These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.

An average of five tropical cyclones form in the North Indian Ocean every season with peaks in May and November.

[citation needed] This cyclone formed on 13 August and reached its peak intensity of a Category 1 storm by the next day.

[citation needed] This system developed off the eastern coast of southern India on November 23 and strengthened as it moved to the northeast.

A 10 feet (3.0 m) storm surge accompanied the system's approach to Bangladesh, which inundated several islands offshore.