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

DRY CRK (DCCW1)

Lat: 45.94361°NLon: 121.9875°WElev: 2697.0ft.

45°F

7°C

Humidity	100%
Wind Speed	NNW 3 MPH
Barometer	NA
Dewpoint	45°F (7°C)
Visibility	NA
Last update	07 Dec 12:25 PM PST

More Information:

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

Extended Forecast for

9 Miles NNE Mount St Helens WA

Flood Watch December 8, 04:00am until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

This Afternoon
High: 42 °F
Rain
Tonight
Low: 38 °F
Rain Likely
Monday
High: 45 °F
Heavy Rain
and Breezy
Monday Night
Low: 35 °F
Rain/Snow and
Breezy
Tuesday
High: 44 °F
Rain/Snow
Tuesday Night
Low: 39 °F
Heavy Rain
and Breezy
Wednesday
High: 45 °F
Heavy Rain
Wednesday Night
Low: 41 °F
Heavy Rain
Thursday
High: 45 °F
Rain

Detailed Forecast

This Afternoon

Rain, mainly before 5pm. Snow level 6300 feet lowering to 5700 feet. High near 42. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Rain likely before 4am, then a chance of rain after 5am. Snow level 5000 feet. Mostly cloudy, with a low around 38. West wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

Rain. The rain could be heavy at times. High near 45. Breezy, with a south southwest wind 10 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Monday Night

Rain before 10pm, then rain, possibly mixed with snow. The rain could be heavy at times. Low around 35. Breezy, with a west southwest wind 14 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tuesday

Rain, possibly mixed with snow. Snow level 4400 feet rising to 6100 feet in the afternoon. High near 44. South wind around 6 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Tuesday Night

Rain. The rain could be heavy at times. Low around 39. Breezy. Chance of precipitation is 100%.

Wednesday

Rain. The rain could be heavy at times. High near 45. Chance of precipitation is 100%.

Wednesday Night

Rain. The rain could be heavy at times. Cloudy, with a low around 41.

Thursday

Rain. Mostly cloudy, with a high near 45.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.

Friday

A chance of rain. Mostly cloudy, with a high near 48.