Cornice Triggered

26th January 2021

Covid -19
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This blog is intended to provide hazard and mountain condition information to help plan safer mountain trips.

Plenty of cornices evident on Aonach Mor today. The light was quite flat, but despite this I could see plenty of evidence of cornice collapse and cornice triggered avalanches. However, there were plenty of large and unstable looking cornices remaining. A group of ski tourers passing the top of Easy Gully. Although not obvious in the photo they are staying well back from the edge, a very sensible thing to do when there are cornices about. A small and partially buried crown wall can be seen in the back left of the gully just below where the cornice is the smallest. This avalanche would most likely have been triggered by collapsing cornice. 

Some large and not very stable looking cornice about at the moment. I can’t imagine this one do anything but collapse at some point.

The South side of Coire an Lochan. Hard to make out in the photo, but a crown wall from a cornice triggered avalanche can be seen in the scarp slope just this side of the nearest crags.

The summit hut looking well rimed up. The reason there is no rime on the large dark vent is that it warms up. The impressive “flag” of rime on the pole near the door shows which way the wind was blowing when rime formed (right to left).

Moody skies to the West over Loch Eil.

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