The real fun will be in Tornado Alley, where the cold front meets the hot western front. They’re either going to be lots of tornadoes, or the contrast will be too great and they will get canceled out.
We had 18 degrees here in NW Arkansas two days ago. Today it was warm and I worked outside in shorts all day long.
Earliest cold spell I can ever remember. Usually it is the middle of Nov before the cold weather sets in. 1976-1977 was a dozy of cold and snow. It was used as proof we were entering THE COMING ICE AGE!