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

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

rain,mist

44°F

7°C

Humidity	100%
Wind Speed	WSW 10 MPH
Barometer	29.81 in (1009.48 mb)
Dewpoint	44°F (7°C)
Visibility	1.25 mi
Wind Chill	39°F (4°C)
Last update	08 Dec 05:56 PM PST

More Information:

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

Extended Forecast for

10 Miles N Roslyn WA

Flood Watch until December 12, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until December 12, 07:00am
NOW until 7:00am Fri
Flood Watch
Tonight
Low: 29 °F
Rain/Snow and
Windy
Tuesday
High: 35 °F
Heavy Snow
Tuesday Night
Low: 32 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 40 °F
Rain/Snow and
Breezy
Wednesday Night
Low: 34 °F
Rain/Snow
Thursday
High: 38 °F
Snow then
Rain/Snow
Likely
Thursday Night
Low: 36 °F
Rain/Snow
Likely
Friday
High: 38 °F
Chance
Rain/Snow

Detailed Forecast

Tonight

Rain before 10pm, then rain, possibly mixed with snow between 10pm and 1am, then snow after 1am. The rain and snow could be heavy at times. Low around 29. Windy, with a northwest wind 26 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.

Tuesday

Snow, mainly after 1pm. The snow could be heavy at times. High near 35. West wind 6 to 16 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain and snow could be heavy at times. Temperature falling to near 32 by 8pm, then rising to around 40 during the remainder of the night. Southeast wind 7 to 12 mph becoming west 13 to 18 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Wednesday

Rain and snow. The rain could be heavy at times. High near 40. Breezy, with a west wind 16 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain and snow. Low around 34. West wind around 18 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday

Snow before 1pm, then rain and snow likely. High near 38. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Rain and snow likely, 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. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.

Friday Night

A chance of rain and snow before 7pm, then a chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

Saturday

Rain likely, possibly mixed with snow, mainly after 4pm. Partly sunny, with a high near 39.

Saturday Night

Rain and snow likely. Mostly cloudy, with a low around 30.

Sunday

Snow likely. Mostly cloudy, with a high near 33.

Sunday Night

Snow likely. Mostly cloudy, with a low around 31.