Mt Andy and Diamond Avalanches

Observer(s) Location: Report #:
983
Mode of Travel: Complete Report Date/Time: Orig Report Date/Time:
Ski (Mountaineering AT, Tele etc)   02/25/2014 9:56 PM 02/25/2014 6:22 PM
Type of Report:
                       

Red Flags:
Recent avalanche activity
Wind

Narrative

Toured into McCully basin from Salt Creek Summit via Wing Ridge.  Photographed 2/22 avalanche reported by an unguided group of skiers staying at the McCully camp.  Mt. Andy avalanche was reportedly remote triggered by skiers from near the top of the Cow's Face.  Diamond 3, 4, and 5 may have been remote triggered by debris from Mt. Andy avalanche.  These avalanches appear to have run on the interface between last three weeks or so of snowfall and the pre-existing faceted snowpack.  Hopefully more information will be forthcoming.


Only other avalanche activity observed were roller balls on S aspects and a small wind slab below a cornice on Whitebark Ridge.  Warm and gloppy below 7500', good powder in sheltered areas in alpine.



Snow & Weather

Diamond 3, 4, and 5.  N aspect, 8500' start zone.


NW face of Mt. Andy (~9000').


Extent of debris from the two avalanche paths.


Pictures

Photo 1: 

Photo 2: