Punta Bardini - Low Density, unconsolidated

SNOWPACK OBSERVATION
Punta Bardini
Submission Info
Forecaster
Thursday, January 12, 2017 - 12:00pm
Red Flags: 
Recent loading by new snow, wind, or rain
37° 36' 17.208" N, 118° 57' 57.024" W
Snowpit Observations
More detailed information about the snowpack: 

-Route: Propane tanks up Old growth to summit, back down thru skier R telebowl.

-Light low density snowfall accumulating rapidly all day until mid afternoon.  Over 1 ft at 8,000' at 10:15am, over 2ft by 2pm at 9,500'.  No signs that it is consolidating into any kind of slab all day today.  Just loose slough on steeper pitches.  Occasional to rare moderate gust out of the south at the ridgetop (10,000'), but mostly calm.  No signs of slabby surface snow anywhere today on Punta. 

-Ski cut top of main Bardini Chute resulted in some slough.  Skied Old Growth and Telebowl.  No signs of shooting crack, woomphing, although small pockets of settlement on steeper rolls, but nothing propagating.    

-One pit dug in wind sheltered location just under 9,000', 225cm total snow depth, see attached profile.  Of note, bottom half of snowpack is isothermal, still wet, with 10cm refrozen rain crust at top.  Upper half of snowpack above this rain crust is right-side-up, with upper 50cm new very low density unconsolidated snow.  Some CT results in denser snow between the crust and todays new fluff, failing with moderate to hard force, Q2 results.  ECTs did not propagate.

-Another pit dug on exposed risdgeline 3/4 of the way up (~9,400', N facing).  On windward side of this ridge (W side), new fluff from today sat directly ontop of rain crust.  The farther East from ridge (leeward side), the more dense snow was found between rain crust and todays fluff.  ECT test slightly to the lee-side with about 15cm old dense snow (from yesterday or the day before) ontop of rain crust, ECT tests failed with hard force and propagated, but not too energetically.  Tests failed on thin facet layer under this upper rain crust. See attached profile for more details.

-Overall little evidence was found of instabilities today on our tour.  Of most concern would be extensive sloughing on steeper slopes.  As this new low density snow settles however, it will most likely develop some slab tendencies, which may effect stability assessment in future days.

-Some of the better skiing of the year ... much snow in the face :-)

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Precipitation: 
Rain
Air temperature trend: 
Static
Wind Direction: 
Accumulation rate: 
Greater than 1 in. per hour
More detailed information about the weather: 

-Heavy snow until mid afternoon, then becoming light.  No wind, -4.5deg C at 9,000' at noon.  

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