April 15, 2017

MOUNTAIN WEATHER FORECAST

Time and Day: 0630 Saturday

The Snapshot:  300 f with morning fog this morning. The weekend will trend dry, warmer and sunny.   

The Science:  The barometer has begun to rise with 1026hPa values beginning to clear and dry out the region.  A typical early morning cloud layers over Stevens Pass should begin to thin and break up as the morning progresses.   A real taste of spring should be felt tomorrow as a warm stable airmass settles in overnight.    

The Long Range:  Next week will start out dry with light rain developing Tuesday and Wednesday.    

24hr Precipitation ending at 4am:
Today 24hr water = .10  snow = Trace
Tomorrow’s 24hr water = 0 snow = 0

Trend and Timing:
With the exception of a few light snow showers, it will be mostly dry into Monday morning.


24hr temperature ending at 4am: 
Low: 28   High: 40
Freezing level: 4500’ -7000’

Trend and Timing:   
Surface temps are expected to peak late this afternoon with good nighttime cooling expected.   Freezing level rise to +-7000’ tomorrow with surface temperatures possibly reaching 50+. 

 
24hr Winds (mph) ending at 4am:
Base: 0-5 W
Ridge Top:0 -10 W

Trend and Timing:
Light westerly flow shift easterly tomorrow.



jM

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