Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Flood Watch until December 11, 04:00 PM PST

Current conditions at

MANSON (MASW)

Lat: 47.91694°NLon: 120.12444°WElev: 1972.0ft.

43°F

6°C

Humidity	80%
Wind Speed	WNW 4 MPH
Barometer	NA
Dewpoint	37°F (3°C)
Visibility	NA
Wind Chill	41°F (5°C)
Last update	09 Dec 01:00 AM PST

More Information:

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

Extended Forecast for

12 Miles ESE Trinity WA

Flood Watch December 9, 02:19am until December 11, 04:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 9, 02:19am until December 11, 04:00pm
NOW until 4:00pm Thu
Flood Watch
Overnight
Low: 30 °F
Heavy Snow
Tuesday
High: 35 °F
Slight Chance
Snow
Tuesday Night
Low: 30 °F⇑
Rain/Snow
Wednesday
High: 40 °F
Heavy Rain
Wednesday Night
Low: 35 °F
Rain/Snow
Thursday
High: 38 °F
Rain/Snow
Thursday Night
Low: 33 °F
Chance
Rain/Snow
Friday
High: 40 °F
Chance
Rain/Snow

Detailed Forecast

Overnight

Snow, mainly before 4am. The snow could be heavy at times. Low around 30. West wind around 10 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.

Tuesday

A slight chance of snow before 7am, then a slight chance of snow after 1pm. Partly sunny, with a high near 35. West wind 8 to 13 mph becoming light in the afternoon. Chance of precipitation is 20%.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 2am. The rain and snow could be heavy at times. Temperature falling to near 30 by 9pm, then rising to around 39 during the remainder of the night. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Wednesday

Rain. The rain could be heavy at times. High near 40. West wind 7 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain and snow. Low around 35. West wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday

Rain and snow. High near 38. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Thursday Night

A chance of rain and snow before 7pm, then a chance of snow between 7pm and 1am, then a chance of rain and snow after 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Friday

A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.

Friday Night

A chance of rain before 10pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

Saturday

A chance of rain and snow, mainly after 10am. Partly sunny, with a high near 39. Chance of precipitation is 30%.

Saturday Night

Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

Sunday

Snow likely. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.

Sunday Night

Snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.