Dr. Jason Persoff has spent more than 15 years chasing storms across Colorado and the Midwest. From tornadoes to tennis ball-sized hail, he's seen it all. Now he helps hospitals prepare for disasters.

I ONLY TOOK PICTURES WITH HER ONE TIME ... Top Headlines TIMELINE: Severe storms with hail and tornado risk return to Oklahoma late Tuesday, Wednesday Homicide investigation underway after man's body ...

Bishop Robert Brennan inspects fire damage at St. Edmund Church, recalling its resilience after Hurricane Sandy in 2012.

Both Fred Kerley and Noah Lyles took part in 400m racing recently, with the former easily winning his race while the latter ...

Some central Iowa communities got an unexpected, and possibly unwelcome, surprise Wednesday evening as thunderstorms rolled ...

Severe storms brought large hail to portions of Central and West Texas Tuesday night. See photos and video posted on social media.

Storms across Texas brought massive hail to some areas Tuesday night. The severe weather that hit Texas Tuesday is forecast to continue through at least Friday, with storms tracking eastward ...

NOW. THAT IS THE SOUND OF A LOT OF HAIL FALLING IN MARSHALLTOWN EARLIER THIS EVENING, AS STORMS ROLLED THROUGH. THIS WAS SENT TO US BY CHRIS ENGLER, AND BETH SALZMAN SENT THIS IN TO SHOW JUST HOW ...

Parts of the Omaha area saw a short burst of hail during Monday night's thunderstorm. KETV viewers sent in photos of the ...

Rain totals from the Lower Colorado River Authority showed anywhere from 0.2 inches of rain in South Austin to 1.28 inches of rain near Shoal Creek at West 45th Street. Another round of storms is ...