Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Flood Watch until December 12, 04:00 AM PST

Current conditions at

DRY CRK (DCCW1)

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

49°F

9°C

Humidity	92%
Wind Speed	SW 7 MPH
Barometer	NA
Dewpoint	47°F (8°C)
Visibility	NA
Wind Chill	46°F (8°C)
Last update	08 Dec 07:25 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, 08:16pm until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 8, 08:16pm until December 12, 04:00am
NOW until 4:00am Fri
Flood Watch
Tonight
Low: 35 °F
Breezy. Heavy
Rain then
Rain/Snow
Tuesday
High: 45 °F
Rain/Snow
Tuesday Night
Low: 41 °F⇑
Heavy Rain
and Breezy
Wednesday
High: 46 °F
Heavy Rain
Wednesday Night
Low: 44 °F
Rain
Thursday
High: 45 °F
Rain
Thursday Night
Low: 42 °F
Rain Likely
then Chance
Rain
Friday
High: 47 °F
Chance Rain

Detailed Forecast

Tonight

Rain before 4am, then rain, possibly mixed with snow. The rain could be heavy at times. Snow level 8200 feet lowering to 5800 feet after midnight . Low around 35. Breezy, with a southwest wind 13 to 21 mph becoming west northwest after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.

Tuesday

Rain, possibly mixed with snow, becoming all rain after 2pm. Snow level rising to 8500 feet in the afternoon. High near 45. North northwest wind around 6 mph becoming south southeast in the afternoon. 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. Temperature rising to around 46 by 3am. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 32 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 46. Southwest wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 44. West southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain. High near 45. Chance of precipitation is 90%.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

Friday

A chance of rain. Mostly cloudy, with a high near 47.

Friday Night

A slight chance of rain. Mostly cloudy, with a low around 38.

Saturday

A chance of rain, mainly after 10am. Partly sunny, with a high near 45.

Saturday Night

Rain likely. Snow level 5900 feet. Mostly cloudy, with a low around 38.