ol’ snake eyes is back…
15th February 2015
Pretty atmospheric ‘welcome’ to Creag Meagaidh in the main car park this morning. Crownwall at 770m on a SE aspect.
Full depth avalanche on Sron a Ghoire visible from Adverikie Estate office on the A86.
Evolution of a full depth avalanche: 4th February. Glide cracks just opening and visible. Crownwall and runout track marked in colour.
Timeline: 8th February. Glide cracks wider and evidence of buckling on the downstream slab.
Timeline: 12th February. Glide cracks & buckling now much more developed. Future stauchwall apparent at the bottom of the slab.
Timeline: 15th February. A size 3.5 full depth avalanche. 120m crownwall 1m to 3.5m deep, running out 300m.
Big blocky debris
Debris tip 5m high in places in the runout zone. Rucksac and ski poles for scale. Some blocks three m3.
Glacial-like striations. Photo doesn’t capture actual scale especially well! Big block right of centre with black marking is 2m cubed.
Looking upwards to the crownwall from the toe of the debris.
Sister full depth avalanche-in-waiting on Sron a Ghoire: less than 50m away from today’s event and not yet released at the time of writing.
Full depth avalanche on a SE aspect of Beinn Sgiath above Glen Markie nr. Laggan. Estimate release at same time as Sron a Ghoire event.
An interesting day at the office! Still some hangfire potential at the Sron a Ghoire and Beinn Sgiath avalanche sites – some very large blocks/slabs poised to slide above the present crownwalls. The Sron a Ghoire avalanche ran out across the usual walkers’ ascent/descent route on this popular mountain.
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