An unsettled period ahead…
15th February 2023
Today marked the start of a more unsettled period as the high pressure of recent days makes way for the more common atlantic low pressure systems. As a cold front passed through in the early hours of this morning, fresh snow was expected. However, it appears that most of this precipitation arrived as rain at all levels, with light snow showers later as the freezing level dropped.
As such, there was just a cosmetic dusting at around 900 metres upwards in much of the area. Despite the highest summits being shrouded in cloud, there was evidence of snow transport around coire and plateau rims above 950 metres. Shallow accumulations of unstable windslab are anticipated here in steep wind sheltered terrain, the tops of gullies being an obvious example alongside those mentioned. The big picture remains largely unchanged – the Avalanche Hazard is Low.
Todays visit took me into Coire nan Gamhna, which is a curious hanging coire, but one with excellent views over to ‘The Window’ and the cliffs of Coire Ardair. Just above the lochan there is also an obvious geological division between the Semipelite which makes up part of Coire Ardair and Loch Laggan Psmammite of Sron a’Ghoire. This was largely obscured by dusting of new slushy snow today, but it is worth a look as the two halves of the coire have slightly different colours.
There was the sign of some ice hanging on in the highest seepage lines close to the plateau rim. This is of unknown quality but we can only hope provides a basis for more to build as the freezing level fluctuates in the coming days.
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