When severe weather swept across Indiana, local communities expected their emergency warning systems to keep them safe. Work on a data centre inadvertently cut power to several emergency warning systems just before severe storms hit an Indiana county, sparking fierce backlash from residents over community safety and disaster preparedness. Before the severe weather arrived, four of the county's tornado warning sirens were knocked out of service after the severed power line cut off their electricity, Parnas explained. 'But actual tornado warning sirens that go off when you have a tornado nearby? Nevertheless, the incident has reignited debate over the need for robust backup warning systems in areas regularly exposed to tornadoes and other severe weather events.