Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

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

Current conditions at

CANYON CREEK (CYFW1)

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

44°F

7°C

Humidity	100%
Wind Speed	SE 2 MPH
Barometer	NA
Dewpoint	44°F (7°C)
Visibility	NA
Last update	08 Dec 01:52 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 December 8, 04:00am until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Overnight
Low: 40 °F
Chance Rain
Monday
High: 48 °F
Heavy Rain
Monday Night
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

Overnight

A 40 percent chance of rain, mainly after 5am. Cloudy, with a low around 40. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

Monday

Rain. The rain could be heavy at times. High near 48. South southwest wind 7 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Monday Night

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. Chance of precipitation is 100%.

Wednesday Night

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

Thursday

Rain. Cloudy, with a high near 49.

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.