MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time:  Wednesday 0630

Last night’s front sagged south with the southern portion of the state getting the Convergence Zone goods.  Mt Rainer’s Paradise received 20”.    

Current Observations:

24hr Precipitation:  .3swe, 6” of snow

Temperature profile: 25base, 21ridges

Pass level winds: light westerlies

Barometer: 1004mb’s and holding

Sky: OC

Radar: light snow showers along the western slopes with a bit more activity down around Mt Rainier.  

The Forecast:  Light snow showers with falling temperatures can be expected today.  Dry tomorrow with another developing snow event shaping up for Friday.  

Long Range: Another 6-8” of snow will be possible Friday leading into Saturday.  Sunday and Monday will be dry and with clear periods.

The Science: The low pressure trough that brought us this nice dose of snow will slowly drift south through the region today.  As it exits, dry northerly flow aloft will filter in.

Another similar NW flow disturbance will track through on Friday with a repeat of lasts night performance.    

Forecast confidence:  Good.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: .25 snow: 1-3 Tomorrow’s 24hr water: .10 snow: trace Trend and Timing: Light snow showers will persist through the day with tomorrow being mostly dry.

Temperature: Low: 16   High: 26 Freezing level: 2500’-1500’ Trend and Timing:    Freezing levels are on the descent and are expected to hover around 1500’.

Winds Base: 0-5 W shifting E Ridge Top: 5-10 W shifting NE Trend and Timing: A short easterly flow period will develop tonight with winds shifting back to westerly on Friday.