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Hurricane Irma is the strongest hurricane on record in the Atlantic Basin, outside the Caribbean Sea and the Gulf of Mexico. But here’s why it’s still “only” a Category 5 hurricane.
This story was originally published on CBC News. To read the rest of this news worthy story, please visit http://www.cbc.ca/news/technology/hurricane-category-saffir-simpson-1.4275997?cmp=rss.
