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.

49°F

9°C

Humidity	100%
Wind Speed	SSE 12 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Wind Chill	44°F (7°C)
Last update	08 Dec 09:52 AM PST

More Information:

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

Extended Forecast for

6 Miles N 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
Today
High: 49 °F
Heavy Rain
and Breezy
Tonight
Low: 37 °F
Heavy Rain
and Windy
Tuesday
High: 48 °F
Rain/Snow
then Rain
Tuesday Night
Low: 42 °F
Heavy Rain
and Breezy
Wednesday
High: 49 °F
Heavy Rain
and Breezy
Wednesday Night
Low: 46 °F
Heavy Rain
Thursday
High: 49 °F
Rain
Thursday Night
Low: 44 °F
Rain Likely

Detailed Forecast

Today

Rain. The rain could be heavy at times. High near 49. Breezy, with a southwest wind 17 to 20 mph, with gusts as high as 33 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 37. Windy, with a southwest wind 17 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Tuesday

Rain, possibly mixed with snow, becoming all rain after 9am. Snow level 3900 feet rising to 7300 feet in the afternoon. High near 48. Northwest wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tuesday Night

Rain. The rain could be heavy at times. Low around 42. Breezy, with a southwest wind 14 to 18 mph, with gusts as high as 34 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. Breezy, with a southwest wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. The rain could be heavy at times. 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 40.

Saturday

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