Brilliant example of billow clouds captured on Wednesday 4th December in Bordj Bou Arreridj, Algeria. This cloud formation is in fact caused by Kelvin-Helmholtz instability (wave clouds) #severeweather #photograph #clouds
— WEATHER/ METEO WORLD (@StormchaserUKEU) December 5, 2019
Photos by 📸 Kamel Bordjo! pic.twitter.com/KLliU8QeE8