What a beautiful day - Everything about a thunderstorm is intensely saturated with anticipation and vibrancy; a good thunderstorm makes the whole world feel precarious and tingly and alive. It's gorgeous.
This is an awesome picture. Supercell Thunderstorm by Sean Heavey, nationalgeographic: A supercell thunderstorm rolls across the Montana prairie at sunset. This was a winning shot in the 2010 National Geographic Nature Gallery Photo Contest.