Ten (2005)

A low-pressure system that began as a tropical wave off the coast of Africa on 8 August organized into Tropical Depression Ten about 1200 UTC on 13 August 2005, roughly 925 nautical miles east of Barbados. The depression moved generally westward to west-northwestward but was short-lived: it lost organized thunderstorms and weakened to a remnant low by about 1800 UTC on 14 August. The remnant low drifted west-northwestward for several days and eventually degenerated back into an open tropical wave on 18 August near the Leeward Islands.

Tropical Depression Ten did not make any direct landfalls while it was a defined tropical cyclone. After weakening to a remnant low, its low-level circulation dissipated near Cuba around 21 August. A related mid-level spin that lingered east of the remnants later combined with a different westward-moving wave and helped contribute to the development of Hurricane Katrina, but Ten itself did not produce a landfalling hurricane.

The system’s peak intensity while classified as a tropical depression was estimated at about 30 knots (35 mph) with a minimum central pressure near 1008 millibars. It never reached tropical-storm strength or hurricane status.

Because Ten was short-lived and weakened quickly, it did not produce notable storm surge or widespread heavy rainfall tied directly to the depression. No specific surge heights or significant rainfall totals are listed in the official record for places such as islands or coastal counties for this system.

There were no reported deaths or major damage directly attributable to Tropical Depression Ten. The most notable aspect of this system in the official analysis is its role in the larger 2005 season: remnants and associated mid-level vorticity from Ten later interacted with another tropical wave and contributed to the formation of Hurricane Katrina. Forecasts and analyses focused on tracking the remnant low and its decay rather than anticipating a landfalling storm from Ten itself.