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 in effect from December 10, 11:49 PM PST 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

5 Miles NW Mazama WA

Flood Advisory until December 11, 11:45am

Click here for hazard details and duration

Flood Advisory

Flood Advisory until December 11, 11:45am
NOW until 11:45am Thu
Flood Advisory
Overnight
Low: 35 °F
Rain
Thursday
High: 40 °F
Rain/Snow
then Chance
Snow
Thursday Night
Low: 31 °F
Rain/Snow
Likely
Friday
High: 43 °F
Rain/Snow
Likely then
Rain Likely
Friday Night
Low: 36 °F
Chance Rain
Saturday
High: 44 °F
Slight Chance
Rain
Saturday Night
Low: 34 °F
Chance Rain
Sunday
High: 42 °F
Rain Likely

Detailed Forecast

Overnight

Rain. Low around 35. West wind around 11 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Thursday

Rain and snow before 7am, then a chance of snow. High near 40. Northwest wind 3 to 7 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow likely, possibly mixed with rain, mainly between 4am and 5am. Mostly cloudy, with a low around 31. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday

Rain likely, possibly mixed with snow, becoming all rain after 7am. Mostly cloudy, with a high near 43. Light west wind. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 36. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 10 percent chance of rain after 4pm. Mostly sunny, with a high near 44.

Saturday Night

A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 34.

Sunday

Rain likely. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.

Sunday Night

Rain. Low around 35. Chance of precipitation is 80%.

Monday

Rain. High near 42. Chance of precipitation is 100%.

Monday Night

Rain, possibly mixed with snow. Low around 30. Chance of precipitation is 90%.