What’s Causing All This Severe Weather?

PITTSBURGH (KDKA) — The devastation across the country from severe weather seems to be endless, from Oklahoma to Ohio. And it’s all caused by a subtropical jet stream.
“A line of very strong and powerful winds that generally, is hovering a couple of thousand feet above us,” says KDKA meteorologist Ron Smiley. “That pumps in the moisture, it pumps in the heat — and if you’ve walked outside today — you’ve noticed the moisture, you’ve noti