Beyond Wind. The Case for a New Hurricane Scale.
The room learned something that shouldn't be as surprising as it was: the hurricane scale we've been reading on every news graphic for 50 years measures exactly one thing — wind speed. And that's the least of what actually hurts us. Dr. Collins — a Fellow of AAAS, the American Meteorological Society, and the American Association of Geographers — took us through the case she and her international team have been making in Forbes, Fox Weather, and the Tampa Bay Times: the Saffir-Simpson scale needs to grow up.
Milton: a Cat 3 at landfall, with storm surge and rainfall that would have registered on any water-inclusive scale as much worse. Helene: 200+ deaths, most from freshwater flooding hundreds of miles inland — a hazard the wind category never mentions. Ian: catastrophic damage patterned as much by socioeconomic factors as by wind exposure. The pattern was undeniable by slide four.
"The scale we've used for 50 years was designed for a specific question. The question has changed."
The Q&A opened up the harder questions — should the public use the scale to make evacuation decisions at all? What would a Category 6 actually communicate that Cat 5 doesn't? And the practical one: what should Tampans do with what they just learned? Dr. Collins closed with three concrete tips the room walked out repeating.