Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Flood Advisory until December 11, 11:45 AM PST

Current conditions at

NCSB (NCSW1)

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

40°F

4°C

Humidity	98%
Wind Speed	N 2 MPH
Barometer	NA
Dewpoint	39°F (4°C)
Visibility	NA
Last update	11 Dec 05:06 AM PST

More Information:

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

Extended Forecast for

4 Miles NE Mazama WA

Flood Advisory December 11, 05:56am until December 11, 11:45am

Click here for hazard details and duration

Flood Advisory

Flood Advisory December 11, 05:56am until December 11, 11:45am
NOW until 11:45am Thu
Flood Advisory
Overnight
Low: 32 °F
Snow Likely
Thursday
High: 35 °F
Snow Likely
then Slight
Chance Snow
Thursday Night
Low: 31 °F⇑
Chance Snow
then Chance
Rain/Snow
Friday
High: 39 °F
Chance
Rain/Snow
Friday Night
Low: 33 °F
Chance Rain
Saturday
High: 39 °F
Partly Sunny
Saturday Night
Low: 31 °F
Chance
Rain/Snow
then
Rain/Snow
Likely
Sunday
High: 36 °F
Rain/Snow
Likely then
Chance Rain

Detailed Forecast

Overnight

Snow likely. Mostly cloudy, with a low around 32. West wind around 16 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Thursday

Snow likely before 10am, then a slight chance of snow after 4pm. Mostly sunny, with a high near 35. Northwest wind 7 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Thursday Night

A chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a temperature rising to around 34 by 5am. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

Friday

A chance of rain and snow. Partly sunny, with a high near 39. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 50%. Little or no snow accumulation expected.

Friday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 33. West wind 5 to 7 mph.

Saturday

Partly sunny, with a high near 39.

Saturday Night

Rain and snow likely, mainly after 4am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. Little or no snow accumulation expected.

Sunday

Rain likely, possibly mixed with snow before 10am, then a chance of rain. Partly sunny, with a high near 36. Chance of precipitation is 60%.

Sunday Night

Rain likely, possibly mixed with snow, mainly after 10pm. Mostly cloudy, with a low around 32. Chance of precipitation is 70%.

Monday

Rain, possibly mixed with snow. High near 36. Chance of precipitation is 100%.