storm clouds in bergueda mountains, barcelona, pyrenees, spain

altocumulus atmosphere atmospheric barcelona bergueda big blue catalonia cloud clouds cloudscape cloudy condensation cumulonimbus danger dark day dramatic environment fabulous fantastic formation fortress ghostly heaven light lost majestic meteorology mountain mountains natural nature overcast overcloud palace pirineos pirineus pyrenees sky spain storm stormy sun sunlight sunny thunder thundercloud thunderstorm thundery weather white