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

By May 18 an eye developed and the storm reached its peak intensity with winds of 215 km/h (135 mph) before making landfall near Chittagong.

[2] On September 19, a tropical depression formed from an area of disturbed weather in the western Bay of Bengal.

Typhoon Linda killed 30 while crossing the Malay Peninsula, emerged into the Bay of Bengal on November 4.

[4] A broad trough of low pressure formed into a tropical depression on November 4 in the central Arabian Sea.

Vertical shear weakened it to a depression later that day, but on the 9th, just before making landfall on eastern Somalia, it restrengthened to a tropical storm.