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 Watch until December 12, 07:00 AM PST

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

light rain,mist

35°F

2°C

Humidity	100%
Wind Speed	NW 5 MPH
Barometer	30.09 in (1018.96 mb)
Dewpoint	35°F (2°C)
Visibility	5.00 mi
Wind Chill	31°F (-1°C)
Last update	11 Dec 07:40 AM PST

More Information:

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

Extended Forecast for

5 Miles ENE Snoqualmie Pass WA

Flood Watch December 11, 07:51am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 11, 07:51am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Today
High: 38 °F
Rain/Snow
Tonight
Low: 35 °F
Rain/Snow
Likely then
Rain Likely
Friday
High: 40 °F
Rain Likely
Friday Night
Low: 34 °F
Chance Rain
Saturday
High: 45 °F
Mostly Sunny
Saturday Night
Low: 35 °F
Chance Rain
then Rain
Sunday
High: 39 °F
Rain then
Rain/Snow
Likely
Sunday Night
Low: 36 °F
Rain/Snow

Detailed Forecast

Today

Rain and snow. High near 38. West wind 9 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than one inch possible.

Tonight

Rain likely, possibly mixed with snow, becoming all rain after 10pm. Cloudy, with a low around 35. West wind around 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday

Rain likely. Mostly cloudy, with a high near 40. West wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 34. West wind 9 to 14 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Mostly sunny, with a high near 45. South wind around 7 mph.

Saturday Night

Rain, mainly after 4am. Low around 35. Chance of precipitation is 80%.

Sunday

Rain before 1pm, then rain likely, possibly mixed with snow. High near 39. Chance of precipitation is 80%. Little or no snow accumulation expected.

Sunday Night

Rain, possibly mixed with snow. Low around 36. Chance of precipitation is 80%.

Monday

Rain. High near 41. Chance of precipitation is 100%.

Monday Night

Rain and snow, becoming all snow after 10pm. Mostly cloudy, with a low around 30.