MOUNTAIN WEATHER FORECAST

Stevens Pass Mountain Weather Forecast

Friday, November 29, 2019, 0930

Current Observations:

24hr Precipitation:                  0

Temperature profile:               12 base,  11 ridge

Pass level winds:                      light easterly

Barometer:                             1007mbs and falling

Sky:                                         clear

Radar:                            Dry and clear throughout the state

The Forecast: Cold and dry conditions will continue through Sunday morning.

Long Range:  We can expect a little snow Sunday afternoon with next week starting out dry and warmer.  The next chance of any significant moisture will be late next week.  

  

The Science:  The falling barometer is the indicator of the high pressure beginning to weaken.  This will take a few days to erode from the region.   A low pressure system developing off the coast of Oregon/California will produce light snow showers on Sunday for Washington.  Warmer air will be pulled into the region on Monday with daytime temperature peaking near freezing.

Weak systems will pass through the region through the week with no significant snow accumulation expected.    L

Confidence:  Good short term, poor long term.

Values from 4am today through 4am tomorrow.

Precipitation: Today 24hr water: 0 snow: 0 Tomorrow’s 24hr water: 0  snow: 0 Trend and Timing: No moisture expected until afternoon on Sunday.

Temperature: Low:  11  High: 20 Freezing level: 500’ Trend and Timing:    Freezing levels will remain below 1000’ through early Sunday morning.  Freezing levels begin to rise on Sunday with +3500’ freezing levels expected by Monday.

Winds Base:  0-10 E Ridge Top:  5-15 E Trend and Timing: East flow will remain intact through Sunday.