It was the first working day of the month here. Time for another siren video. I missed out on January and only did a sound recording of an RSH-10. This time, I was trapped at school, but this Thunderbolt faithfully sounds every test day, and is viewing distance from the University. Filmed it on the 4th floor stairway of the Sinclair Library.
http://www.youtube.com/watch?v=ZDVCMXtS2e0