SPOT WEATHER FORECAST

12/29/2009 Weather

Short term: Finally, a couple of systems, although small, will bring some snow to the mountains.

Long-term: The second of the systems, schedule to arrive on Thursday, will draw up warm air from the SW. We therefore will be fighting the freezing levels as they rise to 4000. So far there seems to be enough cool air to keep us in snow. The first week of the New Year looks dry as another high-pressure ridge develops off the coast.

24 hour forecast starting at noon on Tuesday
Precipitation
“ Water: .25
“ of Snow: 2-4

Temperatures (F):
4000’ Low: 20 High: 28
5000’ Low: 18 High: 26

Winds speed/Direction
Pass level: 0-5 E
Ridge top: 0-10 SE

TRENDS AND TIMING
Precipitation: Light snow will develop tonight and taper to showers tomorrow afternoon. Snow showers will linger until the next system arrive on Thursday.

Freezing levels: Freezing levels will continue to stay low through the night, influenced by the east flow. Freezing levels will rise to 3000’ after 10 am tomorrow.

Winds: East flow will continue through noon tomorrow. SW flow will then develop in preparation of Thursday’s front-not expecting any significant wind events with these systems. JDM