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Scientists propose Category 6 hurricanes as storm intensity increases
Proponents say 18 Category 5 hurricanes since 2005 show the scale no longer reflects the strongest storms.
As hurricane season officially starts on Monday, scientists are debating whether the Saffir-Simpson Hurricane Scale should include a Category 6 to account for increasingly intense storms.
Climate scientists Michael Wehner and James Kossin proposed the new category, citing research showing strong hurricanes are becoming more frequent and intense in the Atlantic basin.
Hurricane Melissa made catastrophic landfall in Jamaica last October with maximum sustained winds of 190 miles per hour, exemplifying the intensity proponents cite for a new category.
Proponents suggest redefining Category 5 to include sustained winds of 157 mph to 192 mph, with anything higher classified as Category 6.
Critics argue a Category 6 is unnecessary since Category 5 is already considered "catastrophic," while the National Hurricane Center is not currently considering adding one.