High Quality Content by WIKIPEDIA articles! Tropical Storm Zeta was a late-developing tropical storm over the central Atlantic which formed after the 2005 Atlantic hurricane season had officially ended (on November 30), and continued into January 2006. Becoming a tropical depression at approximately midnight on December 30 (UTC),, it became the record-breaking thirtieth tropical cyclone of the 2005 Atlantic hurricane season and after intensifing into Tropical Storm Zeta six hours later, it become the season`s twenty-seventh named storm. Zeta was one of only two Atlantic tropical cyclones to span two calendar years (the other being Hurricane Alice in 1954-55).