http://www.youtube.com/watch?v=bRWacYBtuP4
http://www.freesound.org/samplesViewSingle.php?id=81047
WAIANAE, Hawaii- STH-10 test at Waianae High School recorded Thursday October 1, 2009 at 11:45 AM. You might be able to hear a Thunderbolt after the winddown but that's actually two sirens away at Waianae Mall Shopping Center.