MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time: Sunday 0700

Current Observations:

24hr Precipitation: .04” of water produced 1” of snow over the last 24hrs.  

Pass temperature: 29

Pass level winds: 0-5 E

Barometer:  1012mb and rising

Sky: Patchy fog

Radar: There are a few scattered snow showers still hanging around the mountains with clearing to the west.

The Forecast: The mountains will experience cold and clear weather through all of next week.  

Long Range: Long range models are starting to agree on the potential change back to snow starting on Saturday.    

  

The Science:  The low pressure system tracking into southern California waters will drag all the energy and moisture with it today. With the low pressure to our south and high pressure over the interior west, a cold dry airmass will be pulled into PNW.  Early morning temperatures creep into the low teens as the week progresses.   An inversion cloud layer will likely form in the eastern basin with clear skies over the mountains.  Enjoy the sunshine.

Long range (5-7days) forecasts hinge on jet stream.  The 7 day jet stream model has it starting to shift to the NW on Friday.  This will hopefully push the high pressure to the east and allow a few winter storms to enter the region.  Stay tuned.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: <.10  snow: trace Tomorrow’s 24hr water:0   snow: 0 Trend and Timing: Light snow showers this morning with clearing later today.

Temperature: Low: 22   High: 30 Freezing level: 3500’ – 1500’. Trend and Timing:    Daytime temperature recovery will be 30-32f.  Freezing levels will drop below 2000’ over the next 24hrs.

Winds Base: 0-5 E Ridge Top: 0-10 ESE Trend and Timing: East/offshore flow will strengthen today.