NEW : Drivers trapped on highway in Oklahoma for 1 p.m. Tuesday . Oklahoma Lt. Gov . Emergency crews in Texas get stuck on their way to fire call . Whiteout conditions force plows from Texas highways . Amarillo , Texas gets up to 22 inches of snow in late last week .
NEW : Drivers trapped on highway in Oklahoma for 1 p.m. Tuesday . Emergency crews in Texas get stuck on their way to fire call . Whiteout conditions force plows from Texas highways . Amarillo , Texas gets up to 22 inches of snow in late last week .