Here is a video from Tornadovideos.net (of which I am a member, I suggest joining, cool vids!) where they interecept the Kirksville tornado. At 2:44 you can hear sirens, then at 3:03 you can hear a t-bolt wind up. Sounds so awesome, and with the tornado on the horizon. AWESOME. I have been praying for all the Kirksville and surrounding areas...I know that alot have a long road in front of them, but at least they have AWESOME supercharged sirens to warn them of tornadoes...
http://tinyurl.com/exqys