Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Flood Watch until December 11, 04:00 PM PST

Current conditions at

Stevens Pass - Tye Mill (STS54)

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

39°F

4°C

Humidity	NA
Wind Speed	S 3 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

6 Miles W Trinity WA

Flood Watch December 8, 06:16pm until December 11, 04:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 8, 06:16pm until December 11, 04:00pm
NOW until 4:00pm Thu
Flood Watch
Tonight
Low: 23 °F
Heavy Snow
and Windy
Tuesday
High: 25 °F
Chance Snow
and Breezy
then Snow
Likely
Tuesday Night
Low: 25 °F⇑
Heavy Snow
Wednesday
High: 33 °F
Heavy Snow
and Breezy
Wednesday Night
Low: 27 °F
Heavy Snow
Thursday
High: 30 °F
Heavy Snow
Thursday Night
Low: 27 °F
Snow Likely
Friday
High: 32 °F
Snow Likely

Detailed Forecast

Tonight

Snow, mainly before 1am. The snow could be heavy at times. Low around 23. Windy, with a west wind 18 to 23 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 48 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 10 to 14 inches possible.

Tuesday

A chance of snow before 10am, then snow likely after 1pm. Mostly cloudy, with a steady temperature around 25. Breezy, with a west wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

Tuesday Night

Snow. The snow could be heavy at times. Temperature rising to around 33 by 2am. West wind 6 to 15 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

Wednesday

Snow. The snow could be heavy at times. High near 33. Breezy, with a west wind 14 to 20 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 27. West wind around 17 mph. Chance of precipitation is 90%. New snow accumulation of 10 to 14 inches possible.

Thursday

Snow. The snow could be heavy at times. High near 30. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Thursday Night

Snow likely. Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday

Snow likely, mainly before 10am. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.

Friday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 28.

Saturday

Snow likely, mainly after 4pm. Partly sunny, with a high near 31. Chance of precipitation is 60%.

Saturday Night

Snow. Low around 26. Chance of precipitation is 80%.