Helene, Milton losses expected to surpass "truly historic" $50 billion each

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.

Making that even more painful is that most of the damage - 95% or more in Helene's case - was not insured, putting victims in a deeper financial hole.

Storm deaths have been dropping over time, although Helene was an exception. But even adjusted for inflation, damages from intense storms are skyrocketing because people are building in harm's way, rebuilding costs are rising faster than inflation and human-caused climate change are making storms stronger and wetter, experts in different fields said.