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

Stevens Pass - Tye Mill (STS54)

Lat: 47.73163°NLon: 121.0853°WElev: 5180.0ft.

32°F

0°C

Humidity	NA
Wind Speed	W 27 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Wind Chill	18°F (-8°C)
Last update	NA

More Information:

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

Extended Forecast for

10 Miles WNW Plain WA

Flood Watch December 8, 11:57pm until December 11, 04:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 8, 11:57pm until December 11, 04:00pm
NOW until 4:00pm Thu
Flood Watch
Tonight
Low: 32 °F
Rain/Snow
Tuesday
High: 38 °F
Chance Snow
then Heavy
Snow
Tuesday Night
Low: 33 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 43 °F
Rain then
Rain/Snow
Wednesday Night
Low: 36 °F
Rain/Snow
then Rain
Thursday
High: 41 °F
Rain/Snow
Thursday Night
Low: 36 °F
Rain/Snow
Likely
Friday
High: 43 °F
Chance
Rain/Snow

Detailed Forecast

Tonight

Rain and snow, becoming all snow after 2am. The snow could be heavy at times. Low around 32. West wind around 16 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.

Tuesday

A chance of snow before 10am, then snow after 1pm. The snow could be heavy at times. High near 38. West wind 11 to 16 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Tuesday Night

Snow before 9pm, then rain and snow between 9pm and 10pm, then rain after 10pm. The rain and snow could be heavy at times. Temperature rising to around 40 by 3am. Light and variable wind becoming west 5 to 9 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Wednesday

Rain before 4pm, then rain, possibly mixed with snow. High near 43. West wind around 11 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain, possibly mixed with snow, becoming all rain after 7pm. Low around 36. West wind around 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow. High near 41. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday Night

Rain likely, possibly mixed with snow, mainly before 10pm. Mostly cloudy, with a low around 36. Chance of precipitation is 60%. Little or no snow accumulation expected.

Friday

A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 43. Chance of precipitation is 40%.

Friday Night

A 30 percent chance of rain. Mostly cloudy, with a low around 37.

Saturday

A 40 percent chance of rain. Partly sunny, with a high near 43.

Saturday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 35. Chance of precipitation is 70%.

Sunday

Rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 70%.

Sunday Night

Rain and snow likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.