NEW : U.S. 's airport , world 's busiest , has 7 delays by 7 p.m . ET . Wind damage may be more prevalent than tornadoes , with gusts 3 inches . An expansive storm system stretches from Northeast to Ontario . Storms battering the southern United States put 32 million people from West Virginia to Florida at risk of facing severe weather Tuesday , CNN meteorologist Indra Petersons reported . Monday marked the first October U.S. deaths from tornadoes since Monday .
NEW : U.S. 's airport , world 's busiest , has 7 delays by 7 p.m . ET . Wind damage may be more prevalent than tornadoes , with gusts 3 inches . An expansive storm system stretches from Northeast to Ontario . Monday marked the first October U.S. deaths from tornadoes since Monday .