Significant snow loss

24th December 2024

The freezing level has been well above the summits for the last twenty four hours, resulting in significant snow loss. The greatest extents are in the high coires and open slopes of a North-East through East to South aspect above 900 metres. The snow cover below this altitude mainly consists of snow patches and vertical ribbons in burn lines.

Visibility made observations challenging today, but fleeting views gave the impression of a very different set of conditions to yesterday. A windy day is in prospect to tomorrow, but it is expected to be dry. Merry Christmas from SAIS Creag Meagaidh.

 

Cadha an Feidh and Creag Dhubh early in the morning. It has been a decidedly grey day today.

 

Looking West along to Sron Coire a’Chriochairein from the slopes of Carn Liath. The vertical ribbons of snow are aligned vertically having originally been deposited under westerly and north-westerly winds. The small “micro lee aspects” hence facing the camera. Behind lies Coire a’Chriochairein, aka Stone Coire, but this was about the best visibility today – just a fleeting glimpse.

 

Snow patches of a East and South-East aspect on Sron a’Choire.

 

If you are looking to walk off the Christmas excesses in the next few days, I can thoroughly recommend taking the new path a short way up towards Na Cnapanan (625m). This new path was put in a couple of years ago and is a geological delight, many of the boulders feature interesting igneous intrusions. The country rock is Psammite and appears to have been intruded by small veins of pegmatite. Further up the hillside there is a notable dyke of Felsite, which has a quite distinctive red colour and is very fine grained. Anyway, this rock is particularly interesting as the rock, possibly pegmatite on the right was intruded first, the rock on the left being psammite. Later what looks like granite cut through both the psammite and the granite creating this distinctive cross formation. Enough to quicken the pulse of any rock enthusiast.

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