MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time: Thursday 0630

Current Observations:

24hr Precipitation: .15swe, 2” of snow

Temperature profile: 22 base, 18 ridges

Pass level winds:  light but gusty westerly

Barometer: 1005mb’s and rising

Sky: OC

Radar:  Lights snow falling along the western slopes with eastern Washington being mostly dry.   

The Forecast: Intermittent snow showers will continue today with snow tapering off tomorrow.

Long Range:  Sunshine with temperatures in the mid to upper 20’s can be expected for the weekend.   Snow on Monday???   

  

The Science: The atmosphere will remain unstable under NW flow aloft for the next 24hrs.  Periods of moderate snow will be possible tonight as a short-lived convergence zone forms.  The snow tapers off through tomorrow as a high pressure ridge slides into place.

After a nice sunny weekend, a moist warm front will approach the region with some potential measurable snow possible on Monday/Tuesday.  Details are still in question so stay tuned.

Forecast confidence: Fair - the convergence zone intensity and timing is always hard to pin down.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: .5  snow: 3-6 Tomorrow’s 24hr water: <.25  snow: 1-2 Trend and Timing: Light snow showers today with a period of moderate snow possible tonight.   The snow tapers off after 4am tomorrow with drying through the day.

Temperature: Low: 18  High: 26 Freezing level: +-2500’ Trend and Timing:    Freezing levels will hold steady around 2000’ for the next 24-36hrs.

Winds Base: 5-10 W Ridge Top: 5-10 W Trend and Timing: Light gusty westerly flow will continue through tomorrow.