Help NASA Find the Alphabet… From Space

Adam Voiland of NASA’s Earth Observatory found the photo above that looks like a huge, cloudy “V.” He’s even speculated about which font it may be. I think this looks like a “Z,” but Voiland clearly spends more time looking at satellite imagery than I do, so we’ll defer to him for now.
But what about the rest of the alphabet? Voiland would like to assemble the entire alphabet from space, so if you’ve seen a letter, let us know and perhaps your contribution will be featured by NASA or Wired.