I can remember standing in the doorway to our home that leads to the basement looking to the west and seeing what is described as a wall cloud approaching. There was a different smell in the air and rumble in the distance so that all of your senses are playing into what was happening. The wind will briefly still, literally becoming the calm before the storm. It could make the hair on your neck stand on end. It gave you a sense of raw power and that it was irresistible.