October 21, 2019

MOUNTAIN WEATHER FORECAST



 

Stevens Pass Mountain Weather Forecast
Day and Time: Monday 0900

Current Observations:
24hr Precipitation: .92” of water, 8”of wet heavy snow at Pass level.
Temperature profile: 36 base, 32 ridge        
Pass level winds:  light and westerly
Barometer: 1018mb’s and rising                
Sky: Overcast                         
Radar: Heavy rain tracking SE through the Strait of Juan de Fuca with the snow level around 5000’.   Mostly dry east of the Cascade Crest.

The Forecast: Heavy rain with high mountain snow and wind can be expected this afternoon with freezing levels rising above 6000’.

Long Range: A drying trend begins tomorrow with the next chance of rain arriving on Friday.  
   
The Science: A strong moist warm front will move into the region today with heavy rain and high mountain snow.   Freezing levels will rise above 6000’ this afternoon and remain well above Pass level through the night.

The good news; high pressure will begin to build over the region starting tomorrow.  3 days of dry and sunny weather can be anticipated. 

Values from 4am today through
 4am tomorrow.
Precipitation:
Today 24hr
water: 1-2” snow: 0

Tomorrow’s 24hr
water: .25  snow: 0

Trend and Timing:
Heavy rain will begin this afternoon and continue through the night.  Drying begins after 7am tomorrow morning.


Temperature:
Low:  34  High: 50
Freezing level: 4500’ – 6500’

Trend and Timing:   
Freezing levels are on the rise and could top out around 7000’ tonight.

 
Winds
Base: 0-10 W
Ridge Top: 10-20 W

Trend and Timing:
Gusty ridge top winds will begin to blow this afternoon with winds diminishing tomorrow afternoon.

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