Hans Konings
This cloud heralds the Tramontana, a fierce wind from the Pyrenees. The locals have a love-hate relationship with the Tramontana because it can last for days and drive you crazy. But after it's finally over, the air is beautifully clean. The skies of the Tramontana were painted with great skill by Salvador Dalí in many of his paintings. Personally, I love the Tramontana.