Scientists disagree on the necessity of another hurricane category but it makes sense to consider it.
By most standards, a hurricane or typhoon well above the minimum Category 5 wind strength of 157mph... and clearly, 215 mph is WAY above that.I put together a table below of the hurricane categories and the different wind speed ranges according to the standard Saffir-Simpson scale. You can see that the categories increase with increasing wind speeds:Those wind speed increases are anywhere from 14 mph to 26 mph.
Those “conditions” are due to a warmer world -- more heat in the ocean and more warm moisture in the air increases the intensity of hurricanes.To that end, morning KPRC 2 Meteorologist Anthony Yanez asked the current National Hurricane Center director, Michael Brennan, about this idea and he isn’t rushing into it:
“At NHC, we’ve tried to steer the focus toward the individual hazards, which include storm surge, wind, rainfall, tornadoes and rip currents,, which only provides information about the hazard from wind. Category 5 on the Saffir-Simpson scale already captures “Catastrophic Damage” from wind, so it’s not clear that there would be a need for another category even if storms were to get stronger.
I certainly respect the director’s take on this. Saying that, wind drives surge and surge drives surf and the wind drives the moisture inland and wind differences create tornadoes. Without the wind, there isn’t a hurricane. From a social science point of view, we are accustomed to categories whether we are talking about the EF-Tornado scale or risks of Severe Weather based on colors of green, yellow, red, orange. Categories, indeed, raise our awareness.
In addition, the original Saffir-Simpson scale was created in 1971 based on what we could measure and what we could know. Fifty years later, we can measure more and we know more. Adding a Category recognizes that.
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