1971 North Indian Ocean cyclone season

1971 North Indian Ocean cyclone season
Season summary map
Seasonal boundaries
First system formed	May 3, 1971
Last system dissipated	December 21, 1971
Seasonal statistics
Deep depressions	15
Cyclonic storms	7
Severe cyclonic storms	5
Total fatalities	>10,860
Total damage	Unknown
Related articles
1971 Atlantic hurricane season 1971 Pacific hurricane season 1971 Pacific typhoon season
North Indian Ocean tropical cyclone seasons 1969, 1970, 1971, 1972, 1973

The 1971 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]

Seasonal summary

Systems

Depression One (01B)

Depression (IMD)
Tropical storm (SSHWS)
Duration	May 3 – May 8
Peak intensity	45 km/h (30 mph) (3-min);

Deep Depression Two

Cyclonic Storm Three (03B)

Cyclonic storm (IMD)
Tropical storm (SSHWS)
Duration	June 3 – June 8
Peak intensity	85 km/h (50 mph) (3-min);

Deep Depression Four

Deep Depression Five

Deep Depression Six

Deep Depression Seven

Deep Depression Eight

Deep Depression Nine

Severe Cyclonic Storm Ten (10B)

Severe cyclonic storm (IMD)

Category 1 tropical cyclone (SSHWS)

Sunderbans and dissipated over the state of Bihar by the next day. 60 people were killed due to the storm. Deep Depression Eleven Extremely Cyclonic Storm Twelve (12B) Main article: 1971 Odisha cyclone Extremely severe cyclonic storm (IMD) Category 3 tropical cyclone (SSHWS)   Duration October 27 – November 1 Peak intensity 165 km/h (105 mph) (3-min); 966 hPa (mbar) On October 27 a tropical depression formed in the Paradip in Odisha, India, on October 29, and dissipated by the same day. The storm surge and flooding from the system caused 10,800 fatalities.[3] Severe Cyclonic Storm Thirteen (13A) Severe cyclonic storm (IMD) Category 1 tropical cyclone (SSHWS)   Duration October 27 – November 1 Peak intensity 110 km/h (70 mph) (3-min); A tropical cyclone moved through the Arabian Sea near the end of October. Severe Cyclonic Storm Fourteen (14B) Severe cyclonic storm (IMD) Category 1 tropical cyclone (SSHWS)   Duration November 3 – November 6 Peak intensity 100 km/h (65 mph) (3-min); Very Severe Cyclonic Storm Fifteen (15A) Very severe cyclonic storm (IMD) Category 1 tropical cyclone (SSHWS)   Duration December 14 – December 21 Peak intensity 130 km/h (80 mph) (3-min); This was a rare cyclone which threatened the Arabian Peninsula in the month of December. See also North Indian Ocean tropical cyclone 1971 Atlantic hurricane season 1971 Pacific hurricane season 1971 Pacific typhoon season Australian cyclone seasons: 1970–71, 1971–72 South Pacific cyclone seasons: 1970–71, 1971–72 South-West Indian Ocean cyclone seasons: 1970–71, 1971–72 References ^ "Frequently Asked Questions: What is the annual frequency of Cyclones over the Indian Seas? What is its intra-annual variation?". India Meteorological Department. 2012. Archived from the original on May 21, 2015. Retrieved June 8, 2012. ^ "Bulletins Issued by Regional Specialized Meteorological Centre (RSMC) – Tropical Cyclones, New Delhi" (PDF). India Meteorological Department. May 25, 2009. Archived from the original (PDF) on 2012-04-12. Retrieved July 16, 2012. ^ "Natural catastrophes and man-made disasters in 2008: North America and Asia suffer heavy losses" (PDF). Swiss Reinsurance Company Ltd. 21 January 2009. p. 38. Retrieved 23 May 2017. External links India Meteorological Department Joint Typhoon Warning Center Archived 2015-08-09 at the Wayback Machine Retrieved from "https://en.wikipedia.org/w/index.php?title=1971_North_Indian_Ocean_cyclone_season&oldid=1199607149"