Glad you have a safe space. We have talked about having a shelter dug but figure that this old house has stood in the same spot for 70 years so surely it’s not in a tornado hotspot.
Living in Houston, my brother has experienced at least two 100-year weather events in the last few years (flooding due to Harvey, the Big Freeze). They happen.
After the first one he moved to higher ground and he bought a big generator. His was the only house on the block with heat during the recent cold spell/power outage.