Today, as we drove on the stretch between St. Louis and KC, we hit quite bad weather. Upon arriving home (FINALLY! Four long days of driving and we are home sweet home!), we turned on the news to find that the huge clouds we were encountering were called "shelf clouds" as they protruded at the top, which differ from "wall clouds." We had driven right under them straight into the storm. Here's a photo that Gary Lezak (from NBC Action Weather Plus) posted on FaceBook.