Erin barreled through the Atlantic as a “formidable” Category 4 hurricane near Puerto Rico, after earlier reaching the top of the five-step, Saffir-Simpson scale.

Hurricane Erin raced from a Category 1 to a Category 5 storm. If Erin keeps ramping up, is there a Category 6?

After rapidly growing to a Category 5 storm in the span of 24 hours, Hurricane Erin is now back to Category 3 on the Saffir-Simpson Hurricane Wind Scale. As of Sunday morning, the National Hurricane ...

Reports from NOAA and Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds have increased to ...

August 16: 11:20AM AST @53rdWRS find #Erin is now a Category 5 Hurricane with maximum sustained winds of 160 mph. Visit https://t.co/tW4KeGdBFb for the latest pic.twitter.com/dEZuREiUa3 ...