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 4 MPH
Barometer	29.82 in (1009.82 mb)
Dewpoint	44°F (7°C)
Visibility	1.25 mi
Wind Chill	42°F (6°C)
Last update	08 Dec 05:28 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
This Afternoon
High: 42 °F
Heavy Rain
Tonight
Low: 30 °F
Rain/Snow
Tuesday
High: 36 °F
Snow Likely
then
Rain/Snow
Tuesday Night
Low: 33 °F
Rain/Snow
then Heavy
Rain
Wednesday
High: 41 °F
Rain/Snow
Wednesday Night
Low: 37 °F
Rain/Snow
Thursday
High: 38 °F
Rain/Snow
Thursday Night
Low: 38 °F
Rain/Snow
Likely

Detailed Forecast

This Afternoon

Rain. The rain could be heavy at times. High near 42. West wind around 18 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Rain before 10pm, then snow, possibly mixed with rain. The rain and snow could be heavy at times. Low around 30. Northwest wind 17 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Tuesday

Snow before 4pm, then snow, possibly mixed with rain. The rain and snow could be heavy at times. High near 36. West wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain and snow could be heavy at times. Low around 33. Southeast wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Wednesday

Rain before 10am, then rain, possibly mixed with snow. The rain could be heavy at times. High near 41. West wind 13 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday Night

Rain, possibly mixed with snow. Low around 37. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday

Rain and snow. High near 38. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Rain likely, possibly mixed with snow, mainly before 10pm. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.

Friday

A chance of rain and snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.

Friday Night

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

Saturday

A chance of rain. Partly sunny, with a high near 41.