Here's a video I found on YouTube of a tornado that hit the west side of Wichita on September 5th of 1992. At 21 seconds in you can hear a Model 5 along with some Thunderbolts and some loud high pitched single tone siren (not a 2001). At 2:28 you can also hear some loud single toned siren and a very spooky sounding TBolt.
http://www.youtube.com/watch?v=K-j8i_CifeY