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.

48°F

9°C

Humidity	94%
Wind Speed	SW 9 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Wind Chill	44°F (7°C)
Last update	09 Dec 02:25 AM 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 9, 02:48am until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 02:48am until December 12, 04:00am
NOW until 4:00am Fri
Flood Watch
Overnight
Low: 33 °F
Rain/Snow and
Breezy
Tuesday
High: 41 °F
Snow Likely
then
Rain/Snow
Tuesday Night
Low: 37 °F⇑
Heavy Rain
and Windy
Wednesday
High: 43 °F
Heavy Rain
and Windy
Wednesday Night
Low: 40 °F
Rain and
Breezy
Thursday
High: 42 °F
Rain then
Rain/Snow
Thursday Night
Low: 39 °F
Rain/Snow
Likely then
Chance Rain
Friday
High: 42 °F
Chance Rain

Detailed Forecast

Overnight

Rain before 3am, then snow, possibly mixed with rain. The rain and snow could be heavy at times. Snow level 6100 feet lowering to 5000 feet. Low around 33. Breezy, with a west northwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of around an inch possible.

Tuesday

Snow likely before noon, then rain and snow likely between noon and 1pm, then rain after 1pm. Snow level rising to 8400 feet in the afternoon. High near 41. Northwest wind around 7 mph becoming south southwest in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Tuesday Night

Rain. The rain could be heavy at times. Temperature rising to around 42 by 11pm. Windy, with a southwest wind 17 to 25 mph, with gusts as high as 39 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 43. 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.

Wednesday Night

Rain. Low around 40. Breezy, with a west southwest wind 18 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain before 4pm, then rain likely, possibly mixed with snow. High near 42. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

Rain likely, possibly mixed with snow, becoming all rain after 7pm. Mostly cloudy, with a low around 39. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday

A chance of rain. Snow level 6800 feet. Mostly cloudy, with a high near 42.

Friday Night

A chance of rain, mainly before 10pm. Snow level 6400 feet. Mostly cloudy, with a low around 36.

Saturday

A chance of rain, mainly after 10am. Snow level 6100 feet. Partly sunny, with a high near 42.

Saturday Night

Rain and snow. Snow level 5800 feet. Mostly cloudy, with a low around 36.

Sunday

Rain and snow. Snow level 5100 feet. Mostly cloudy, with a high near 36.

Sunday Night

Rain and snow. Snow level 5400 feet. Mostly cloudy, with a low around 35.