Semi Jackknifes Across Highway as Lightning Rips Through Severe Storm Great Plains, U.S. — A violent storm turned a routine highway drive into a near-disaster when a semi truck lost control and jackknifed across multiple lanes, blocking traffic as lightning cracked overhead. Dashcam footage shows torrential rain hammering the roadway as visibility drops to near zero. A sudden flash of lightning illuminates the sky just as the tractor-trailer begins to slide, its trailer swinging wide and snappin