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.

48°F

9°C

Humidity	99%
Wind Speed	S 4 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Wind Chill	47°F (8°C)
Last update	08 Dec 11:25 AM PST

More Information:

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

Extended Forecast for

8 Miles NE 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: 46 °F
Heavy Rain
and Breezy
Tonight
Low: 36 °F
Breezy. Heavy
Rain then
Rain/Snow
Tuesday
High: 46 °F
Rain/Snow
Tuesday Night
Low: 41 °F
Heavy Rain
Wednesday
High: 47 °F
Heavy Rain
Wednesday Night
Low: 44 °F
Rain
Thursday
High: 47 °F
Rain
Thursday Night
Low: 43 °F
Rain Likely

Detailed Forecast

Today

Rain. The rain could be heavy at times. High near 46. Breezy, with a southwest wind around 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tonight

Rain before 2am, then rain, possibly mixed with snow. The rain could be heavy at times. Snow level 8300 feet lowering to 5600 feet after midnight . Low around 36. Breezy, with a southwest wind 13 to 21 mph becoming west northwest after midnight. Winds could gust as high as 40 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 3700 feet rising to 7000 feet in the afternoon. High near 46. West northwest wind around 6 mph becoming east southeast in the morning. 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 41. West southwest wind 10 to 14 mph, with gusts as high as 31 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 47. West southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 44. Chance of precipitation is 100%.

Thursday

Rain. High near 47. Chance of precipitation is 90%.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.

Friday

A chance of rain. Partly sunny, with a high near 48.

Friday Night

A slight chance of rain. Mostly cloudy, with a low around 39.

Saturday

A chance of rain. Partly sunny, with a high near 48.