Warming Snow and weather - SE gully on Mt Gibbs

SE Gully on Mt Gibbs via Bloody Cyn
Submission Info
Friday, April 2, 2021 - 1:30pm
37° 52' 30.9468" N, 119° 12' 39.2508" W
Snowpit Observations
More detailed information about the snowpack: 

Toured up to the summit of Mt Gibbs via Walker Lake --> Bloody Cyn --> SE Gully to check on warming snow (7600'-12,800').  Clear blue skies in the morning led to some scattered thin high clouds in the afternoon. Light SW winds were blowing at mid elevations, with consistent moderate SW winds at the summit (12,800') at 12:30pm with an air temp of -6°C / 21°F.  Solid refreeze led to some firm skinning conditions at all elevations before slopes warmed up mid-day (ski crampons helpful even on NE aspects down to 8500').  

At noon @ 11,780' on due South aspect: HS=185cm, top 13cm was moist melt/freeze grains ontop of cold dry snow.  Two robust crusts were noticeable probing at 40cm & 110cm down from surface.  

At 1pm @ 9780': Air temp=+4°C / 39°F.

Snow on S to SE to SW aspects from 12,800-9780' at 1pm was moist at the surface, but still very supportable with little concerns for wet loose instabilities (good smooth turns, wouldn't call this corn snow though yet... still transitioning).  However at 1:30 lower down at 9100' on a NE aspect a natural small loose point release recently occured, and ski turns in this area created some small loose-wet panels of snow to slide, and some large rollerballing (see attached videos).  If this slope was steeper and longer and confined such as a coukoir or ended in a gully, this kind of loose wet slide could have become consequential.  Across the creek on more sotherly facing terrain we saw debris from a slightly larger slide that funneled through a chute that happened earlier today.

Due North facing slopes down to 8800' still were mostly cold and dry, however slopes 10° off from due North at 9000' were exhibiting surface moistening.  Snow on these lower elevation slopes were quite manky and challenging to ski.     

Snowpack photos: 
Small human triggered loose wet slide - NE aspect 9100' at 1:30pm
Snowpit videos (tests, etc): 
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