Inside the ping pong ball.

17th January 2023

Another very cold day with a significant windchill due to the strong West winds. There was lots of drifting snow and windslab building in any areas sheltered from the wind. Todays journey involved making observations close to Cairngorm summit. On the return leg it was noticeable that the Westerly winds were being diverted by the topography of Cairngorm to create a North-Westerly headwind!


(Above) Good navigation was needed in the whiteout conditions.


(Above) Rime ice building to windward on a marker pole. This was a useful indicator as to where some of the recent snow is being blown.


(Above) Improving visibility below 900m. Weak layers in the recent windslab have persisted and were observed here on a North-East aspect at approx 900m.

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