National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorm Outbreak and Risk of Flooding Today into Tonight

An outbreak of severe thunderstorms is expected from the lower Mississippi Valley toward the lower Ohio Valley this afternoon and evening. Tornadoes, strong to potentially intense, as well as damaging winds and hail are expected. Heavy to excessive rain from training thunderstorms in this area may lead to flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970ft.

light snow

28°F

-2°C

Humidity 81%
Wind Speed W 6 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 23°F (-5°C)
Visibility 3.00 mi
Wind Chill21°F (-6°C)
Last update 24 Mar 01:56 PM PDT
Extended Forecast for

Snoqualmie Pass WA

Winter Weather Advisory until March 25, 05:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 25, 05:00am

    NOW until
    5:00am Sat

    Winter Weather Advisory

  • This
    Afternoon

    This Afternoon: Snow showers. The snow could be heavy at times. High near 35. West wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 4 to 8 inches possible.

    Heavy Snow

    High: 35 °F

  • Tonight

    Tonight: Snow showers. The snow could be heavy at times. Low around 25. West wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Heavy Snow

    Low: 25 °F

  • Saturday

    Saturday: Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 35. West wind 7 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Snow Showers
    Likely

    High: 35 °F

  • Saturday
    Night

    Saturday Night: Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 25. West wind 6 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Snow Showers
    Likely then
    Chance Snow
    Showers

    Low: 25 °F

  • Sunday

    Sunday: Snow showers likely, mainly after 11am. Partly sunny, with a high near 37. West wind 5 to 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Snow Showers
    Likely

    High: 37 °F

  • Sunday
    Night

    Sunday Night: A 50 percent chance of snow showers before 11pm. Partly cloudy, with a low around 23. New snow accumulation of less than a half inch possible.

    Chance Snow
    Showers then
    Partly Cloudy

    Low: 23 °F

  • Monday

    Monday: A 30 percent chance of snow showers after 11am. Mostly sunny, with a high near 40.

    Chance Snow
    Showers

    High: 40 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of snow showers. Partly cloudy, with a low around 26.

    Slight Chance
    Snow Showers

    Low: 26 °F

Detailed Forecast

This Afternoon
Snow showers. The snow could be heavy at times. High near 35. West wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 4 to 8 inches possible.
Tonight
Snow showers. The snow could be heavy at times. Low around 25. West wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow showers likely, mainly after 11am. Mostly cloudy, with a high near 35. West wind 7 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Snow showers likely, mainly before 11pm. Mostly cloudy, with a low around 25. West wind 6 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow showers likely, mainly after 11am. Partly sunny, with a high near 37. West wind 5 to 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A 50 percent chance of snow showers before 11pm. Partly cloudy, with a low around 23. New snow accumulation of less than a half inch possible.
Monday
A 30 percent chance of snow showers after 11am. Mostly sunny, with a high near 40.
Monday Night
A 20 percent chance of snow showers. Partly cloudy, with a low around 26.
Tuesday
A chance of snow showers before 2pm, then a chance of rain showers. Mostly sunny, with a high near 43. Chance of precipitation is 30%.
Tuesday Night
A chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 27.
Wednesday
A slight chance of rain and snow showers. Mostly sunny, with a high near 45.
Wednesday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 27.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 42.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Snoqualmie Pass WA
 47.41°N 121.41°W (Elev. 2812 ft)
Last Update:
1:06 pm PDT Mar 24, 2023
Forecast Valid:
2pm PDT Mar 24, 2023-6pm PDT Mar 30, 2023
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation