I had previously heard that category 5 storms were originally thought to be impossible, and only became possible due to global warming adding more energy into the atmosphere. The article however states that category 6 was technically possible as far back as 1979. Have these category 5, 6 and maybe higher always been possible, but just more improbable?
There were 19th century storms that were clearly 5s, at least. Whoever told you that didn’t know that the hell they were talking about, to put it mildly.
