1/8/2010 Weather
Short term: Snow will develop tonight as a low pressure system, spinning off the coast, drives a band of moisture through the mountains for the start of the weekend.
Long-term: A upper level ridge will build on Sunday. This will block the approaching systems from making it to the mountains for a few days. The longer range outlook is allowing the continuation of weak system, influenced by SW flow, to pass through from time to time.
24 hour Forecast Starting at NOON on Friday
Precipitation
“ Water: .25-.5
“ of Snow: 4-6
Temperatures (F):
4000’ Low: 18 High: 28 warming trend tomorrow
5000’ Low: 16 High: 30
Winds speed/Direction
Pass level: 0-5 E shifting SW
Ridge top: 5-10 ESE shifting SW
TRENDS AND TIMING
Precipitation: Snow will develop after 4pm today and continue through the night. Precipitation will slowly taper to showers tomorrow and then eventually end all together. There is the risk of rain/freezing rain tomorrow afternoon, but it should be light and short lived. Sunday looks dry for now.
Freezing levels: Freezing levels will stay below pass level with the help of east flow. Freezing level will rise to 5000’ tomorrow as the east flow gets pushed out by SW flow aloft. Freezing levels will bounce between 4000 and 5000’ as the warm air coming from the SW mixes with the cold air to the east. Sound familiar?
Winds: East flow will continue through the night. SW flow will eventually move in sometime tomorrow. This will mark the start of the warm advection period. JDM
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