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Reported Friday, February 5, 2010 at 6:05 AM
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Weather Forecast
Today: Increasing clouds with northwest winds 10-20 mph becoming gusty this afternoon. High temperatures in the mid 20's.
Tonight: Cloudy with snow developing T-2" possible. Winds moving to the southwest 5-15 mph and lows in the teens.
Tomorrow: Snow with another 1-3" expected. Southwest winds 10-20 mph and highs in the mid 20's.
Weather Outlook
A quick ridge of high pressure is sliding overhead today, but we will see clouds by this afternoon as moisture flows through this ridge. The flow will shift to the southwest tonight, increasing our chances for some snow on Saturday. Next week is looking to be unsettled with current models showing several chances for more snow.
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Danger Rating
The current danger remains MODERATE
Avalanche Problem #1
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We continue have concerns with buried weak layers in the snowpack. Below last week's storm snow lies buried facets and surface hoar, and deeper in the snowpack we still have depth hoar near the ground. These weak layers have not been producing avalanches in the past couple days, but if the right trigger hits the right spot, we could see slab avalanches release.
In the Backcountry
A few inches of snow yesterday combined with winds blowing hard enough to move the snow will have created shallow soft slab avalanches on lee and cross loaded slopes. The winds were blowing from the north-northwest; so east, southeast to south slopes will be the most suspect. The new snow will not add enough of a load to effect the deeper weak layers in the snowpack, however these layers still remain a problem. Areas well below treeline and places where avalanches have previously run are very weak and punchy and could produce avalanches again with the right load.
Travel Advisory
Continue to use good travel habits in the backcountry today. Don't assume that you will find similar conditions on all slopes so take the time to investigate each area to see what is happening. Watch for changing conditions through the weekend as well.
Reported by: Banks
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