Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Flood Watch in effect from December 8, 10:00 AM PST until December 12, 04:00 AM PST

Current conditions at

CANYON CREEK (CYFW1)

Lat: 45.92944°NLon: 122.20278°WElev: 2592.0ft.

48°F

9°C

Humidity	100%
Wind Speed	SSE 11 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Wind Chill	43°F (6°C)
Last update	08 Dec 11:52 AM PST

More Information:

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

Extended Forecast for

8 Miles NNW Mount St Helens WA

Flood Watch until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until December 12, 04:00am
NOW until 4:00am Fri
Flood Watch
This Afternoon
High: 48 °F
Heavy Rain
Tonight
Low: 36 °F
Heavy Rain
and Breezy
Tuesday
High: 48 °F
Rain
Tuesday Night
Low: 42 °F
Heavy Rain
Wednesday
High: 49 °F
Heavy Rain
Wednesday Night
Low: 46 °F
Rain
Thursday
High: 49 °F
Rain
Thursday Night
Low: 44 °F
Rain Likely

Detailed Forecast

This Afternoon

Rain. The rain could be heavy at times. High near 48. Southwest wind around 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tonight

Rain. The rain could be heavy at times. Low around 36. Breezy, with a southwest wind 7 to 15 mph becoming west northwest after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Tuesday

Rain. Snow level 3700 feet rising to 7300 feet in the afternoon. High near 48. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tuesday Night

Rain. The rain could be heavy at times. Low around 42. Southwest wind 7 to 9 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 49. Southwest wind around 9 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 46. Chance of precipitation is 100%.

Thursday

Rain. High near 49. Chance of precipitation is 90%.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 44.

Friday

A chance of rain. Partly sunny, with a high near 51.

Friday Night

A slight chance of rain. Mostly cloudy, with a low around 39.

Saturday

A chance of rain. Partly sunny, with a high near 50.