Rare Kelvin Helmholtz clouds spotted over Lincolnshire

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Kelvin HelmholtzImage source, Arlene Towriss
Image caption,
Kelvin Helmholtz clouds are named after the two scientists who studied the physics behind them

A rare wave cloud has been spotted in the skies above Lincolnshire.

Arlene Towriss photographed it while driving with her husband on Tuesday at Swinhope, near Market Rasen.

Mrs Towriss said she posted the image on a couple of websites and was told it was a Kelvin Helmholtz formation.

They are named after scientists Lord Kelvin and Hermann von Helmholtz who studied the physics behind the phenomenon.

Mrs Towriss, who lives near Grimsby, said: "We stopped and I jumped out and took as many pictures as I could, it was there for just a couple of minutes and then it was gone - completely disappeared.

"I'd never heard of it and I've never seen anything like it. I feel really lucky to have been able to capture it. Just can't believe it."

BBC Look North weather presenter Owain Wyn Evans said: "They're extremely rare and happen when you have a faster stream of air moving at higher levels, above slower winds below."

The photograph joins a number of others taken recently of strange cloud formations.

Image source, Golcar Matt/WeatherWatchers
Image caption,
The GB cloud was spotted above the East Midlands in June
Image source, Thomas Beresford
Image caption,
Concorde cloud over the historic Ribblehead railway viaduct in North Yorkshire
Image source, Ben Gwynne
Image caption,
Moonbows are fairly rare and are made by moonlight rather than sunlight