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

I84 WB at Cascade Locks MP44.57 (ODT78)

Lat: 45.66931°NLon: 121.88484°WElev: 194.0ft.

55°F

13°C

Humidity	91%
Wind Speed	SW 3 MPH
Barometer	NA
Dewpoint	53°F (12°C)
Visibility	NA
Last update	08 Dec 02:35 PM PST

More Information:

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

Extended Forecast for

7 Miles SSE 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: 49 °F
Heavy Rain
and Breezy
Tonight
Low: 41 °F
Heavy Rain
and Windy
Tuesday
High: 50 °F
Rain/Snow
then Rain
Tuesday Night
Low: 46 °F
Heavy Rain
and Windy
Wednesday
High: 49 °F
Rain and
Windy
Wednesday Night
Low: 48 °F
Rain and
Breezy
Thursday
High: 49 °F
Rain
Thursday Night
Low: 45 °F
Chance Rain

Detailed Forecast

This Afternoon

Rain. The rain could be heavy at times. High near 49. Breezy, with a west southwest wind around 21 mph, with gusts as high as 46 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 41. Windy, with a west southwest wind 23 to 26 mph, with gusts as high as 55 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 9am. High near 50. West wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tuesday Night

Rain. The rain could be heavy at times. Low around 46. Windy, with a west southwest wind 14 to 22 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Wednesday

Rain. High near 49. Windy, with a west southwest wind 17 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Wednesday Night

Rain. Low around 48. Breezy. Chance of precipitation is 90%.

Thursday

Rain, mainly before 4pm. High near 49. Chance of precipitation is 80%.

Thursday Night

A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 45.

Friday

A slight chance of rain. Partly sunny, with a high near 51.

Friday Night

Mostly cloudy, with a low around 42.

Saturday

A chance of rain. Partly sunny, with a high near 50.