I've been told by a fellow YouTuber that he read an article that some cities will sound their sirens on Sunday for the 10-year 9/11 anniversary. I have found a few articles of some cities/counties that will activate their siren systems.
These places I have found will activate sirens:
Sioux City, Iowa
South Sioux City, Nebraska
Hudson County, New Jersey
Broken Arrow, Oklahoma
Webster County, Kentucky
Omaha, Nebraska
Teton County, Wyoming
Douglas County, Nebraska (?)
Guymon, Oklahoma
Hudson County, New Jersey
Oak Forest, Illinois
Renville County, Minnesota
Miami County, Kansas (?)
Albert Lea, Minnesota
Dearborn, Michigan
Armstrong County, Pennsylvania(Gaiser FD and others)
Does anybody know of any other places that will also do this?