The 1975 North Indian Ocean cyclone season was part of the annual cycle of
tropical cyclone formation. The season has no official bounds but cyclones tend to form between April and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern
Indian Ocean. There are two main seas in the North Indian Ocean—the
Bay of Bengal to the east of the
Indian subcontinent and the
Arabian Sea to the west of India. The official
Regional Specialized Meteorological Centre in this basin is the
India Meteorological Department (IMD), while the
Joint Typhoon Warning Center (JTWC) releases unofficial advisories. An average of five tropical cyclones form in the North Indian Ocean every season with peaks in May and November.[1] Cyclones occurring between the meridians
45°E and
100°E are included in the season by the IMD.[2]
Two meandered slowly northwest, attaining hurricane-force winds between May 3 and May 5. The cyclone dissipated before making landfall.
Cyclone Three (03B)
Very severe cyclonic storm (IMD)
Category 1 tropical cyclone (SSHWS)
Duration
May 4 – May 8
Peak intensity
150 km/h (90 mph) (3-min);
On May 5, Cyclone Three formed offshore of
Thailand before recurving into
Burma on May 7 as a hurricane-force system. Three moved inland and dissipated on May 8.
Tropical Storm Five (05B)
Deep depression (IMD)
Tropical storm (SSHWS)
Duration
June 4 – June 7
Peak intensity
55 km/h (35 mph) (3-min);
Cyclone Sixteen (16A)
Very severe cyclonic storm (IMD)
Category 1 tropical cyclone (SSHWS)
Duration
October 19 – October 24
Peak intensity
155 km/h (100 mph) (3-min);
Cyclone Sixteen formed on 19 October and began to intensify, peaking as a Very Severe Cyclonic Storm or as a Category-1 equivalent storm on October 21. The storm made landfall at
Porbandar in
Gujarat at peak intensity. Sixteen dissipated on October 24.
The cyclone caused severe damage to livelihoods, killing 85 people. Total damages in Indian Rupees were estimated to be 75 crores.[citation needed]