Very intense high precipitation supercell storm moves south in the Nebraska Sand Hills south of Valentine, July 13, 2009. Winds gusted upwards of 60 mph into this storm. Tornado warning with the storm mentioned baseball size hail and winds in excess of 100 mph. As intense of a storm as it was, it only produced one short-lived small tornado. Traffic heading north up highway 83 would be driving right into the storm's forward flank downdraft, which contained large hail and intense rain.