November 21, 2012

11/21/2012 Stevens Pass Mountain Weather Forecast

General Discussion: Radar shows snow showers continuing to move into the mountains. These gusty winds and snow showers will continue for the remainder of the day. Clearing is expected tonight with clouds thickening tomorrow.

Long-term: The next front will reach the mountains tomorrow night or early Friday morning with snow changing to rain during the day on Friday. High pressure building off the coast will bring dry and possibly sunny weather to the PNW starting on Saturday and lasting through the first part of next week.

24hr Accumulative Precipitation Totals Starting at Noon Today:
“Water by midnight= .25
“Of additional water by 4am= >.10
“Of additional water by 12pm= 0

24hr (12pm-12pm) Inches of Water = + .25

24hr (12pm-12pm) Inches of Snow = 3-5”

Trend and Timing:
We should receive the forecasted 4”of snow by noon today. Snow will end after 10pm tonight with dry conditions tomorrow.

24hr Base Area Temperatures (F) Starting at Noon Today:
Low: 24 High: 32
Freezing level: 3500’ 3000’

Trend and Timing:
Freezing levels will dip a bit lower tonight. Freezing levels will begin to climb through the day tomorrow reaching 4000’ by late afternoon.

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

Trend and Timing:
Winds will begin to mellow tonight and begin to shift easterly tomorrow.



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