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

DEE FLAT (DEFO)

Lat: 45.58639°NLon: 121.64056°WElev: 1260.0ft.

56°F

13°C

Humidity	84%
Wind Speed	SSW 9 MPH
Barometer	NA
Dewpoint	51°F (11°C)
Visibility	NA
Last update	08 Dec 12:00 PM PST

More Information:

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

Extended Forecast for

7 Miles ESE Cascade Locks OR

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
Rain and Very
Windy
Tonight
Low: 37 °F
Heavy Rain
and Very
Windy
Tuesday
High: 46 °F
Rain/Snow and
Breezy
Tuesday Night
Low: 44 °F
Heavy Rain
and Very
Windy
Wednesday
High: 47 °F
Heavy Rain
and Very
Windy
Wednesday Night
Low: 44 °F
Rain and
Windy
Thursday
High: 46 °F
Rain and
Windy
Thursday Night
Low: 42 °F
Chance Rain

Detailed Forecast

This Afternoon

Rain. High near 44. Very windy, with a west southwest wind 29 to 31 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Tonight

Rain. The rain could be heavy at times. Low around 37. Very windy, with a west southwest wind 38 to 41 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Tuesday

Rain, possibly mixed with snow, becoming all rain after 1pm. The rain could be heavy at times. Snow level 6200 feet rising to 8300 feet in the afternoon. High near 46. Breezy, with a west southwest wind 13 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tuesday Night

Rain. The rain could be heavy at times. Low around 44. Very windy, with a west southwest wind 25 to 30 mph increasing to 32 to 37 mph after midnight. Winds could gust as high as 50 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. Very windy, with a west southwest wind 25 to 33 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 44. Windy. Chance of precipitation is 90%.

Thursday

Rain, mainly before 4pm. High near 46. Windy. Chance of precipitation is 80%.

Thursday Night

A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 42.

Friday

A slight chance of rain. Partly sunny, with a high near 46.

Friday Night

A slight chance of rain after 4am. Partly cloudy, with a low around 38.

Saturday

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