Awhile back it was posted that Tulsa was to get new sirens, and I didn't think it was true, well guess I was wrong!
Whelen 2900's will be the replacements for the old 3016 sirens and some of the newer wps 4000 will remain or be moved.
Here is a news clip about it.
http://www.ktul.com/news/stories/0207/399656.html