March 20, 2017

MOUNTAIN WEATHER FORECAST

Time and Day:  0730 Monday

The Snapshot:   Dry, warm and a bit breezy today with light rain developing tonight.   Tuesday will be rainy with cooler air arriving on Wednesday. 

The Science:  The high pressure that brought us the beautiful weather yesterday is being pushed east by an approaching low pressure system.   East west pressure gradients will tighten along the crest, hence the gusty easterly winds starting to blow.  Clouds will move in today, along with a warmer moist air mass. Cooler air aloft begins to fill in on Wednesday for some lower freezing levels and a bit of snow to add to the mix.        

The Long Range:   Thursday will be mostly dry with more active weather (the rain vs snow game) returning on Friday.

24hr Precipitation ending at 4am:
Today 24hr water = .10 snow = 0
Tomorrow’s 24hr water = .5+ snow = 0

Trend and Timing:
Very light rain shows up early tomorrow morning with light rain expected through the day.


24hr temperature ending at 4am: 
Low:  24   High: 40
Freezing level: 3000’- 6000’

Trend and Timing:   
Freezing levels are on the rise.  Surface temps could peak near 40 today and struggle to drop below freezing until Wednesday.

 
24hr Winds (mph) ending at 4am:
Base: 5-10 E
Ridge Top: 5-15 E

Trend and Timing:
Watch for gusty easterly winds along the ridge tops and down the western slopes.  



jM

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