March 21, 2017

MOUNTAIN WEATHER FORECAST

Time and Day: 0730 Tuesday

The Snapshot:    Gray, drizzly with mild temperatures today.  The moisture shifts to light snow tomorrow with Thursday trending dry.

The Science:  This morning’s radar has mixed rain and snow showers moving through the mountains.  The low-pressure system responsible for the dreary weather will slowly track up the coast over the next few days.   A weak cold front will swing through tomorrow lowering freezing levels a bit and changing the light rain to light snow showers.   

The Long Range:   Thursday will be mostly dry with some clear periods under a ridge of high pressure.   Another system with mixed rain and snow and seasonally average temperatures occur on Friday and Saturday. 

24hr Precipitation ending at 4am:
Today 24hr water = .25 snow = trace
Tomorrow’s 24hr water = .25-.5  snow = 1-3

Trend and Timing:
Light mixed rain and snow continue through tomorrow.


24hr temperature ending at 4 am: 
Low: 30    High: 40
Freezing level: 4500’ -  6000’

Trend and Timing:   
Weak east flow will help hold temperature low this morning.  Freezing levels then peak near 6000’ later today and then fall after midnight tonight.

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

Trend and Timing:
East flow at the surface with SE flow aloft will be the general wind pattern through tomorrow morning.


jM

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