In our area of the rural Midwest, a local AM station made a niche for themselves being the critical go to point of information during tornado, storm, flooding, and derecho warnings. Sadly as the storms keep showing up more often and more powerful, I've actual bought a couple more portable AM/FM radios spread around the house because of it.

There have been several times being in a car during those warnings that that AM station was the only reliable source of information.