MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time:  Wednesday 0700

Current Observations:

24hr Precipitation: .04 swe, 1” pow

Temperature profile: 27 base,  25 ridge

Pass level winds: calm, easterly

Barometer:1013mb’s slowly falling

Sky: clear

Radar:  the northern half of the state is clear with clouds and moisture to the south of Yakima.

The Forecast: Increasing clouds with temperatures pushing into the 40s’ today.  Rain changing to mixed snow will move in tonight.

Long Range: Light passing showers with clear periods will be pattern leading into the weekend.

  

The Science:  Washington State is caught between high pressure over the coastal mountains of BC and low pressure stationed off of the Oregon coast.   Couple this with a cut-off low forming over the inland NW, well let’s just say it will a mixed bag of sun, rain, snow and wind for the next few days.  

The GFS, Canadian, and the ECMWF models all disagree on what is to come for the weekend.  For meteorologists this means don’t even guess.    

Forecast confidence: good for next 24hrs, poor to fair beyond Friday.  

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: .25  snow: 1 Tomorrow’s 24hr water: <.25  snow: trace Trend and Timing: The moisture begins after sunset tonight with light showers expected through the day tomorrow.

Temperature: Low: 28  High: 44 Freezing level: 5500’ – 4000’ Trend and Timing:    Freezing levels will peak above 5000’ this afternoon and fall to 4000’ early tomorrow morning.

Winds Base: 5-10  E  gusty Ridge Top:  5-15 E Trend and Timing: Easterly flow will strengthen today.