Katrina, Sandy and Harvey are making room for Helene and Milton as some of the most costly hurricanes on record. The two most recent storms are estimated to rack up $50 billion in damages, a threshold that only eight other hurricanes have met,

Monstrous hurricanes Helene and Milton caused so much complex havoc that damages are still being added up, but government and private experts say they will likely join the infamous ranks of Katrina, Sandy and Harvey as super costly $50-billion-plus killers.