https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEir6rRRH9EL6e25R2SEHxn1jADNgQ1bflOroslOe6O3n6_TiCJo50iRkgVXX5m9NXXgD-Sj6h4Zu2VHkYJ0Lz0-tLSJENfz_cdnZwfeiXTSXaXIOmG6y13GZWkyzG4zQhWXqNeVL5hBcg/s1600/0027_467.jpg
http://listverse.com/2008/04/19/20-amazing-and-unusual-weather-phenomena/
http://www.youtube.com/watch?v=6ioN-3UWYrY&feature=PlayList&p=A5B4897404F34F8B&playnext_from=PL&playnext=1&index=2