Below is a timeline of the 2006 Atlantic hurricane season, listing all the storm formations, strengthening, weakening, landfalls, extratropical transitions, as well as dissipation. The 2006 Atlantic hurricane season was a season in which an El Niño event stopped much tropical cyclone activity, especially later in the season. The season officially began on June 1, 2006, and lasted until November 30. For convenience and clarity, in the timeline below, all landfalls are bolded. The timeline also includes information which was not operationally released, meaning that information from post-storm reviews by the National Hurricane Center, such as information on a storm that was not operationally warned on, have been included.