MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time:  Tuesday 0700

Current Observations:

24hr Precipitation:  .32swe, 4” of snow

Temperature profile: 30 base, 26 ridge

Pass level winds: lights - WNW

Barometer: has fallen to 1003mb’s

Sky:  OC

Radar: moisture confined to the west slopes.

The Forecast: The snow will diminish today with partial clearing beginning tomorrow.

Long Range:  Clear and dry weather develops on Wednesday with warm spring like weather bringing us into the weekend.

  

The Science: The frontal system stalled last night and is now just passing east of the crest.  Cooler air and intermittent snow showers will fill in behind the front with an inch or two of snow possible through the day.

A high pressure ridge forming over the PNW waters will begin to drift east today.  Models have the high pressure strengthening and stalling over the inland NW for the second half of the week.  This will likely prevent any incoming weather from reaching the mountains.  

The models are in pretty good agreement in settling the strong high pressure ridge over the PNW by the weekend; warm daytime temperatures (40’s+) with cool nights may bring the first taste of spring.   

Forecast confidents: Good short-term, fair long range.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: .25+   snow: 1-3 Tomorrow’s 24hr water: 0  snow: trace Trend and Timing: The moisture will shift to showers today and dry up tomorrow.

Temperature: Low:24   High: 28 Freezing level: +- 2500’ Trend and Timing:    Freezing levels will hold steady today with daytime warming likely.

Winds Base: 5-10 W Ridge Top: 5-10 WNW Trend and Timing: Light WNW flow aloft will be general wind pattern through early Thursday morning.