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1986 North Indian Ocean cyclone season

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Field	Value
Basin	NIO
Year	1986
Track	1986 North Indian Ocean cyclone season summary.jpg
First storm formed	January 7, 1986
Last storm dissipated	November 11, 1986
Strongest storm name	Two
Strongest storm winds	45
Average wind speed	3
Total disturbances	8
Total depressions	4
Total storms	1
Fatalities	11
five seasons	1984, 1985, 1986, 1987, 1988
Atlantic season	1986 Atlantic hurricane season
East Pacific season	1986 Pacific hurricane season
West Pacific season	1986 Pacific typhoon season

The 1986 North Indian Ocean cyclone season was a below average season, becoming even more inactive than 1983. 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. Cyclones occurring between the meridians 45°E and 100°E are included in the season by the IMD.

Summary

ImageSize = width:860 height:180 PlotArea = top:10 bottom:80 right:50 left:20 Legend = columns:3 left:30 top:58 columnwidth:270 AlignBars = early DateFormat = dd/mm/yyyy Period = from:01/01/1986 till:30/11/1986 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/01/1986 Colors = id:canvas value:gray(0.88) id:GP value:red id:TD value:rgb(0,0.52,0.84) legend:Depression_(31–50_km/h) id:DD value:rgb(0.43,0.76,0.92) legend:Deep_Depression_(51–62_km/h) id:TS value:rgb(0.3,1,1) legend:Cyclonic_Storm_(63–88_km/h) id:ST value:rgb(0.75,1,0.75) legend:Severe_Cyclonic_Storm_(89–117_km/h) id:VS value:rgb(1,0.85,0.55) legend:Very_Severe_Cyclonic_Storm_(118–165_km/h) id:ES value:rgb(1,0.45,0.54) legend:Extremely_Severe_Cyclonic_Storm_(166–220_km/h) id:SU value:rgb(0.55,0.46,0.9) legend:Super_Cyclonic_Storm_(≥221_km/h) Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:07/01/1986 till:11/01/1986 color:DD text:"One (DD)" from:06/11/1986 till:10/11/1986 color:TS text:"Two (CS)" from:09/11/1986 till:11/11/1986 color:DD text:"Three (DD)" bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/01/1986 till:31/01/1986 text:January from:01/02/1986 till:28/02/1986 text:February from:01/03/1986 till:31/03/1986 text:March from:01/04/1986 till:30/04/1986 text:April from:01/05/1986 till:31/05/1986 text:May from:01/06/1986 till:30/06/1986 text:June from:01/07/1986 till:31/07/1986 text:July from:01/08/1986 till:31/08/1986 text:August from:01/09/1986 till:30/09/1986 text:September from:01/10/1986 till:31/10/1986 text:October from:01/11/1986 till:30/11/1986 text:November

Systems

Deep Depression One (1B)

|1-min winds=45 |3-min winds=30 Tropical Depression 1B developed southeast of Sri Lanka on January 7. It tracked northwestward, briefly strengthening to a 50 mph tropical storm before upper-level winds caused it to dissipate on the 11th.

Cyclonic Storm Two (2B)

|1-min winds=50 |3-min winds=45 A tropical disturbance slowly organized into a tropical depression on November 6 in the Bay of Bengal. It turned to the northeast, became a tropical storm, and reached a peak of 60 mph winds before hitting Bangladesh on the 9th. The storm dissipated on the 10th, after causing 11 casualties and heavy damage.

Deep Depression Three (3A)

|1-min winds=45 |3-min winds=30 From November 9 to the 11th, Tropical Storm Three existed over the open Arabian Sea, dissipating due to vertical shear.

References

(2012). "Frequently Asked Questions: What is the annual frequency of Cyclones over the Indian Seas? What is its intra-annual variation?". India Meteorological Department.
(May 25, 2009). "Bulletins Issued by Regional Specialized Meteorological Centre (RSMC) – Tropical Cyclones, New Delhi". India Meteorological Department.

Info: Wikipedia Source

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