Mountain Weather Forecast

Stevens Pass Mountain Weather Forecast

Day and Time: Sunday 0700

Current Observations:

24hr Precipitation:   0

Pass temperature:   27 base / 23 mid mtn

Pass level winds: Light and variable

Barometer:  Falling, currently at 992

Sky: Partly Cloudy

Radar: Light precip in the western half of the state

The Forecast: Increasing clouds and cool temperatures today with a few snow flurries possible tonight. Clearing and cool Monday.

Long Range:  Dry northerly flow sets up for the middle of the week bringing low freezing levels, partly sunny days, and likely no precipitation.

  

The Science: A low pressure system is dropping south from the BC coast this morning. Its track will be well west of the Cascade Crest and will bring with it a relatively dry, cool, continental air mass. Freezing levels will lower to sea level by Monday, with Fraser River outflow expected to develop which will bring breezy conditions to the Northern Interior. All in all, the I-5 corridor and northern Olympic Peninsula stand to get more snow than most of the Washington ski areas out of this event. The low continues to sag south on Monday, with Washington being left in a trough of cool air.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: <.10  snow: 0-2” Tomorrow’s 24hr water: <.10  snow: trace Trend and Timing: Light snow flurries possible Sunday evening and Monday.

Temperature: Low: 15    High: 28 Freezing level: 1500’- sea level Trend and Timing:    Steady cooling Sunday and Monday.

Winds Base: Variable then east 10-20 Ridge Top: SW, then E 15-25 Trend and Timing: East winds will develop Sunday afternoon and Monday morning.