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.

44°F

7°C

Humidity	91%
Wind Speed	WSW 7 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Wind Chill	40°F (4°C)
Last update	07 Dec 09:25 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

Tonight
Low: 35 °F
Rain/Snow
Likely
Monday
High: 41 °F
Heavy Rain
and Windy
Monday Night
Low: 32 °F
Rain/Snow and
Windy
Tuesday
High: 41 °F
Rain/Snow
Tuesday Night
Low: 37 °F
Rain/Snow and
Breezy then
Heavy Rain
and Windy
Wednesday
High: 42 °F
Rain/Snow and
Breezy
Wednesday Night
Low: 38 °F
Rain/Snow
Thursday
High: 42 °F
Rain/Snow
Thursday Night
Low: 41 °F
Rain/Snow
Likely

Detailed Forecast

Tonight

Rain and snow showers likely before 4am, then a chance of snow showers between 4am and 5am, then a chance of rain and snow showers after 5am. Snow level 5000 feet. Mostly cloudy, with a low around 35. West southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Monday

Showers, mainly before 10am, then rain after 10am. The rain could be heavy at times. High near 41. Windy, with a southwest wind 17 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Monday Night

Rain before 10pm, then snow, possibly mixed with rain. The rain could be heavy at times. Snow level 7800 feet lowering to 6100 feet after midnight . Low around 32. Windy, with a west southwest wind 23 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Tuesday

Rain, possibly mixed with snow. Snow level rising to 6100 feet in the afternoon. High near 41. South southwest wind 7 to 9 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 7pm. The rain could be heavy at times. Low around 37. Windy, with a west southwest wind 17 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain, possibly mixed with snow. The rain could be heavy at times. Snow level 7000 feet. High near 42. Breezy. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain, possibly mixed with snow. The rain could be heavy at times. Low around 38. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow, becoming all rain after 1pm. Mostly cloudy, with a high near 42.

Thursday Night

Rain likely before 10pm, then a chance of rain and snow between 10pm and 1am, then a chance of rain after 1am. Mostly cloudy, with a low around 41.

Friday

A chance of rain. Mostly cloudy, with a high near 42.

Friday Night

A chance of rain. Snow level 6800 feet. Mostly cloudy, with a low around 36.

Saturday

Rain likely, possibly mixed with snow. Snow level 6400 feet. Mostly cloudy, with a high near 41.

Saturday Night

Rain and snow likely. Snow level 5900 feet. Mostly cloudy, with a low around 36.