Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

NCSB (NCSW1)

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

32°F

0°C

Humidity	100%
Wind Speed	E 1 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	08 Dec 03:06 AM PST

More Information:

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

Extended Forecast for

20 Miles NNE Mazama WA

Overnight
Low: 23 °F
Snow Likely
Monday
High: 30 °F
Heavy Snow
Monday Night
Low: 22 °F
Heavy Snow
and Breezy
Tuesday
High: 24 °F
Chance Snow
and Breezy
then Snow
Tuesday Night
Low: 22 °F
Heavy Snow
Wednesday
High: 28 °F
Heavy Snow
Wednesday Night
Low: 24 °F
Snow
Thursday
High: 28 °F
Snow Likely
Thursday Night
Low: 26 °F
Snow Likely

Detailed Forecast

Overnight

Snow likely, mainly before 4am. Mostly cloudy, with a low around 23. West wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

Monday

Snow, mainly after 7am. The snow could be heavy at times. High near 30. Southwest wind around 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Monday Night

Snow, mainly before 1am. The snow could be heavy at times. Low around 22. Breezy, with a west wind 20 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Tuesday

Snow, mainly after 4pm. High near 24. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Tuesday Night

Snow. The snow could be heavy at times. Low around 22. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Wednesday

Snow. The snow could be heavy at times. High near 28. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Wednesday Night

Snow. Low around 24. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Thursday

Snow likely. Mostly cloudy, with a high near 28. Chance of precipitation is 70%.

Thursday Night

Snow likely. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.

Friday

A 50 percent chance of snow. Mostly cloudy, with a high near 31.

Friday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 26.