2014 North Indian Ocean cyclone season

The 2014 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. The season included two very severe cyclonic storms, both in October, and one other named cyclonic storm, classified according to the tropical cyclone intensity scale of the India Meteorological Department. Cyclone Hudhud is estimated to have caused US$3.58 billion in damage across eastern India, and more than 120 deaths.

2014 North Indian Ocean cyclone season
Season summary map
Seasonal boundaries
First system formedJanuary 4, 2014
(record earliest, tied with 2019)
Last system dissipatedNovember 8, 2014
Strongest storm
NameNilofar
 • Maximum winds205 km/h (125 mph)
(3-minute sustained)
 • Lowest pressure950 hPa (mbar)
Seasonal statistics
Depressions8
Deep depressions5
Cyclonic storms3
Severe cyclonic storms2
Very severe cyclonic storms2
Extremely severe cyclonic storms2
Total fatalities183 total
Total damage$3.4 billion (2014 USD)
Related articles

The scope of this article is limited to the Indian Ocean in the Northern Hemisphere, east of the Horn of Africa and west of the Malay Peninsula. There are two main seas in the North Indian Ocean — the Arabian Sea to the west of the Indian subcontinent, abbreviated ARB by the India Meteorological Department (IMD); and the Bay of Bengal to the east, abbreviated BOB by the IMD. The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. On average, four to six storms form in this basin every season.

Season summary
Cyclone NilofarCyclone Hudhud

Under the influence of an active intertropical convergence zone, the season got off to one of its earliest starts on record, with a depression developing over the Andaman Sea during January 4.[1] Over the next couple of days the system moved westwards and made landfall on Sri Lanka, where it weakened into an area of low pressure.[1] Over the next few months the basin remained quiet, before the precursor cyclonic circulation to Depression BOB 02 developed during May 18.[1] As the cyclonic circulation developed it helped the southwest monsoon, advance into the Andaman Sea and parts of the Bay of Bengal, before it developed into a depression during May 21.[2] The depression was short lived and weakened into a remnant low, over the Bay of Bengal during May 23.[1] The southwest monsoon was subsequently delayed by six days setting in over the Indian state of Kerala and eventually moved over the state during June 6.[2] Over the next few days the monsoon set in further over the Bay of Bengal, while it was enhanced over the Arabian Sea by the formation of Cyclonic Storm Nanauk.[1][2] By June 18, the monsoon covered most of the North Indian Ocean and parts of Gujarat, Konkan & Goa, Odisha, Jharkhand, Bihar and Gangetic West Bengal.[2]

During June 19, an eastward propagation of the Madden-Julian Oscillation over the maritime continent, lead to the season's first area of low pressure developing over coastal parts of Bangladesh.[2] This helped the monsoon set in over India's north-eastern states and advance in to central India.[2] During the final week of June the monsoon weakened, which led to the emergence of heatwave conditions over eastern parts of coastal India.[2] The monsoon subsequently started to revive as it interacted with the mid-latitude westerlies and it advanced into parts of the Himalayas and northwest India by July 1.[2] During the first week of July an area of low pressure and several upper air cyclonic circulations caused the monsoon to advance further, where it covered the whole of Haryana, Madhya Pradesh, Punjab and Uttar Pradesh by July 7.[2] Over the next two weeks a trough of low pressure and a cyclonic circulation, helped advance the monsoon into remaining parts of the Arabian Sea, central and north-western India.[2] The India Meteorological Department (IMD) subsequently declared that the monsoon covered the whole of India on July 17, which was about two days later that normal.[2]

A change in the lower tropospheric circulation pattern over Rajasthan between September 16–17, from cyclonic to anti cyclonic, which indicated to forecasters that the southwest monsoon had started to withdraw from the region.[2] During September 23, after Rajasthan had remained mainly dry since September 17, the IMD declared that the withdrawal of the southwest monsoon had commenced.[2] Over the next couple of weeks the monsoon gradually withdrew from the Arabian Sea, north-western and central parts of India, before Very Severe Cyclonic Storm Hudhud formed on October 7.[2] After Hudhud had moved northwards and weakened into an area of low pressure, the southwest monsoon withdrew from the rest of India, Sri Lanka and the North Indian Ocean by October 18.[2] During October 18, northeast monsoon rains over Tamil Nadu and neighbouring peninsular India commenced.[2]

Systems

Depression BOB 01
Depression (IMD)
Tropical storm (SSHWS)
 
DurationJanuary 4 – January 7
Peak intensity45 km/h (30 mph) (3-min)  1004 hPa (mbar)

Under the influence of an active Intertropical Convergence Zone (ITCZ), a low pressure system formed over the Bay of Bengal on January 2, slowly organizing as it moved into a favorable environment. A Tropical Cyclone Formation Alert (TCFA) was issued by the Joint Typhoon Warning Center (JTWC). On January 4, the India Meteorological Department (IMD) commenced its advisories on the storm, designating it Depression BOB 01, followed by the JTWC classifying the storm a tropical cyclone. The storm intensified a little further, before it made landfall over north Sri Lanka on January 6 and degenerating into a low pressure area during the following day.[3]

The storm brought moderate rainfall to northern Sri Lanka. On January 6, Vavuniya reported the highest amount of rainfall of 210 mm (8.3 in), followed by Puttalam, Anuradhapura and Trincomalee receiving 50 mm (2.0 in) each. The depression was the first storm in the North Indian Ocean to form in the month of January since Cyclonic Storm Hibaru in 2005.[3]

Depression BOB 02
Depression (IMD)
 
DurationMay 21 – May 23
Peak intensity45 km/h (30 mph) (3-min)  1000 hPa (mbar)

A low pressure area formed over the Bay of Bengal on May 19. It slowly consolidated, prompting IMD to classify it as a Depression on May 21, followed by JTWC issuing a Tropical Cyclone Formation Alert (TCFA) in the following hours.[4][5] Over the following day, the depression continued moving north-northeastwards towards an area of high vertical wind shear. The JTWC cancelled the TCFA issued for the system, stating that high wind shear had caused the convection to start dissipating.[6] The storm continued losing convection, until it weakened into a well-marked low pressure area on May 23.[7] The remnant system persisted for several more days, moving over the Indian state of Odisha late on May 25, before dissipating on the following day.[8]

The depression brought much-needed relief to Odisha which had been suffering from a heat wave that claimed at least 22 lives. Coastal areas previously reporting temperatures near 40 °C (104 °F) fell below 30 °C (86 °F) during the system's passage.[9] Heavy rains affected many areas, including 208 mm (8.2 in) at Bhawanipatna which experienced temperatures of 45 °C (113 °F) days earlier. The highest 24‑hour rainfall was 210 mm (8.3 in) in Baleswar.[10] Six districts were placed under a flood alert due to the rains.[9] A bridge near Hatadahi in the Rayagada district was swept away by flooding.[10]

Cyclonic Storm Nanauk
Cyclonic storm (IMD)
Tropical storm (SSHWS)
 
DurationJune 10 – June 14
Peak intensity85 km/h (50 mph) (3-min)  986 hPa (mbar)

Under the influence of an active southwest monsoon surge, a low pressure area formed over the Arabian Sea on June 9. It slowly organized, and was classified tropical storm 02A by the JTWC in the early hours of June 10. In the following hours, the IMD upgraded the storm to a depression and subsequently a deep depression, designating it "ARB 01". On June 11, the system was upgraded to Cyclonic Storm intensity and was named Nanauk by the IMD as it continued to intensify under favorable environmental conditions. The following day, Nanauk reached its peak intensity with a minimum central pressure of 986 hPa (29.12 inHg) and 3-minute sustained winds of 85 km/h (53 mph). As it tracked further northwestwards, the storm encountered moderate vertical wind shear, dry air and low sea surface temperatures, causing it to weaken rapidly into a Depression on June 13. A low-level steering flow deflected the storm to take a northward path, and the system was last noted as a well-marked low pressure area on June 14.[11]

Land Depression 01
Depression (IMD)
 
DurationJuly 21 – July 23
Peak intensity45 km/h (30 mph) (3-min)  988 hPa (mbar)

On July 19, an upper level cyclonic circulation lay over the north-eastern Bay of Bengal and parts of Gangetic West Bengal and Odisha.[2] Over the next day an area of low pressure formed, under the influence of this cyclonic circulation and rapidly concentrated into a Depression during July 21, over Odisha and West Bengal.[2] Over the next couple of days the system moved westwards, before it weakened into an area of low pressure during July 23 over northwest Madhya Pradesh.[1] The area of low pressure subsequently merged with the monsoon during July 25, while the cyclonic circulation persisted over Rajasthan and Punjab, before it was last noted during July 31.[1] Under the influence of the depression, heavy to extremely heavy rainfall was recorded in the states of Odisha, Chhattisgarh, Madhya Pradesh and Vidarbha.[1] In Odisha a total of 12 people lost their lives, while around 29,479 hectares (72,840 acres) of crops were affected and 1351 houses were damaged.[1][2]

Land Depression 02
Deep depression (IMD)
 
DurationAugust 4 – August 7
Peak intensity55 km/h (35 mph) (3-min) 

On 3 August, a low pressure area formed over the Bay of Bengal under the influence of an upper air cyclonic circulation.[12] The system slowly intensified into a depression the following day while being located inland over Midnapore. The depression moved further inland, underwent intensification and was upgraded to a deep depression the same day. The storm moved further westwards and weakened into a depression on August 5,[13][14] and was last noted as a well marked low pressure area on August 7 over northwestern Madhya Pradesh.

The storm activated a flood situation in Odisha, affecting 12 districts of the state. Waterlogging was reported in the cities of Cuttack and Bhubaneshwar, and nearly 200 villages were affected after the Baitarani river swelled more than two meters over its flood danger level.[15] Sambalpur district received the highest amount of rainfall at 336.8 millimetres (13.26 in), followed by Balasore district receiving 226.4 millimetres (8.91 in).[16][17] Seven people were reported to be missing after two trawlers capsized off the coast.[18] The state government evacuated about 17,000 people from low-lying areas. 23 deaths were reported due to torrential rainfall.[19]

Extremely Severe Cyclonic Storm Hudhud
Extremely severe cyclonic storm (IMD)
Category 4 tropical cyclone (SSHWS)
 
DurationOctober 7 – October 14
Peak intensity185 km/h (115 mph) (3-min)  950 hPa (mbar)
Main article: Cyclone Hudhud

Under the influence of an upper air cyclonic circulation, a low pressure area formed over the Andaman Sea on October 6.[20] The system drifted westward and intensified into a depression and subsequently into a deep depression the next day, followed by the Joint Typhoon Warning Center (JTWC) issuing a Tropical cyclone formation alert (TCFA).[21] Owing to favorable environmental conditions, the storm intensified into a cyclonic storm on October 8 and was named Hudhud.[22][23] Its convection consolidated in the following hours, and Hudhud became a Severe Cyclonic Storm on October 9. Hudhud underwent rapid deepening in the following days, intensified into a Very severe cyclonic storm and developed a well-defined eye feature. Shortly before landfall near Visakhapatnam, Andhra Pradesh on October 12, Hudhud reached its peak strength with three-minute wind speeds of 175 km/h (109 mph) and a minimum central pressure of 950 hPa (28.05 inHg).[24] The system drifted northwards over land and was last noted as a well-marked low pressure area over east Uttar Pradesh on October 14.[25]

Hudhud brought extensive damage to the coastal districts of Andhra Pradesh. At least 124 deaths were reported due to the storm and damage amounted to ₹21,908 crore (US$3.58 billion).[26]

Extremely Severe Cyclonic Storm Nilofar
Extremely severe cyclonic storm (IMD)
Category 4 tropical cyclone (SSHWS)
 
DurationOctober 25 – October 31
Peak intensity205 km/h (125 mph) (3-min)  950 hPa (mbar)
Main article: Cyclone Nilofar

In late October, a low pressure area formed over the Arabian Sea. It slowly consolidated and a Tropical Cyclone Formation Alert (TCFA) was issued by the Joint Typhoon Warning Center (JTWC) on October 24.[27] The following day, the India Meteorological Department (IMD) classified the storm as a depression, designating it ARB 02, and the JTWC estimated tropical storm winds at the storm's center, starting advisories for the system.[28] On October 26, the system remained stationary and intensified into a Deep Depression. Subsequently, the IMD reported the storm had intensified into a cyclonic storm, and named it Nilofar.[29][30] The following day, the IMD upgraded the storm into a severe cyclonic storm and further to a very severe cyclonic storm, and the JTWC reported hurricane-strength winds at Nilofar's center as it meanwhile developed an eye feature.[31][32][33] On October 28, Nilofar underwent rapid deepening throughout the day, reaching a peak strength of 950 mbar (28.05 inHg) with wind speeds exceeding 205 km/h (127 mph), tied with Hudhud. Over the following days, the storm recurved northeastwards and experienced high vertical wind shear, causing it to weaken rapidly into a minimal cyclonic storm on October 30. The low-level circulation center of the storm became exposed in the following hours and IMD downgraded the storm into a well-marked low pressure area on October 31, issuing its final advisory for the system.

Deep Depression BOB 04
Deep depression (IMD)
Tropical storm (SSHWS)
 
DurationNovember 5 – November 8
Peak intensity55 km/h (35 mph) (3-min)  1000 hPa (mbar)

During November 3, an area of low pressure developed over the Bay of Bengal, under the influence of active northeast monsoon conditions. On November 5, the IMD identified the system as a depression and designated it with the identifier 'BOB 04'.[34] This was followed by the JTWC issuing a TCFA[35] and subsequently initiating advisories on the system. The JTWC designated it '05B' and was reporting 35 knots (65 km/h; 40 mph) winds around the center on November 6.[36] Later that day, the IMD upgraded BOB 04 into a Deep Depression.[37] The system drifted northwards over the next couple of days, maintaining its intensity. Located between two subtropical ridges, BOB 04 mostly showed quasi-stationary motion.[38] However, albeit the adequately favorable conditions for further intensification, BOB 04 failed to intensify further. This resulted in the IMD downgrading the system into a Depression[39] and further into an area of low pressure by November 8.[40]

Season effects

This is a table of all storms in the 2014 North Indian Ocean cyclone season. It mentions all of the season's storms and their names, durations, peak intensities (according to the IMD storm scale), landfall(s) – denoted by bold location names – damages, and death totals. Damage and death totals include the damage and deaths caused when that storm was a precursor wave or extratropical low, and all of the damage figures are in 2014 USD.

Name Dates active Peak classification Sustained
wind speeds		 Pressure Areas affected Damage
(USD)		 Deaths Refs
BOB 01January 4 – 7Depression45 km/h (30 mph)1004 hPa (29.65 inHg)Sri LankaMinorNone
BOB 02May 21 – 23Depression45 km/h (30 mph)1000 hPa (29.53 inHg)Andaman and Nicobar Islands, IndiaMinorNone
NanaukJune 10 – 14Cyclonic storm85 km/h (50 mph)986 hPa (29.11 inHg)Pakistan, OmanNoneNone
LAND 01July 21 – 22Depression45 km/h (30 mph)Not SpecifiedIndiaMinor12[1]
LAND 02August 4 – 7Deep depression55 km/h (35 mph)Not SpecifiedIndiaMinor47[1]
HudhudOctober 7 – 14Extremely severe cyclonic storm185 km/h (115 mph)950 hPa (28.05 inHg)Andaman and Nicobar Islands, India,visakhapatnam, Nepal$3.58 billion124[26][41][42][43][44]
NilofarOctober 25 – 31Extremely severe cyclonic storm205 km/h (125 mph)950 hPa (28.05 inHg)India, PakistanMinorNone
BOB 04November 5 – 8Deep depression55 km/h (35 mph)1000 hPa (29.53 inHg)NoneNoneNone
Season aggregates
8 systemsJanuary 4 –
November 8		205 km/h (125 mph)950 hPa (28.05 inHg)$3.58 billion183
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See also

References
  1. Report on cyclonic disturbances over North Indian Ocean during 2014 (PDF) (Report). India Meteorological Department. January 2015. Archived from the original (PDF) on March 24, 2016. Retrieved March 24, 2016.
  2. Monsoon 2014: A Report (PDF) (Report). India Meteorological Department. January 22, 2015. Archived (PDF) from the original on March 24, 2016. Retrieved March 24, 2016.
  3. India Meteorological Department. "A Preliminary Report on Depression over Bay of Bengal (4–7 January, 2014)" (PDF). India Meteorological Department. Archived from the original (PDF) on 10 May 2014. Retrieved 10 May 2014.
  4. Regional Specialized Meteorology Center, New Delhi. "Depression BOB 02 Bulletin 1 issued at 0300 UTC on 21 May 2014" (PDF). India Meteorological Department. Archived from the original (PDF) on 21 May 2014. Retrieved 21 May 2014.
  5. Joint Typhoon Warning Center. "Tropical Cyclone Formation Alert for the North Indian Ocean, issued at 0730 UTC of 22 May 2013". Joint Typhoon Warning Center. Archived from the original on 23 May 2014. Retrieved 23 May 2014.
  6. Joint Typhoon Warning Center. "Tropical Cyclone Formation Alert for North Indian Ocean on May 23, 2014, 0200 UTC". Joint Typhoon Warning Center. Archived from the original on 23 May 2014. Retrieved 23 May 2014.
  7. Regional Specialized Meteorological Center, New Delhi. "Depression BOB 02 Bulletin 11, issued at 10:30 AM IST (0500 UTC), 23 May 2014" (PDF). India Meteorological Department. Archived from the original (PDF) on 23 May 2014. Retrieved 23 May 2014.
  8. "Invest 92B Operational Best Track" (.TXT). Joint Typhoon Warning Center. United States Navy. May 27, 2014. Archived from the original on May 27, 2014. Retrieved May 29, 2014.
  9. "Heavy Rains Lash Odisha; Flood Alert in 6 Districts". Bhubaneswar, India: The New Indian Express. May 26, 2014. Archived from the original on May 29, 2014. Retrieved May 29, 2014.
  10. "Heavy rains create flood scare in Odisha". Bhubaneswar, India: Odisha Sun Times. May 26, 2014. Archived from the original on May 30, 2014. Retrieved May 29, 2014.
  11. India Meteorological Department. "RSMC New Delhi: Preliminary Report on Cyclonic Storm Nanauk" (PDF). India Meteorological Department. Archived from the original (PDF) on 22 June 2014. Retrieved 22 June 2014.
  12. India Meteorological Department. "Tropical Weather Outlook for the North Indian Ocean issued on 3 August 2014 at 0600 UTC" (PDF). Archived from the original (PDF) on 4 August 2014. Retrieved 4 August 2014.
  13. India Meteorological Department. "Information on Deep Depression over North Chattisgarh and Neighbourhood". Meteorological Center Bhubaneshwar. Archived from the original on 5 August 2014. Retrieved 5 August 2014.
  14. India Meteorological Department. "All India Weather Bulletin (Evening), 5 August 2014" (PDF). Archived from the original (PDF) on 5 August 2014. Retrieved 5 August 2014.
  15. "Baitarani wreaks havoc in Odisha, affects nearly 200 villages". Odisha Diary. Archived from the original on 5 August 2014. Retrieved 5 August 2014.
  16. "Flood situation in Odisha become worse in 12 districts, 24 gates of Hirakud to be opened by noon". Odisha Diary. Archived from the original on 5 August 2014. Retrieved 5 August 2014.
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  18. "Lost trawlers traced, seven missing". Deccan Herald. DHNS. Retrieved 5 August 2014.
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  20. "Tropical Weather Outlook for North Indian Ocean Issued at 0600 UTC of October 6, 2014" (PDF). India Meteorological Department. Archived from the original (PDF) on 7 October 2014. Retrieved 7 October 2014.
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  22. "Tropical Cyclone 03B (Three) Warning #01 Issued at 0300 UTC of October 8, 2014". Joint Typhoon Warning Center. Archived from the original on October 8, 2014. Retrieved 8 October 2014.
  23. "Cyclonic Storm, 'HUD HUD' over north Andaman Sea & adjoining southeast Bay of Bengal" (PDF). India Meteorological Department. Archived from the original (PDF) on October 8, 2014. Retrieved 8 October 2014.
  24. "Tropical Cyclone Hudhud Advisory 34 issued at 0700 UTC of 12 October 2014" (PDF). India Meteorological Department. Archived from the original (PDF) on 12 October 2014. Retrieved 12 October 2014.
  25. "BOB 03 Advisory 54 issued at 1300 UTC, October 14, 2014" (PDF). India Meteorological Department. Archived from the original (PDF) on 15 October 2014. Retrieved 15 October 2014.
  26. "Cyclone Hudhud caused Rs 21,908 crore loss, agriculture sector worst hit: Andhra government". Daily News and Analysis. 19 December 2014. Retrieved 6 February 2015.
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  28. "Tropical Cyclone 04A (Four) Warning #01 Issued on 25 October 2014, 1500 UTC". Joint Typhoon Warning Center (JTWC). Archived from the original on 25 October 2014. Retrieved 25 October 2014.
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  30. "Cyclonic Storm 'NILOFAR' over westcentral and adjoining southwest Arabian Sea. Pre-Cyclone Watch for north Gujarat coast" (PDF). India Meteorological Department. Archived from the original (PDF) on 26 October 2014. Retrieved 26 October 2014.
  31. "Severe Cyclonic Storm Nilofar Warning 14 issued at 0230 UTC, 27 October 2014" (PDF). India Meteorological Department. Archived from the original (PDF) on 27 October 2014. Retrieved 27 October 2014.
  32. "Very Severe Cyclonic Storm Nilofar Warning 16 issued at 0800 UTC of 27 October 2014" (PDF). India Meteorological Department. Archived from the original (PDF) on 27 October 2014. Retrieved 27 October 2014.
  33. "Tropical Cyclone 04A (Nilofar) Warning #07 Issued on 27 October 2014 at 0300 UTC". Joint Typhoon Warning Center (JTWC). Archived from the original on 27 October 2014. Retrieved 27 October 2014.
  34. "Depression BOB04 from IMD 2014-11-05". India Meteorological Department. Archived from the original on 7 November 2014. Retrieved 11 November 2014.
  35. "TCFA for Cyclone 05B". Joint Typhoon Warning Center. Archived from the original on 7 November 2014. Retrieved 11 November 2014.
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  37. "Deep Depression BOB04 from IMD 2014-11-06". India Meteorological Department. Archived from the original on 7 November 2014. Retrieved 11 November 2014.
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  40. "IMD National Bulletin BOB04/2014/15" (PDF). India Meteorological Department. Archived from the original (PDF) on 8 November 2014. Retrieved 11 November 2014.
  41. "Hudhud fallout: 9 more death cases; Vizag on road to normalcy". 15 October 2014. Retrieved 15 October 2014.
  42. "Cyclone Hudhud: 2 killed in Odisha, 68,000 people moved to safer places". 12 October 2014. Retrieved 12 October 2014.
  43. "Cyclone Hudhud impact: Heavy rain kills 18 in Uttar Pradesh". 15 October 2014. Retrieved 15 October 2014.
  44. "Nepal vows new safety rules for trekkers after deaths of 41 killed in blizzard, avalanches". 21 October 2014. Retrieved 22 October 2014.
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