March 22, 2018

MOUNTAIN WEATHER FORECAST


Time and Day: 0700 Thursday

The Snapshot: Light rain showers switching to snow showers begins today and continue through the weekend.   Dry and warmer weather will develop early next week.   

The Science

Current Observations: .06” of light moisture fell overnight; it is currently partly cloudy and 35 degrees.  The barometer has dropped to 999mb’s and the winds are easterly and blowing 5-10mph.  The radar has the leading edge of an approaching cold front pushing a band of moisture into the Puget Sound region.     

The Forecast:  Temperatures will fall as the cold front moves inland. The models have the moisture moving into the mountains in a few hours with light to moderate snow showers persisting through the weekend. 

The Long Range: The parent low pressure cell, responsible for this mixed bag of weather, will continue its journey south through the weekend. Dry, sunny and warmer weather will set up camp next week as high pressure builds over the region.  

24hr values daily 4am to 4am.
Precipitation:
Today 24hr
water: .25  snow: 2-4

Tomorrow’s 24hr
water: .25-.5  snow: 2-5

Trend and Timing:
Intermittent snow showers will continue through the weekend.  Trickle in accumulation will be possible.


Temperature:
Low: 20    High: 34
Freezing level: 5000’ – 3000’

Trend and Timing:   
Temperatures will fall through the day with freezing levels dropping to or below 3000’ today.   The temperature will continue to fall tomorrow with Freezing levels hitting +-1000’.    

 
Winds
Base: 0-5 E shifting W
Ridge Top: 5-10 E shifting W

Trend and Timing:
The winds will shift westerly with the passing of the cold front today.


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0800 Thurs March 28th, No ABS