The 1966 North Indian Ocean cyclone season had no bounds, but cyclones tend to form between April and December, with peaks in May and November. 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 releases unofficial advisories. An average of four to six storms 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]
Season summary
Systems
Cyclone One (01B)
Category 1 tropical cyclone (SSHWS)
Duration
April 28 – May 4
Peak intensity
120 km/h (75 mph) (1-min);
Depression Two (02B)
Tropical depression (SSHWS)
Duration
May 16 – May 18
Peak intensity
45 km/h (30 mph) (1-min);
Depression Three (03B)
Tropical depression (SSHWS)
Duration
June 2 – June 3
Peak intensity
45 km/h (30 mph) (1-min);
Depression Four (04B)
Tropical depression (SSHWS)
Duration
June 15 – June 18
Peak intensity
45 km/h (30 mph) (1-min);
Depression Five (05B)
Tropical depression (SSHWS)
Duration
June 28 – June 29
Peak intensity
45 km/h (30 mph) (1-min);
Depression Six (06B)
Tropical depression (SSHWS)
Duration
July 16 – July 18
Peak intensity
45 km/h (30 mph) (1-min);
Depression Seven (07B)
Tropical depression (SSHWS)
Duration
July 27 – July 31
Peak intensity
45 km/h (30 mph) (1-min);
Depression Eight (08B)
Tropical depression (SSHWS)
Duration
September 2 – September 8
Peak intensity
45 km/h (30 mph) (1-min);
Cyclone Nine (09B)
Category 1 tropical cyclone (SSHWS)
Duration
September 27 – October 1
Peak intensity
120 km/h (75 mph) (1-min);
Tropical Storm Ten (10A)
Tropical storm (SSHWS)
Duration
September 28 – October 5
Peak intensity
65 km/h (40 mph) (1-min);
Depression Eleven (11B)
Tropical depression (SSHWS)
Duration
October 10 – October 12
Peak intensity
45 km/h (30 mph) (1-min);
Depression Twelve (12A)
Tropical depression (SSHWS)
Duration
October 21 – October 24
Peak intensity
45 km/h (30 mph) (1-min);
Cyclone Thirteen (13B)
Category 1 tropical cyclone (SSHWS)
Duration
October 31 – November 11
Peak intensity
120 km/h (75 mph) (1-min);
A cyclone struck Madras, India on November 3, killing over 50 people and leaving 800,000 people homeless.[3]
