Long Running Slough in Bardini Chutes

SNOWPACK OBSERVATION
Bardini Chutes
Submission Info
Member
Saturday, March 25, 2017 - 1:00pm
Red Flags: 
Recent loading by new snow, wind, or rain
Rapid warming
Obvious avalanche path
Bardini Chutes 37° 36' 37.1592" N, 118° 57' 47.6028" W
Snowpit Observations
More detailed information about the snowpack: 

Skied the main Bardini Chute in late morning with about 25 cm of new snow and only mild wind effect. Did a few ski cuts across the top with no result other than small sloughs. Dropping in over the roll in the main chute caused a large slough to release, which ran much of the length of the chute, entraining a fair amount of new snow (~size 1+, probably not enough to bury, but more than you'd want to get hit with). No observed propagation in the snow outside of the ski affected region though.

Dug a pit on the skintrack, N Facing 9800'. 25cm of fist hard new snow resting on top of a 1cm 1F+ sun crust, then another ~20 cm of 4F snow on top of the main melt/freeze crust from earlier in March (3cm, K hard). The new snow was too uncosolidated for a good CT test results, but got CT13 Q3 at about 30cm down (right below the most recent melt freeze crust).

Even by 11am I observed noticeable sun dampening on E through NE slopes as high as 10,000. True N and shaded slopes were remaining soft though. On our second lap on Bardini we skied the Old Growth trees into Tele Bowl and found some crusts developing on NE aspects and below 9,000. By the bottom of Tele Bowl, the snow was quite damp.

Weather Observations
Blowing Snow: 
No
Cloud Cover: 
Clear
Air temperature: 
Above Freezing
Wind Speed: 
Calm
Precipitation: 
None
Air temperature trend: 
Warming
More detailed information about the weather: 

We started touring with extremely wet snow, temps around +1C, and a cloud deck hovering around 9500'. By 11-1130, the clouds had almost completely disappated though, giving clear skies with no wind, and lots of solar radiation to transform the new snow.

ESAC receives support from ...