March 16 (UPI) -- A swarm of dust storms and tornadoes tore across the southern United States over the weekend, killing at least 35 people and leaving behind wrecked communities. Sunday marked the third day of a storm system that has also brought large hail and flooding. The destruction appears to have begun around 3:22 p.m. on Friday when a dust storm associated with the storm system caused zero visibility conditions and multiple car crashes along I-70 in Sherman County, Kansas. Advertisement