The low-level circulation center started to get consolidated with deep convective bands wrapping into it.

The center became well organized with convective bands tightly wrapped into it.

Although thunderstorm activity was initially minimal around the center of circulation, the depression had a well-defined convective band.

Subsequently convective bands began to form near the center.

Later in the day, most of the convective bands were confined to the eastern periphery of the system.

By September 15, the area of disturbed weather included some convective bands.

On October 18, some convective bands returned to the system.

Its development can be preceded by a narrow, dense, C-shaped convective band.

Early on December 5, the system had convective bands spiraling into and wrapping tightly around the low level circulation center.

It gradually became better organized, with a large convective band in the eastern semicircle.