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 >

Hazardous Weather Conditions

Flood Watch until December 12, 07:00 AM PST

Current conditions at

Stevens Pass - Tye Mill (STS54)

Lat: 47.73163°NLon: 121.0853°WElev: 5180.0ft.

30°F

-1°C

Humidity	NA
Wind Speed	E 4 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Wind Chill	26°F (-3°C)
Last update	NA

More Information:

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

Extended Forecast for

9 Miles SW Trinity WA

Flood Watch December 9, 06:59pm until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 06:59pm until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Tonight
Low: 33 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 42 °F
Heavy Rain
Wednesday Night
Low: 35 °F
Heavy Rain
then
Rain/Snow
Thursday
High: 37 °F
Rain/Snow
Thursday Night
Low: 34 °F
Rain/Snow
Friday
High: 40 °F
Rain/Snow
Friday Night
Low: 36 °F
Rain Likely
Saturday
High: 38 °F
Chance Rain

Detailed Forecast

Tonight

Rain, possibly mixed with snow, becoming all rain after 11pm. The rain and snow could be heavy at times. Temperature rising to around 40 by 3am. Light and variable wind becoming south 5 to 9 mph in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 42. West wind 6 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.

Wednesday Night

Rain before 1am, then rain, possibly mixed with snow. The rain could be heavy at times. Low around 35. West wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow, becoming all snow after 1pm. High near 37. West wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow likely before 7pm, then rain and snow. Low around 34. West wind around 9 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday

Rain and snow, becoming all rain after 1pm. High near 40. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

Saturday

A 40 percent chance of rain. Partly sunny, with a high near 38.

Saturday Night

Rain, mainly after 10pm. Low around 34. Chance of precipitation is 80%.

Sunday

Rain, possibly mixed with snow. High near 36. Chance of precipitation is 80%.

Sunday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.