tornado drill, indiana state police

Madison County uses targeted tornado sirens to warn outdoor residents of storms, emphasizing multiple alert sources.
So-called ‘tornado sirens’ are not always activated in response to tornadoes. Here’s everything you need to know.
Douglas County will now only activate sirens in areas under imminent threat, as opposed to the entire county being alerted.
X-based enthusiast Moore Weather warned, “Tornado sirens going off in St. Louis county. Heading into the city. Take shelter ...