Beautiful example of mammatus clouds in Cap Ferret France, on the evening of July 1 2018. Cap Ferret is on the atlantic coast of France, on the Arcachon bay, near the city of Bordeaux. I have been coming here all my life and never seen anything like these. Within a couple of hours of these clouds showing up, a line of very strong thunderstorms with very powerful cloud to ground lighting (“la foudre” in french) passed over Cap Ferret and the Arcachon bay, both amazing natural displays

Photo Credit: Thierry Copie