MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time: Tuesday 0700

The Snapshot:  The moisture will begin to diminish later today with temperatures slowly falling.  Mostly dry and cooler tomorrow with a chance of light snow early Thursday morning and then again Friday.

Current Observations:

Precipitation: 1.92” of water fell over the past 24hr with 0” of snow showing up on the Schmidt Haus telemetry.  The upper mountain received around 2” of very wet snow.    

Pass temperature: 32

Pass level winds: 5-10 E

Barometer: dropped to 1005mbs

Sky: overcast

Radar:  The radar shows light scattered showers over the north central mountains with a band of heavy moisture moving through the South Sound region.

The Forecast:  Things will begin to dry out later today with tonight and tomorrow being mostly dry with some partial clearing.  The winds shift westerly today with freezing levels slowly dropping overnight.  There will be and inch or two of snow likely Thursday morning with some light snow on Friday as well.

Long Range: Cooler with little to no precipitation is expected over the weekend.  Next week will start out clear, cold and dry.   

  

The Science:  The Cascades are currently between fronts with the warm front heading into the Canadian mountains and the following cold front just entering the Olympic Range.  The cold front is likely to occlude as it mixes with the warm inland surface temperatures.  The barometer should be at its lowest point this morning and begin to rise later today. Westerly flow with cooler upper air will begin to fill in this afternoon as well.

The jet stream forecast models have the storm track shifting to the south of Washington State of the next 36-48hrs.   Colder offshore flow develops over the weekend with dry and stable weather leading into the first full week of December.   

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: .25-.5   snow: 0 Tomorrow’s 24hr water: .25  snow: 1-2 Trend and Timing: Rain showers will diminish this afternoon with tomorrow being mostly dry.

Temperature: Low: 32    High: 36 Freezing level: +- 6000’ -4500’ Trend and Timing:    Freezing levels will peak at or just above 6000’ this morning and then begin to slowly fall to +- 4500’ tonight.

Winds Base: 0-5 E shifting W Ridge Top: 5-15 W Trend and Timing: Winds shift westerly this morning with gusty ridge top winds possible.