2005, when Hurricane Katrina struck New Orleans, was the worst hurricane seasons since 1851, records from the National Oceanographic & Meteorological Laboratory at the National Oceanic & Atmospheric Administration show
Hurricane Katrina was just one of seven major hurricanes observed in the Atlantic basin that year, making about half of all tropical cyclones in 2005 major hurricanes on the Saffir-Simpson Hurricane Scala (Categories 3,4 and 5). 2005 was the year with most hurricanes in the Atlantic (15), followed by 2010 (12), including Hurricane Sandy
, and 1969 (also 12).
In 1995, 11 hurricanes were observed, while ten were counted each year in 2017, 2012 and 1998.