We are currently in MI on a trip from Oregon. We came through AZ and NM. Then we were going to cross central TX and see LA, MS and visit friends in TN. After monitoring the weather we headed north and went through north TX and OK just ahead of some tornadoes, then through MO, which has been having bad weather since. We had one thunderstorm in Amarillo that pelted us with grape sized hailstones. Fortunately, we suffered no damage. From IN to MI, we have had no threatening weather although a severe thunderstorm passed through Cheboygan, just south of our location in Mackinaw City.
My advice is to closely monitor the weather, and don't go where you could get into trouble. If you are planning to visit friends or relatives in the places you have listed, I am sure they would rather have you alive to call them and say "we can't make it," rather than risk your life. We have found that every bit of this great country is beautiful, even if we didn't see some of the places and people we had planned to see. JMHO