Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

Stampede Pass (KSMP)

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

light rain,mist

37°F

3°C

Humidity	100%
Wind Speed	W 10 MPH
Barometer	30.1 in (1019.3 mb)
Dewpoint	37°F (3°C)
Visibility	2.50 mi
Wind Chill	30°F (-1°C)
Last update	08 Dec 01:42 AM PST

More Information:

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

Extended Forecast for

11 Miles E Snoqualmie Pass WA

Overnight
Low: 37 °F
Rain Likely
Monday
High: 48 °F
Heavy Rain
Monday Night
Low: 34 °F
Rain/Snow
Tuesday
High: 42 °F
Rain/Snow
Tuesday Night
Low: 37 °F
Rain/Snow
then Heavy
Rain
Wednesday
High: 49 °F
Heavy Rain
Wednesday Night
Low: 41 °F
Rain
Thursday
High: 47 °F
Rain
Thursday Night
Low: 42 °F
Rain Likely

Detailed Forecast

Overnight

Rain likely, mainly before 4am. Cloudy, with a low around 37. West wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

Rain, mainly after 7am. The rain could be heavy at times. High near 48. Southwest wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Monday Night

Rain before 10pm, then snow, possibly mixed with rain. The rain could be heavy at times. Low around 34. West wind 13 to 15 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Tuesday

Rain and snow before 7am, then rain between 7am and 1pm, then rain and snow after 1pm. High near 42. Southwest wind 3 to 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tuesday Night

Rain and snow, becoming all rain after 7pm. The rain could be heavy at times. Low around 37. South wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Wednesday

Rain. The rain could be heavy at times. High near 49. Chance of precipitation is 100%.

Wednesday Night

Rain. Low around 41. Chance of precipitation is 90%.

Thursday

Rain. High near 47. Chance of precipitation is 80%.

Thursday Night

Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.

Friday

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

Friday Night

A chance of rain. Mostly cloudy, with a low around 39.