Early on August 3, Colin's forward motion increased exponentially, and the cyclone was unable to maintain a closed circulation; it degenerated into a trough at 1800 UTC, although tropical storm-force winds persisted.
Colin's forward motion increased exponentially. This was early on August 3. The cyclone was unable to maintain a closed circulation. This was early on August 3. It degenerated into a trough at 1800 UTC. Tropical storm-force winds persisted.