Don’t live in Arkansas, but close enough we go there from time-to-time for recreation. You can get an underground shelter in your garage. I also use mine to do car repairs where I can reach the undercarriage from the steps (oil changes and such). Not 100% sure if they sell/install this brand in Arkansas, but FlatSafe makes a nice underground shelter that is large and made of fiberglass like a boat hull.
Otherwise, if you’re in a tornado warning go to a small room in the middle of your house on the 1st floor, closet or interior bathroom work best. If you’re in a tornado watch just make sure you have a plan for sheltering, bring cars into garage to protect from hail, secure stuff on your deck/patio, have batteries/flashlights at the ready in case power goes out, etc.