Sky High!

Rare nacreous cloud usually develops in extremely cold air above polar regions. It results from tiny ice crystals scattering the light into a multitude of 'rainbow' colours. There was great excitement in the media, when, on the 19th of December, such clouds were seen over parts of Scotland and Northern England (https://www.theguardian.com/uk-news/2023/dec/20/rare-nacreous-clouds-spotted-over-scotland-and-england). In the Northern hemisphere, climate change disrupts the normal patterns of air flow, occasionally bringing polar air into more southerly regions. These recent sightings are rather early in the winter but this phenomenon can reach in even more unusual locations. The photograph shows nacreous cloud over Hastings (in England's 'Deep south') at the start of 2023.