STEVENS PASS MOUNTAIN WEATHER

11/16/2011 Weather

General Discussion: A strong frontal system will descend on the PNW today bringing snow, rain, and wind, to Stevens. This storm will begin to break up late tomorrow with just scattered snow showers on Friday.

Long-term: Models are currently showing the next storm sliding south down the coast line over the weekend, and thus, it is not expected to make it to the mountains. This strong NW storm track is expected to continue pumping storms through the PNW throughout the Thanksgiving week.

24 hour Forecast Starting at NOON on Wednesday

Precipitation
“Water: .5-.75 by 4am. 24hr total by noon .75 -1

“Of Snow: 6-10 by 4am. 24hr total by noon 8-12

Trend and Timing:
Snow is just now entering the mountains. A short lived rain, snow/rain mix, below 4500’ is expected this evening. The upper mountain should get some nice coverage. Rain will shift back to snow after midnight and continue through tomorrow. PS convergence flow will enhance snow fall in the early morning hours.

Base Area Temperatures (F):
Low: 24 High: 34

Freezing level: 2500’ 4500’

Trend and Timing:
Freezing level will rise through the day reaching 4500’ this evening. Freezing levels will then rapidly fall after midnight. Freezing levels may drop below 2000’ by Friday.

Winds Speed/Direction
5-10 E shifting 15-20 W

Trend and Timing:
East flow will eventually be overtaken by WSW flow this evening. Strong westerly flow is expected after midnight. 15-20mph winds with strong gust (40+ ridge top) can be expected.