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Observation Date
12/9/2012
Observer Name
Jimmy Tart
Region
Salt Lake
Location Name or Route
Big Flats / Ant Knolls
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Speed
Light
Weather Comments
Gentle snow on and off through the day.
Snow Characteristics
New Snow Depth
15"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
Blower. Great skiing conditions. I was surprised to not find any real windloading on ridge tops. Small cornicing, but nothing slabby.
Red Flags
Red Flags
Poor Snowpack Structure
Red Flags Comments
I am amazed at how much can change with a little elevation. Yesterday, only about 1000 feet lower, hand pits showed the new snow sitting on top of a mostly supportable crust from recent warm temps. Today, in the same drainage but higher up, the crust was gone, but the 14 in of new snow was sitting on a 3 in graupel layer. CT25 Q2 on this layer, but no real wind meant just soft slab releases. No real problems right now, just soft slabs, but the moist facets are still at ground level, and the combination of graupel and the facets beneath that could be bad for the future. The good news was a lack of real density changes through out the snowpack. Fist to about 15 in down, trending to 4f until the facets near the ground.
Avalanche Problem #1
Problem
New Snow
Trend
Decreasing Danger
Problem #1 Comments
Sluff-a-lanches on steeper slopes could take your feet out
Avalanche Problem #2
Problem
Persistent Weak Layer
Problem #2 Comments
Even small wind slabs would want to run on the graupel layer