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

17 Miles ESE 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: 44 °F
Heavy Rain
and Windy
Tonight
Low: 36 °F
Very Windy.
Heavy Rain
then
Rain/Snow
Tuesday
High: 45 °F
Rain/Snow
Tuesday Night
Low: 40 °F
Heavy Rain
and Windy
Wednesday
High: 46 °F
Heavy Rain
and Windy
Wednesday Night
Low: 43 °F
Rain and
Breezy
Thursday
High: 45 °F
Rain and
Breezy
Thursday Night
Low: 44 °F
Chance Rain

Detailed Forecast

This Afternoon

Rain. The rain could be heavy at times. High near 44. Windy, with a west southwest wind around 22 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Tonight

Rain before 4am, then rain, possibly mixed with snow. The rain could be heavy at times. Low around 36. Very windy, with a west southwest wind 26 to 30 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Tuesday

Rain, possibly mixed with snow, becoming all rain after 1pm. Snow level 4100 feet rising to 8500 feet in the afternoon. High near 45. North northeast wind 6 to 9 mph becoming south 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. Low around 40. Windy, with a west southwest wind 11 to 16 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 41 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. Windy, with a west southwest wind 23 to 28 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 43. Breezy. Chance of precipitation is 100%.

Thursday

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

Thursday Night

A chance of rain. Mostly cloudy, with a low around 44.

Friday

A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 45.

Friday Night

A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 40.

Saturday

A chance of rain. Partly sunny, with a high near 44.