On a lark I ordered a weather radio from Amazon a little while back. Since I live in the storm-infested Midwaste, I thought it was a good idea.
It arrived, I plugged it in, and somewhat familiarized myself with how it worked.
And then two days later it was lit up, blaring as a tornado was making kindling of homes about a mile from where I live (West Omaha, Nebraska).
While the cell phone also kicked off, I like the redundancy and non-reliance on cell.
(Apparently the sound of the tornado warning is already imprinted in the mind of one of my cats. While I was watching tornado videos on YouTube, she crawled under the couch when she heard the familiar sound coming from my laptop.)