http://www.newsmeback.com/story.php?title=largest-hailstone-confirmed-in-hawaii-%7C-supercell-thunderstorms-hawaii-tornado-%7C-livescience A grapefruit-size hailstone that fell on the Hawaiian island of Oahu on March 9 has now been confirmed as the largest on record. Sun, 25 Mar 2012 16:32:05 CDT en