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, 10:00 AM PST until December 12, 04:00 AM PST

Current conditions at

CASTLE ROCK (TR950)

Lat: 46.27139°NLon: 122.89194°WElev: 213.0ft.

48°F

9°C

Humidity	100%
Wind Speed	ESE 1 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	08 Dec 04:09 AM PST

More Information:

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

Extended Forecast for

17 Miles S Mossyrock WA

Flood Watch December 8, 10:00am until December 12, 04:00am

Click here for hazard details and duration

Flood Watch

Overnight
Low: 43 °F
Chance Rain
Monday
High: 49 °F
Heavy Rain
and Breezy
Monday Night
Low: 39 °F
Heavy Rain
and Breezy
Tuesday
High: 50 °F
Rain
Tuesday Night
Low: 45 °F
Heavy Rain
Wednesday
High: 50 °F
Rain
Wednesday Night
Low: 48 °F
Rain
Thursday
High: 50 °F
Rain
Thursday Night
Low: 47 °F
Rain Likely

Detailed Forecast

Overnight

A 40 percent chance of rain, mainly after 5am. Cloudy, with a low around 43. South wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.

Monday

Rain. The rain could be heavy at times. High near 49. Breezy, with a south wind 13 to 15 mph, with gusts as high as 31 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 39. Breezy, with a south southwest wind 11 to 20 mph becoming north after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tuesday

Rain. Snow level 3800 feet rising to 7600 feet in the afternoon. High near 50. East southeast wind 3 to 5 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Tuesday Night

Rain. The rain could be heavy at times. Low around 45. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday

Rain. High near 50. Chance of precipitation is 100%.

Wednesday Night

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

Thursday

Rain. Cloudy, with a high near 50.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 47.

Friday

A chance of rain. Mostly cloudy, with a high near 49.

Friday Night

A slight chance of rain. Mostly cloudy, with a low around 43.