This system began as an area of convection along the equator on October 28.

By that time, the system had developed an organized area of convection.

During the next six hours, Frank became much better organized with a large area of very deep convection near the center.

By October 28, the system was becoming better organized, with a large area of convection.

The next day, a small area of deep convection developed.

Later that day, the eye became distinct again within a perfectly round area of deep convection.

Late on August 9, an area of convection developed in association with the wave.

As the low moved over warmer waters, it was able to maintain an area of deep convection near its center.

The central area of deep convection moved across every island in the archipelago.

An area of convection first appeared on May 4.