The scope of Helene's destruction may not be fully known for quite some time, but the range of devastation from the Florida coast up through the southeast and into areas of Appalachia is nothing short of unprecedented. Chief Meteorologist Rich Wirdzek and Meteorologist Jake Grant unpack some of the details of how Helene was able to affect such a large area of the country, comparing it to similar storms in modern history such as Hurricane Katrina.