Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

White Pass (TWHIT)

Lat: 46.638°NLon: 121.39°WElev: 4498.0ft.

unknown precip

N/A

Humidity NA
Wind Speed W 9 MPH
Barometer NA
Dewpoint N/A
Visibility 1.24 mi
Last update NA
Extended Forecast for

Chinook Pass WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 12. Wind chill values between 4 and 9. West wind around 6 mph.

    Low: 12 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow, mainly after 4pm.  High near 32. Wind chill values between 8 and 18. Southwest wind around 8 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 32 °F

    Mostly Cloudy
    then Snow

  • Sunday Night

    Sunday Night: Rain and snow, becoming all rain after 11pm.  Temperature rising to around 35 by 5am. Wind chill values between 21 and 26. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    then Rain
    Likely

  • Monday

    Monday: Rain.  High near 39. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 11pm.  Mostly cloudy, with a low around 34. Southwest wind 13 to 15 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain.  High near 38. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 38 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 35. Chance of precipitation is 90%.

    Low: 35 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Cloudy, with a high near 38.

    High: 38 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Cloudy, with a low around 36.

    Low: 36 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 12. Wind chill values between 4 and 9. West wind around 6 mph.
Sunday
Snow, mainly after 4pm. High near 32. Wind chill values between 8 and 18. Southwest wind around 8 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
Rain and snow, becoming all rain after 11pm. Temperature rising to around 35 by 5am. Wind chill values between 21 and 26. South southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
Rain. High near 39. Southwest wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 34. Southwest wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 38. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 35. Chance of precipitation is 90%.
Wednesday
Rain. Cloudy, with a high near 38.
Wednesday Night
Rain. Cloudy, with a low around 36.
Thursday
Rain. Cloudy, with a high near 39.
Thursday Night
Rain likely. Mostly cloudy, with a low around 35.
Friday
Rain and snow likely. Mostly cloudy, with a high near 43.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.88°N 121.51°W (Elev. 4823 ft)
2:25 am PDT Mar 15, 2026
3am PDT Mar 15, 2026-6pm PDT Mar 21, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database