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.

33°F

1°C

Humidity	NA
Wind Speed	E 0 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

14 Miles WSW Trinity WA

Flood Watch December 10, 12:54am until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 10, 12:54am until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 31 °F⇑
Rain/Snow
Wednesday
High: 39 °F
Heavy Rain
Wednesday Night
Low: 29 °F
Rain/Snow
Thursday
High: 33 °F
Heavy Snow
Thursday Night
Low: 30 °F
Snow
Friday
High: 34 °F
Rain/Snow
Friday Night
Low: 33 °F
Rain/Snow
Likely then
Chance
Rain/Snow
Saturday
High: 36 °F
Chance
Rain/Snow

Detailed Forecast

Overnight

Rain, possibly mixed with snow, becoming all rain after 1am. The rain could be heavy at times. Temperature rising to around 37 by 4am. West wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 39. West wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts in excess of 4 inches possible.

Wednesday Night

Snow, possibly mixed with rain. The rain and snow could be heavy at times. Low around 29. West wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Thursday

Snow. The snow could be heavy at times. High near 33. West wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Thursday Night

Snow. Low around 30. Northwest wind around 9 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday

Snow, possibly mixed with rain. High near 34. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Friday Night

Rain and snow likely before 1am, then a chance of rain between 1am and 4am, then a chance of rain and snow after 4am. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. Little or no snow accumulation expected.

Saturday

A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.

Saturday Night

Rain likely before 1am, then rain, possibly mixed with snow. Low around 32. Chance of precipitation is 80%.

Sunday

Rain and snow, becoming all snow after 7am. High near 32. Chance of precipitation is 80%.

Sunday Night

Rain and snow. Low around 31. Chance of precipitation is 80%.

Monday

Rain and snow. The rain could be heavy at times. High near 33. Chance of precipitation is 90%.

Monday Night

Rain and snow. The snow could be heavy at times. Low around 29. Chance of precipitation is 100%.