10/25/2010 Weather
General Discussion: FIRST SNOW! A shift to a NW flow pattern occurred over the weekend, opening the door for the first winter storm of the season. Mixed rain and snow will continue through tomorrow with accumulation possible.
Long-term: Wednesday and Thursday look dry with a weaker system pulling up warmer air from the SW by the weekend. The stage seems to be set for a series of storms to track toward the PNW for the next 7-10 days.
24 hour Forecast Starting at NOON on Monday
Precipitation
“ Water: .5-.75
“ of Snow: 6-10”
Temperatures (F):
4000’ Low: 30 High: 34
5000’ Low: 28 High: 32
Winds speed/Direction
Pass level: 10-15 W
Ridge top: 10-20 WSW gusty
TRENDS AND TIMING
Precipitation: The moisture will continue through tomorrow night. With some luck it will be all snow, however, wouldn’t be surprised to see some rain in the base area from time to time. Precipitation will taper off early Wednesday.
Freezing levels: Freezing levels will hover around 4000’ today and then begin to drop to 3500’overnight. A warming trend will begin on Wednesday with freezing levels spiking up around 7000’during the weekend.
Winds: Winds could be a factor as the Puget Sound Convergence Zone takes aim at Stevens Pass later today, could see gust +20mph through the night. Impressive 35’ waves are currently pounding the coast.
Enjoy the white stuff while it last. JDM
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