Because Gamma was the only twenty-fourth tropical storm to form in any single Atlantic hurricane season, Gamma also holds the record for being the earliest twenty-fourth tropical storm, reaching tropical storm strength on November 18. Gamma also extended the 2005 season's record for tropical storms to twenty-four, which was also enlarged four more times and ended at twenty-eight storms after Tropical Storm Zeta and a post-season addition of an unnamed subtropical storm which went originally unnoticed in October. Also, Gamma tied the record set during the 1992 Pacific hurricane season for most storms in a single basin monitored by NOAA.