December 21, 2015

MOUNTAIN WEATHER FORECAST

Time and Day: 0600 Monday

The Snapshot:  Snow.  

The Science: A low-pressure trough will track through the State today keeping moderate snow showers falling the mountains.  The main energy of this system is directed towards the south-central Cascades with Stevens Pass just on the northern edge.  Snow showers will persist through tomorrow with a strong cold front bringing the next round of significant snow to Stevens Pass on Wednesday.

Long Range:  Models begin to differ in their opinion for Christmas day and the weekend.  So for now, we will just say snow showers will be possible for the remainder of the week.


Precipitation ending at 4 am:
Today’s 24hr Water = .5-.75   Snow = 6-10  

Tomorrow’s 24hr Water = .25-.5   Snow =  3-5

Trend and Timing:
Light snow showers for most of today.  Snow intensifies late this afternoon and evening.  Snow diminished early tomorrow morning. 


24hr temperature ending at 4 am tomorrow: 
Low:22  High: 26
Freezing level: +-2500.'

Trends and Timing:
Temperatures will remain in the mid to low 20’s through tomorrow.

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

Trend and Timing:
Easterly winds will shift westerly early tomorrow morning.



jM

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