Over the past several years I've driven through Terre Haute, Indiana on my way to Indianapolis. I've been to downtown Terre Haute and other parts of the city and have never seen a siren. I thought that was kind of strange since Terre Haute has a large population (60,000-plus) and is tornado-prone, though it's not technically in "Tornado Alley."
Today I happened across an online article about sirens going off in Terre Haute for a recent Tornado Warning. I was surprised, since I've never seen any. After doing a little research I discovered that there are sirens on the campus of Indiana State University, one at ISU's apartemnts, and at the Rose-Hulman Institute of Technology. ISU has at least one Federal STH-10. I'm not sure what the other one is, though I would imagine it's possibly another STH-10. Not sure what Rose-Hulman has on their campus.
So, I'm not sure if only ISU and Rose-Hulman have sirens and the rest of the city does not, or what.
If anyone's familiar with Terre Haute, can you elaborate on this? I did find a video on YouTube of a Tornado Warning in Terre Haute and there was a tornado siren blaring in the background, which did sound like an STH-10, with a long wind-down.