MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time:  0800am

Current Observations:

24hr Precipitation:  .85” overnight, 1-3” of snow above 4500’

Temperature profile: 34base, 32 ridge

Pass level winds: 5mph average with 20+mph gusts

Barometer: 1009 mb’s and slowly rising

Sky:  OC

Radar: Gusty winds this morning with mixed rain and snow showers west of the Cascade Crest and tracking NE.

The Forecast:  Mixed rain and snow showers will persist through the weekend.  

Long Range:  The moisture will come to an end on Wednesday with dry and clearer weather expected for the remainder of the week.  Temperature will be seasonally normal (mid to upper 30’s)  

  

The Science: Cool unstable westerly flow has filled in behind the cold front that passed east of the crest last night.  The westerly flow will continue to drive disturbances into the mountains through at least Tuesday.   Snow levels seemed to have settled on the 4500/5000’ range for the weekend.

A high pressure system strengthening off of the California/Oregon coast will nudge its way north as the week progresses.  Wednesday through Friday should be fairly nice and mostly dry.  

Forecast confidence:  moderate.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: .5-.75  snow: 3-5 above 4500’ Tomorrow’s 24hr water: .5  snow: 3-5” Trend and Timing: Moderate snow and rain showers will continue through the weekend.

Temperature: Low: 32  High: 36 Freezing level: +- 4500’ Trend and Timing:    Freezing levels will hover around 4500’ with some daytime warming expected.

Winds Base: 5-10 W Ridge Top: 5-15 Wsw Trend and Timing: Winds will slowly diminish today with westerly flow continuing through early Sunday morning.