MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Day and Time: Thursday 0800

The Snapshot:  Another sunny day with some clouds and light snow moving in tomorrow.  The weekend will be cooler, dry and sunny.   

Current Observations:

Precipitation: 0 

Pass temperature: 24

Winds: light out of the west

Barometer: 1028mbs and steady

Sky: Clear with some morning fog.

Radar:  Clear

The Forecast:  Dry and clear today with clouds moving overnight.  Light snow will begin tomorrow after sunup with an inch or two likely.  The weekend will be mostly dry and clear with cooler temperatures.   

Long Range: A mixed rain and snow event is expected on Tuesday/Wednesday with the remainder of the week trending dry.  

  

The Science:   The source of tomorrow’s clouds and light precipitation is a weak low pressure trough pushing up and over the high pressure system parked off of the PNW coast.   A cool pocket of air is coming along for the ride which will temporarily drop freezing levels to 3500’.   

The high pressure ridge rebounds tomorrow night for another stretch of dry and mostly clear weather.   Cooler ENE flow develops over the weekend which will allow for some cool crisp mornings.  Long range models begin to disagree on the details of the warm front moving in on Tuesday; likely a few inches of mixed rain and snow.   

 No signs of any major snow events are appearing in the long range outlook.

Values from 4am today through

 4am tomorrow.

Precipitation: Today 24hr water: 0  snow:0 Tomorrow’s 24hr water: <.25  snow: 1-2 Trend and Timing: Dry today with snow arriving +-10am tomorrow.

Temperature: Low: 24    High: 40 Freezing level:  5500’-3500’ Trend and Timing:    Day time temperature will quickly rebound back into the mid to upper 30’s today.  Freezing levels being to fall after 4am tomorrow morning.

Winds Base: 0-5 W Ridge Top: 5-10 W Trend and Timing: Light westerly flow will continue through tomorrow.