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.

light snow,freezing fog

30°F

-1°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	30.0 in (1015.92 mb)
Dewpoint	30°F (-1°C)
Visibility	0.50 mi
Last update	09 Dec 03:01 AM PST

More Information:

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

Extended Forecast for

11 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
Overnight
Low: 35 °F
Rain/Snow
Tuesday
High: 43 °F
Chance
Rain/Snow
then
Rain/Snow
Tuesday Night
Low: 39 °F⇑
Rain/Snow
then Heavy
Rain
Wednesday
High: 50 °F
Heavy Rain
Wednesday Night
Low: 43 °F
Rain
Thursday
High: 48 °F
Rain
Thursday Night
Low: 42 °F
Rain Likely
Friday
High: 50 °F
Chance Rain

Detailed Forecast

Overnight

Rain, possibly mixed with snow, mainly before 4am. The rain could be heavy at times. Low around 35. Northwest wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.

Tuesday

A chance of rain and snow before 10am, then rain between 10am and 4pm, then rain, possibly mixed with snow after 4pm. High near 43. Northwest wind around 5 mph becoming calm in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday Night

Rain, possibly mixed with snow, becoming all rain after 10pm. The rain could be heavy at times. Temperature rising to around 46 by 4am. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain. The rain could be heavy at times. High near 50. West wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Wednesday Night

Rain. Low around 43. West wind around 7 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

Thursday

Rain. High near 48. Chance of precipitation is 90%.

Thursday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

Friday

A 40 percent chance of rain. Mostly cloudy, with a high near 50.

Friday Night

A 30 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 40.

Saturday

A chance of rain, mainly after 10am. Partly sunny, with a high near 50.

Saturday Night

Rain likely. Mostly cloudy, with a low around 39.