Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Flood Watch in effect from December 8, 10:00 AM PST until December 12, 04:00 AM PST

Current conditions at

DRY CRK (DCCW1)

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

50°F

10°C

Humidity	95%
Wind Speed	SW 9 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Wind Chill	46°F (8°C)
Last update	08 Dec 02:25 PM PST

More Information:

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

Extended Forecast for

13 Miles NNE Mount St Helens WA

Flood Watch until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until December 12, 04:00am
NOW until 4:00am Fri
Flood Watch
This Afternoon
High: 43 °F
Heavy Rain
and Windy
Tonight
Low: 33 °F
Heavy Rain
and Very
Windy then
Rain/Snow and
Windy
Tuesday
High: 43 °F
Snow then
Rain/Snow
Tuesday Night
Low: 38 °F
Heavy Rain
and Windy
Wednesday
High: 45 °F
Heavy Rain
and Windy
then
Rain/Snow and
Breezy
Wednesday Night
Low: 41 °F
Breezy.
Rain/Snow
then Rain
Thursday
High: 43 °F
Rain/Snow
Thursday Night
Low: 41 °F
Rain/Snow
Likely

Detailed Forecast

This Afternoon

Rain. The rain could be heavy at times. High near 43. Windy, with a southwest wind around 23 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tonight

Rain before 3am, then rain and snow. The rain could be heavy at times. Snow level 8300 feet lowering to 5500 feet after midnight . Low around 33. Very windy, with a southwest wind 23 to 31 mph, with gusts as high as 43 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 8500 feet in the afternoon. High near 43. West southwest wind 6 to 8 mph becoming north in the morning. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Tuesday Night

Rain. The rain could be heavy at times. Low around 38. Windy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday

Rain before 1pm, then rain, possibly mixed with snow. The rain could be heavy at times. High near 45. Windy, with a southwest wind 16 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain, possibly mixed with snow, becoming all rain after 7pm. Low around 41. Breezy. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow. Snow level 6600 feet rising to 7500 feet in the afternoon. High near 43. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Rain and snow likely, mainly before 10pm. Snow level 7000 feet. Mostly cloudy, with a low around 41.

Friday

A chance of rain. Snow level 6800 feet. Mostly cloudy, with a high near 43.

Friday Night

A slight chance of rain. Snow level 6600 feet. Mostly cloudy, with a low around 38.

Saturday

A chance of rain. Snow level 6300 feet. Partly sunny, with a high near 41.

Saturday Night

Rain and snow likely. Snow level 5900 feet. Mostly cloudy, with a low around 35.

Sunday

Snow, possibly mixed with rain. Mostly cloudy, with a high near 37.