A dozen deaths are blamed on the weather across several states . Nearly 100 flights canceled flights at Dallas - Fort Worth airport . Sleet and heavy rain will cover parts of the southern states and Rockies . In Arkansas , authorities investigated 18 crashes in a two-mile section of Interstate 540 Monday morning , according to Lance King , troop commander for state police . The storm will make a turn toward the northeast this week .
A dozen deaths are blamed on the weather across several states . Nearly 100 flights canceled flights at Dallas - Fort Worth airport . Sleet and heavy rain will cover parts of the southern states and Rockies . The storm will make a turn toward the northeast this week .