February 12, 2013

Mountain Weather Forecast -Time: 0800

 A warm front approaching the coast this morning will bring a variety of light rains and snow in the base area with snow on the upper ridges. Snow with high winds is expected tonight and tomorrow.

Long term: Dry weather will returns on Thursday and will finish out the week. Models have a cold wet system dropping in from the NW over the weekend. Although a bit far out to have much faith in the details, it has the potential be a nice snow producer.

24hr Accumulative Precipitation Totals Starting at Noon Today:
Water by 4am = .5 Snow equivalent = 4-6

Total inches of water by noon tomorrow = < .75
Total inches of snow by noon tomorrow = 5-8

Trend and Timing:
Light rain/snow will continue today and tonight. The precipitation will increase over night and tomorrow. The Puget Sound Convergence Zone is expected to target Stevens Pass overnight so totals could increase slightly.

24hr Base Area Temperatures (F) Starting at Noon Today:
Low: 28 High: 34
Freezing level: 4000’ 4500’ 3500’

Trend and Timing:
Freezing levels will top out around 4500’ sometime this afternoon. Temperatures will then slowly decline through the night and tomorrow.

24hr Winds Speed (mph)/Direction Starting at Noon Today:
Base: 5-10 W
Ridge Top: 10-20 W

Trend and Timing:
Winds will also be strong with the passing of the front later today. Models indicate +50mph with higher gusts possible through the night. Winds will shift NW and diminish through the day tomorrow.





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