Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Flood Watch in effect from December 8, 04:00 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.

53°F

12°C

Humidity	87%
Wind Speed	SW 4 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Last update	07 Dec 11:15 PM PST

More Information:

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

Extended Forecast for

2 Miles ENE Multnomah Falls OR

Flood Watch December 8, 04:00am until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Tonight
Low: 49 °F
Showers
Likely and
Breezy
Monday
High: 54 °F
Showers and
Windy
Monday Night
Low: 47 °F
Heavy Rain
and Windy
Tuesday
High: 54 °F
Rain
Tuesday Night
Low: 51 °F
Heavy Rain
and Windy
Wednesday
High: 55 °F
Heavy Rain
and Windy
Wednesday Night
Low: 52 °F
Rain and
Breezy
Thursday
High: 55 °F
Rain and
Breezy
Thursday Night
Low: 51 °F
Rain Likely

Detailed Forecast

Tonight

Showers likely. Mostly cloudy, with a low around 49. Breezy, with a west southwest wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

Showers before 10am, then rain after 10am. High near 54. Windy, with a southwest wind 22 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Monday Night

Rain. The rain could be heavy at times. Low around 47. Windy, with a southwest wind around 26 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

Tuesday

Rain. High near 54. South southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tuesday Night

Rain. The rain could be heavy at times. Low around 51. Windy, with a southwest wind 21 to 26 mph, with gusts as high as 39 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 55. Windy. Chance of precipitation is 100%.

Wednesday Night

Rain. Low around 52. Breezy. Chance of precipitation is 90%.

Thursday

Rain. Mostly cloudy, with a high near 55. Breezy.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 51.

Friday

A chance of rain, mainly before 10am. Partly sunny, with a high near 57.

Friday Night

A slight chance of rain. Mostly cloudy, with a low around 47.