Brief Thaw

27th February 2024

The temperature and wet bulb temperatures on the summit of Aonach Mor over the past 24 hours. Between about 18:00 and 23:00 they were different as the air must have been dry. However, the rest of the time they were the same. It briefly got above freezing around 7am this morning.

There was a brief thaw this morning. The freezing level steadily rose to summit level during the night before dropping quite rapidly this morning. After some overnight it then cleared up quite nicely for a short period before becoming cloudy with the odd snow shower late morning and through the afternoon. At higher levels the thaw will have wetted the surface of the snowpack, but won’t have penetrated to any great depth. I didn’t get the chance to see them, but I suspect most of the cornices observed in the past few days will remain, and be prone to collapse in the more substantial thaw which is forecast tomorrow.

The view over to Stob Choire Chearcaill this morning. There was a spell for an hour or two when the weather was quite clear if still a bit windy.

The view up the Goose gully. If felt like the hill had lost some of it’s superficial covering, in areas where the snowpack was very shallow there was more grass sticking through. However, the thaw was so brief that deeper deposits were not significantly affected.

Ben Nevis this morning.

The view into Coire na Ciste from the CIC hut.

Looking over to Douglas Boulder and Douglas Gap West Gully.

Not really Lochaber patch, but was sent this picture of Mam Meadail with Sgurr na Ciche behind over in Knoydart taken yesterday by an off duty forecaster.

Comments on this post

  • Sam
    27th February 2024 6:06 pm

    Always interesting to see glimpses from other areas!

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