Tue Jan 29, 2008 3:05 am
From my personal experiences, I would have to say the Thunderbolts that used to reside in Austin, Minnesota, simply because I was in 3rd grade at the time I lived there, and one night I had just gone to bed, it was pitch black outside, and all of a sudden I heard 3 or 4 Thunderbolts go off for a Tornado Warning, and there was just something about the Thunderbolts there that sounded spooky, I believe they were lower pitched (Rotor speed seemed slower than most Thunderbolts I hear).