This year’s hurricane season has been on for the the record books. Officially the Atlantic Basin hurricane season runs from the 1st of June through November 30th. We are just over a month away from the end of the season but that doesn’t necessarily mean we are done with tropical storms or hurricanes. History gives us many examples of tropical cyclones occurring well outside of the recognized official time frame. The 2005 hurricane season was one year that went into overtime with storms showing up late.
Hurricane Epsilon November 29 – December 8
That year Tropical Storm Epsilon formed on November 29, 2005, just before the official season’s end. On December 2, Tropical Storm Epsilon strengthened into a hurricane becoming first storm since Hurricane Lili in 1984 to reach hurricane strength after the official end of a season. That same season a month past the deadline of November 30th Tropical Storm Zeta was born.
Tropical Storm Zeta December 30, 2005 – January 6, 2006
Zeta became one of the latest-forming tropical cyclones ever to develop in the recorded history of Atlantic hurricane seasons; the only later storm was Hurricane Alice of 1954–55, which is estimated to have become tropical on December 30, 1954.
While it’s true that most tropical cyclone activity will occur from June through November in the Atlantic and Gulf of Mexico, some years have gone into extra innings.
Meteorologist Mike Morrison