@joanna How horrible.
It's absolutely terrifying to hear a roar in the distance and realize the 8 foot wide and ankle deep stream at the other end of the yard is, in actuality a river that is about to overflow and carry with it logs and other things. There isn't another sound quite like it. The high water mark on the garage/shed was a few inches below the rafters.
My great grandfather spent the night in a tree once because he didn't have time to make it to the ridge.