MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time:  Wednesday 0700

Current Observations:

24hr Precipitation:  0

Temperature profile: 39 base, 42 ridge

Pass level winds: Gusty, east

Barometer: 1017mb’s and falling

Sky: clear

Radar: mostly dry with the leading edge of the approaching cloud deck beginning to push into Long Beach WA.

The Forecast:  More sun, warmth and wind today.  High clouds move in tomorrow with light mixed rain and snow possible late Friday night.

Long Range: Light mixed rain and snow showers with sun breaks can be expected for the weekend.  

  

The Science:  Dry east flow will continue to push through the Passes for a few more days. The slow dropping barometer is the indicator that the high pressure ridge is starting to weaken.  This will eventually open the door for a cold front to lift up through the region on Friday.  Freezing levels are expected to drop to +-4000’ late Friday night with light moisture in tow.     

The snow:  Due to the low relative humidity's, the snow pack is setting up under good evaporation in the upper layer.  The snow in the shade is starting to turn chalky and rather good. 

Forecast confidence: Good in short term with the timing of the moisture and the freezing levels still in question for the weekend.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water:0   snow:0 Tomorrow’s 24hr water: 0  snow: 0 Trend and Timing: 0

Temperature: Low: 34  High: 52 Freezing level: 10,000’ Trend and Timing:    Freezing levels will remain high through early Friday morning.

Winds Base: 5-15 E Ridge Top: 5-15 E Trend and Timing: Gusty easterly winds will continue today and diminish tonight.