Why isn't something like an Amber Alert used for Tornado Warnings? I'm in Ohio and I agree, the sirens are completely ignored even when there IS a warning and if you're not watching the news you're effectively out of the loop.
Meanwhile if a child is abducted/goes missing you get a text on your phone within minutes with the car she was last seen in, the license plate, the description of the child, etc.
They've started implementing this, but I'm not sure it's been released everywhere yet.