humidity	100%
Wind Speed	NNW 3 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Last update	09 Dec 09:06 PM PST

More Information:

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

Extended Forecast for

4 Miles NNW Winthrop WA

Tonight
Low: 33 °F⇑
Snow then
Rain/Snow
Wednesday
High: 43 °F
Rain
Wednesday Night
Low: 35 °F
Rain
Thursday
High: 41 °F
Rain Likely
Thursday Night
Low: 32 °F
Chance
Rain/Snow
Friday
High: 41 °F
Chance
Rain/Snow
then Chance
Rain
Friday Night
Low: 32 °F
Chance Rain
then Slight
Chance
Rain/Snow
Saturday
High: 37 °F
Slight Chance
Rain/Snow
then Slight
Chance Rain
Saturday Night
Low: 31 °F
Chance Rain

Detailed Forecast

Tonight

Snow before 1am, then rain, possibly mixed with snow between 1am and 2am, then rain after 2am. Temperature rising to around 36 by 4am. Calm wind. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.

Wednesday

Rain. High near 43. Light north wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday Night

Rain. Low around 35. Northwest wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain likely, mainly before 10am. Partly sunny, with a high near 41. West wind 6 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

A chance of rain and snow. Mostly cloudy, with a low around 32. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%. Little or no snow accumulation expected.

Friday

A chance of rain and snow before 10am, then a chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 40%. Little or no snow accumulation expected.

Friday Night

A chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%. Little or no snow accumulation expected.

Saturday

A slight chance of rain and snow before 10am, then a slight chance of rain. Partly sunny, with a high near 37. Chance of precipitation is 20%.

Saturday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 31.

Sunday

A 50 percent chance of rain. Mostly cloudy, with a high near 39.

Sunday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 30.

Monday

Rain. High near 36. Chance of precipitation is 80%.

Monday Night

Rain. Low around 31. Chance of precipitation is 90%.