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.

46°F

8°C

Humidity	100%
Wind Speed	ENE 1 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Last update	08 Dec 09:25 AM PST

More Information:

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

Extended Forecast for

10 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
Today
High: 41 °F
Heavy Rain
and Windy
Tonight
Low: 32 °F
Heavy Rain
and Very
Windy then
Rain/Snow and
Windy
Tuesday
High: 42 °F
Snow then
Rain/Snow
Tuesday Night
Low: 38 °F
Heavy Rain
and Windy
Wednesday
High: 43 °F
Heavy Rain
and Breezy
Wednesday Night
Low: 41 °F
Rain and
Breezy
Thursday
High: 42 °F
Rain
Thursday Night
Low: 41 °F
Rain Likely

Detailed Forecast

Today

Rain. The rain could be heavy at times. High near 41. Windy, with a southwest wind 20 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tonight

Rain before 1am, then rain and snow. The rain could be heavy at times. Snow level 8400 feet lowering to 5400 feet after midnight . Low around 32. Very windy, with a southwest wind 21 to 30 mph becoming west northwest after midnight. Winds could gust as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Tuesday

Snow before 1pm, then rain, possibly mixed with snow. Snow level rising to 7000 feet in the afternoon. High near 42. West wind 8 to 10 mph becoming south in the morning. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Rain. The rain could be heavy at times. Low around 38. Windy, with a southwest wind 17 to 24 mph, with gusts as high as 38 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. Breezy, with a west southwest wind 15 to 21 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 41. Breezy. Chance of precipitation is 100%.

Thursday

Rain. High near 42. Chance of precipitation is 90%.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 41.

Friday

A chance of rain. Partly sunny, with a high near 43.

Friday Night

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

Saturday

A chance of rain. Snow level 6500 feet. Partly sunny, with a high near 42.