The National Oceanic and Atmospheric Administration (NOAA) reports that the 2021 hurricane season was the third most-active in terms of named storms and represented the first time that the agency's list of storm names was exhausted for two years in a row.
According to NOAA, the season ended with 21 named storms, of which seven became hurricanes and four were classified as major hurricanes, with winds greater than 110 miles per hour.
For the seventh consecutive year, the first named storm formed before the official start of the season on June 1. Probably the most damaging of 2021's storms was Hurricane Ida, which came ashore in Louisiana as a major hurricane and caused massive flooding across the eastern half of the U.S. before finally heading out to sea.