Overview

PHYSICAL GEOGRAPHY
Physical Geography · GS‑I

Tropical Cyclones
Major Cyclones in India and Odisha, 1999 to 2024
12 storms Odisha list9,887 to 6 deaths, 1999 to 20244 stages IMD warnings13 countries name the storms
digitallylearn.comUPSC‑CSE Physical Geography

The list of cyclones in Odisha from 1999 to 2024 runs from the 1999 Odisha Super Cyclone, which killed 9,887 people by the India Meteorological Department's count, to Cyclone Dana in October 2024, which killed six. Odisha has the highest frequency of cyclones of any Indian coastal state. Its storms, together with Amphan in West Bengal, Tauktae and Biparjoy in Gujarat and the cyclones of the Tamil Nadu and Andhra coasts, are the major cyclones in India of the last 25 years. The fall in deaths came from forecasts, four-stage warnings and mass evacuation.

List of Cyclones in Odisha from 1999 to 2024 with Wind Speed

Odisha Cyclone Name List: Landfall, Wind Speed and Deaths

Odisha has faced a damaging cyclone almost every other year since 1999. Some of the major storms crossed the Odisha coast; others made landfall in a neighbouring state and still brought wind, rain or landslides to Odisha.

Table 1. Major cyclones that struck or affected Odisha, 1999 to 2024, with IMD peak three-minute winds and deaths in all affected areas
Cyclone and year Landfall Peak wind (km/h) Deaths and impact
October 1999 cyclone Near Gopalpur, Odisha 165 198 deaths; struck 11 days before the super cyclone
1999 Odisha Super Cyclone Near Paradip, 29 October 1999 260 9,887 deaths by IMD's count; 8,119 in Jagatsinghpur
Phailin, 2013 Near Gopalpur, 12 October 215 46 deaths; close to 10 lakh evacuated in Odisha
Hudhud, 2014 Visakhapatnam, Andhra Pradesh 185 116 deaths in all; relief camps in Andhra Pradesh and Odisha
Titli, 2018 Near Palasa, Andhra Pradesh, 10 October 150 85 deaths in India, 77 of them in Odisha
Fani, 2019 Puri, 3 May 215 81 deaths in all; over 12 lakh evacuated in Odisha
Bulbul, 2019 West Bengal, 9 November 140 Heavy rain and crop damage in Odisha from its outer bands
Amphan, 2020 Near Bakkhali, West Bengal, 20 May 240 133 deaths in all; 1,704 shelters opened in Odisha
Yaas, 2021 About 20 km south of Balasore, 26 May 140 20 deaths in India and Bangladesh
Gulab, 2021 North of Kalingapatnam, Andhra Pradesh, 26 September 85 Outer rainbands reached south Odisha
Jawad, 2021 None; it weakened off the coast in December 75 IMD had forecast that Odisha would bear the most impact
Dana, 2024 Near Bhitarkanika, 24 October 110 6 deaths in all, 1 in Odisha; 3.62 lakh evacuated
Map of the Odisha coast with numbered landfall points: Gopalpur (October 1999 cyclone and Phailin 2013), near Paradip (1999 Super Cyclone), Puri (Fani 2019), south of Balasore (Yaas 2021), near Bhitarkanika (Dana 2024), and neighbouring landfalls at Visakhapatnam (Hudhud 2014), Palasa (Titli 2018) and Bakkhali in West Bengal (Amphan 2020).

Why Odisha Is India's Most Cyclone-Prone Coast

India's coastline is exposed to nearly 10 per cent of the world's tropical cyclones, and most of them form over the Bay of Bengal and strike the east coast. About five cyclones form in the North Indian Ocean in a year, and the Bay of Bengal produces about four for every one in the Arabian Sea. The season has two peaks, a primary peak in November and a secondary peak in May, which is why most of Odisha's storms arrive in October, November or May.

Within the Bay of Bengal, Odisha has the highest frequency of cyclones and Andhra Pradesh the highest frequency of severe cyclonic storms; on the west coast, Gujarat is the most vulnerable. Between 1891 and 1990, 262 cyclones, 92 of them severe, struck a 50 km strip along the east coast, against 33 on the west coast, 19 of them severe.

  • More storms in the Bay: Cyclones there form over the south-east Bay and the Andaman Sea, and some are remnants of Pacific typhoons that cross the South China Sea.
  • Fewer in the Arabian Sea: Most Bay of Bengal storms weaken over land before they can reach the Arabian Sea, whose relatively cooler water also holds back formation and intensification.

The conditions a cyclone needs also explain why some tropical seas have almost none. A cyclone needs a large sea surface warmer than 27 °C, the Coriolis force, little change of wind with height, a pre-existing low and divergence aloft. In the South Atlantic the Intertropical Convergence Zone drops only one to two degrees south of the equator, so the low-pressure trough in which cyclones begin seldom forms there, and strong wind shear breaks up most of the disturbances that do form.

Odisha Super Cyclone 1999: Landfall, Storm Surge and Death Toll

October 1999 Twin Cyclones: Gopalpur Storm and Paradip Super Cyclone

Odisha was hit twice in October 1999. The first storm, an extremely severe cyclonic storm, crossed the coast near Gopalpur in the south and killed 198 people. A far stronger storm struck the central coast 11 days later, where the ground was already waterlogged.

The 1999 Odisha Super Cyclone crossed the coast near Paradip on 29 October 1999, on the stretch between Puri and Kendrapara. Its sustained winds were about 260 km/h and its central pressure 912 hPa, which makes it the most intense cyclonic storm over the North Indian Ocean in the region's recorded history. It was also the largest cyclone of the basin between 1891 and 2007. Paradip recorded about 520 mm of rain in the 24 hours to 8.30 a.m. on 30 October.

Water, not wind, did most of the killing. A storm surge of 5 to 6 metres carried sea water up to 35 km inland; the Ministry of Urban Development put the peak surge at 6.7 metres. A surge does the most damage where the sea bed is shallow and landfall coincides with high tide, and the salt water it leaves spoils the land's fertility for years. With the heavy rain, the surge flooded the delta, damaged about 16 lakh homes and breached 20,005 flood embankments.

  • Deaths: 9,887 by IMD's count, with 40 missing and 2,507 injured; other estimates ran as high as 30,000.
  • Where people died: 8,119 of the deaths were in Jagatsinghpur district, and the blocks of Erasama and Kujang were the worst affected.
  • Area affected: In 12 districts, among them Balasore, Bhadrak, Cuttack, Jagatsinghpur, Kendrapara, Khurda and Puri, essential services broke down completely, and 1.29 crore people were affected.
  • Damage: The destruction was put at US$4.44 billion.

Cyclone Evacuation in Odisha: 1999 Compared with Later Storms

The difference between 1999 and later storms lies in preparation. Before the super cyclone, evacuation covered nearly 1.5 lakh people living within 10 km of the coast in five districts, and six districts had 23 permanent cyclone shelters, run by the Indian Red Cross Society, which housed 30,000 evacuees. Later storms met a far larger effort:

  • Phailin, 2013: The Odisha government and the Odisha State Disaster Management Authority (OSDMA) moved close to 10 lakh people to cyclone shelters.
  • Fani, 2019: Over 12 lakh residents were moved to higher ground and to shelters built a few kilometres inland.
  • Dana, 2024: Over 3.62 lakh people from 1,653 villages were evacuated to 5,209 shelters.
Bar chart on a logarithmic scale of deaths from cyclones that made landfall in Odisha: 1999 Super Cyclone 9,887; October 1999 cyclone 198; Phailin 2013, 46; Fani 2019, 81; Yaas 2021, 20; Dana 2024, 6.

Phailin to Arnab: Odisha's Cyclone Preparedness Record, 2013 to 2026

Cyclone Phailin 2013 and Cyclone Fani 2019 in Odisha

Phailin crossed the coast near Gopalpur on 12 October 2013 as an extremely severe cyclonic storm with winds of 215 km/h, close to the 1999 storm in strength. Officials expected around 1.2 crore people to be affected, and the storm prompted India's biggest evacuation in 23 years, from the coasts of Odisha and Andhra Pradesh. The distant storm warning signal was raised at the ports of Paradip and Gopalpur.

Phailin killed 46 people in India, against 9,887 in 1999. The economic loss was still heavy, about ₹26,000 crore (US$4.26 billion), because evacuation saves lives but not houses, crops and power lines. Cyclone planning therefore has to protect property and livelihoods as well as lives.

Six years later, Fani struck Puri on 3 May 2019 as an extremely severe cyclonic storm with winds of 215 km/h. It was a storm of the secondary May peak; May to June and October to November produce the most severe cyclones. The state government and OSDMA deployed about a thousand emergency workers and 43,000 volunteers for the evacuation. Fani killed at least 81 people in eastern India and Bangladesh and caused about US$8.1 billion of damage, mostly in Odisha, which shows that a well-warned storm can still be very costly.

Cyclone Dana 2024 and Odisha's Zero-Casualty Target

Dana, a severe cyclonic storm with winds of 110 km/h, made landfall near Bhitarkanika National Park on 24 October 2024 and weakened as it moved inland over northern Odisha. Before it arrived, the Chief Minister set a target of zero casualties for the state, and schools were closed in 14 districts of Odisha from 23 to 25 October. The target was nearly met, and the worst harm was to farms: About 1.8 lakh hectares of standing crops were ruined.

  • Evacuation: Over 3.62 lakh people were moved in Odisha and over 3 lakh in West Bengal.
  • Response forces: 25 National Disaster Response Force (NDRF) teams, 11 in Odisha and 14 in West Bengal.
  • Outcome: One person died in Odisha, a woman who suffered a suspected cardiac arrest in a storm shelter in Kendrapara district; six died in all, four in West Bengal and one in Bangladesh.
  • Damage in Odisha: About ₹616 crore in all, of which about ₹83 crore was to crops.

Titli, Hudhud, Yaas and Other Cyclones That Struck Odisha

Several other storms hit Odisha hard, because a cyclone's rain and wind spread far beyond its landfall point. Most of them made landfall in a neighbouring state; Yaas crossed the Odisha coast but did its worst damage in West Bengal.

  • Titli, 2018: It made landfall near Palasa in Andhra Pradesh, yet 77 of its 85 deaths in India were in Odisha. In Gajapati district a single landslide killed 12 people who had taken refuge in a cave.
  • Hudhud, 2014: It crossed the coast at Visakhapatnam; across Andhra Pradesh and Odisha 7.3 lakh people were moved to relief camps or shelters.
  • Yaas, 2021: It crossed the northern Odisha coast about 20 km south of Balasore as a very severe cyclonic storm; West Bengal was the hardest-hit state, with losses of about ₹21,000 crore.
  • Bulbul, Gulab and Jawad: Bulbul's outer bands damaged crops and power lines in Odisha in 2019, Gulab's rainbands reached south Odisha in 2021, and Jawad weakened at sea later that year after IMD forecast that Odisha would bear the most impact.

Cyclone Arnab 2026: Andhra Landfall and Floods in Ganjam and Gajapati

Cyclone Arnab is the latest storm to strike Odisha from across the border. A very severe cyclonic storm and the first named storm of the 2026 North Indian Ocean season, it crossed the Andhra Pradesh coast near Yanam on 28 October 2026, but south Odisha took the heaviest rain the next day. In the 24 hours to 8.30 a.m. on 29 October, Patrapur in Ganjam district recorded 546 mm and Sorada 503 mm.

  • Before landfall: Odisha readied 135 permanent cyclone shelters and 1,600 temporary ones and deployed eight NDRF teams and 40 Odisha Disaster Rapid Action Force teams.
  • Floods: More than 200 villages in 22 blocks of Ganjam and Gajapati were badly hit, about 2,000 people were marooned in Ganjam, and a stretch of National Highway 326 was washed away.
  • Across the border: Water released from the Baghalati dam on the Bahuda flooded Ichchapuram in Andhra Pradesh.

Major Cyclones in India Beyond Odisha, 1999 to 2024

Cyclone Amphan 2020: The Super Cyclone of the Ganges Delta

Amphan formed over exceptionally warm water, with sea surface temperatures of 32 to 34 °C. On 17 May 2020 it underwent rapid intensification, becoming an extremely severe cyclonic storm within 12 hours, and it peaked as a super cyclonic storm at 240 km/h. It weakened before landfall near Bakkhali in West Bengal on 20 May but remained the strongest cyclone to strike the Ganges Delta.

Amphan killed 133 people and caused over US$15 billion of damage, which makes it the costliest cyclone to strike India. It was also the costliest recorded in the North Indian Ocean until Cyclone Senyar of 2025, which formed over the Strait of Malacca and brought floods and landslides to the Malay Peninsula and Sumatra in November 2025. Amphan struck during the COVID‑19 pandemic, and distancing rules cut West Bengal's shelter capacity from 5 lakh people to 2 lakh. Odisha opened at least 1,704 shelters. The West Bengal government put its losses at ₹1.02 lakh crore and said the storm directly affected 70 per cent of the state's population.

Arabian Sea Cyclones: Tauktae 2021, Biparjoy 2023 and Nisarga 2020

Tauktae formed over Arabian Sea water of up to 30 °C, moved north parallel to the coasts of Kerala, Karnataka, Goa and Maharashtra, and intensified rapidly into an extremely severe cyclonic storm of 185 km/h. It made landfall near Una in Gujarat in May 2021, the strongest cyclone to strike Gujarat since the 1998 Gujarat cyclone. At sea, Barge P305 sank near the Heera oil field off Mumbai: 66 people died, others were missing, and the Indian Navy rescued 186 of the 270 on board. Tauktae killed at least 174 people.

  • Biparjoy, 2023: It was an extremely severe cyclonic storm with peak winds of 165 km/h, and it set the record for accumulated cyclone energy in the North Indian Ocean. It weakened before landfall near Naliya in Gujarat on 16 June; more than 1.5 lakh people were evacuated and 12 died in India.
  • Nisarga, 2020: It made landfall near Alibag, about 95 km south of Mumbai, on 3 June 2020, the strongest storm to strike Maharashtra in June since 1891.

Cyclones of Tamil Nadu and Andhra Pradesh: Vardah to Michaung

October and November are the rainiest months of the eastern Peninsula, when cyclonic depressions from the Andaman Sea cross the coast, and the thickly populated deltas of the Godavari, Krishna and Kaveri are their preferred targets.

  • Vardah, 2016: It weakened from a very severe cyclonic storm with peak winds of 130 km/h before making landfall close to Chennai on 12 December, and it killed 24 people in Tamil Nadu.
  • Ockhi, 2017: It passed near Kanyakumari and on towards Lakshadweep with winds of 155 km/h, killing 218 people in India, many of them fishermen at sea.
  • Gaja, 2018: It crossed the Tamil Nadu coast through Vedaranyam late on 15 November with winds of 130 km/h; 52 deaths were reported in Tamil Nadu.
  • Michaung, 2023: It made landfall near Bapatla in Andhra Pradesh on 5 December with winds of 100 km/h, after its rain flooded Chennai; at least 17 people died.
Map of India marking Tauktae 2021 at Una and Biparjoy 2023 near Naliya in Gujarat, Ockhi 2017 passing near Kanyakumari, Gaja 2018 at Vedaranyam, Fengal 2024 near Puducherry, Vardah 2016 close to Chennai, Michaung 2023 near Bapatla, Nisarga 2020 near Alibag in Maharashtra, and the Odisha coast with six landfalls between 1999 and 2024.

List of Cyclones in India in 2024: Remal, Asna, Dana and Fengal

The 2024 North Indian Ocean season was an average one, with four cyclonic storms, of which two were severe and none reached the very severe grade. All four cyclones of 2024 affected India:

  • Remal, May: It made landfall over Bangladesh, and its rain caused landslides and a quarry collapse in Mizoram, where 34 people died.
  • Asna, August: It formed as a deep depression over land and moved into the Arabian Sea; the floods it brought killed 49 people in Gujarat.
  • Dana, October: It crossed the Odisha coast near Bhitarkanika as a severe cyclonic storm.
  • Fengal, November: It made landfall near Puducherry and killed 20 people in India, including 10 in Tiruvannamalai district of Tamil Nadu.

How Cyclones Are Classified and Named in India

IMD Cyclone Classification by Wind Speed

IMD grades every cyclonic disturbance in the Bay of Bengal and the Arabian Sea by its maximum sustained surface wind. A system becomes a cyclonic storm, and gets a name, at 34 knots (62 km/h). The top grade, the super cyclonic storm, starts at 120 knots (222 km/h), which the 1999 Odisha storm and Amphan reached.

Table 2. IMD classification of cyclonic disturbances over the North Indian Ocean
Category Wind speed in knots Wind speed in km/h
Depression 17 to 27 31 to 49
Deep depression 28 to 33 50 to 61
Cyclonic storm 34 to 47 62 to 88
Severe cyclonic storm 48 to 63 89 to 117
Very severe cyclonic storm 64 to 89 118 to 166
Extremely severe cyclonic storm 90 to 119 167 to 221
Super cyclonic storm 120 and above 222 and above

The extremely severe grade was added to the scale in 2015. Damage rises much faster than wind speed, roughly in proportion to the cube of the wind speed.

How Cyclones Are Named: The North Indian Ocean Name List

Names help the public and the media follow a storm and make warnings reach people faster. The WMO/ESCAP Panel on Tropical Cyclones agreed in 2000, at Muscat, to name cyclones in the Bay of Bengal and the Arabian Sea, and naming began in September 2004 with Cyclone Onil. The Regional Specialised Meteorological Centre (RSMC) in New Delhi, run by IMD, gives the name when a storm reaches 34 knots.

  • Who proposes names: The first list had 64 names from eight countries. When five more countries joined, a new list was drawn up with 13 names from each of 13 members: Bangladesh, India, Iran, Maldives, Myanmar, Oman, Pakistan, Qatar, Saudi Arabia, Sri Lanka, Thailand, the United Arab Emirates and Yemen.
  • What a name must be: Neutral to politics, religion, culture and gender, short and easy to pronounce, and no more than eight letters.
  • How names are used: In order, column by column down the list, and never repeated; unlike the Atlantic lists, the North Indian Ocean list is not rotated.
  • Storms from the east: A cyclone that crosses from the South China Sea into the Bay of Bengal keeps its original name.

Cyclone Warnings, Disaster Management and Warming Seas in India

IMD Four-Stage Cyclone Warnings and Colour Codes

IMD issues cyclone warnings to state government officials in four stages, each more precise than the last. Since the post-monsoon season of 2006, at the request of the National Disaster Management Authority (NDMA), the later stages carry colour codes so that officials and the public can read the danger at a glance:

  1. Pre-cyclone watch, 72 hours ahead: An early warning that a disturbance may become a cyclone, issued by the Director General of Meteorology and addressed to the Cabinet Secretary and the chief secretaries of the coastal states.
  2. Cyclone alert, at least 48 hours ahead (yellow): The storm's position, intensity and likely direction, the coastal districts at risk and advice to fishermen.
  3. Cyclone warning, at least 24 hours ahead (orange): The landfall point is forecast, with updates every three hours on wind, rain and storm surge.
  4. Post-landfall outlook, at least 12 hours ahead (red): The likely track and weather inland after landfall.
Timeline of IMD's four cyclone warning stages: Pre-Cyclone Watch 72 hours before, Cyclone Alert 48 hours before (yellow), Cyclone Warning 24 hours before with the landfall point forecast (orange), and Post-Landfall Outlook 12 hours before landfall (red).

Warnings reach people through state officials, All India Radio and Doordarshan, and ports hoist storm warning signals. Fishermen get special warnings four times a day in normal weather and every three hours when a storm is active. Fani in 2019 showed the stages at work: The alert came 66 hours before landfall and the warning 36 hours before it.

NDMA, NDRF and the Disaster Management Act, 2005

The Disaster Management Act, 2005 (Act No. 53 of 2005) received the President's assent on 23 December 2005 and, as enacted, had 11 chapters and 79 sections. It is administered by the Ministry of Home Affairs, and its main national and State bodies are these:

  • National Disaster Management Authority (NDMA): Chaired by the Prime Minister, with up to nine members; it lays down policies and guidelines and approves the National Plan, reviewing it every three years and updating it at least every five. It began by executive order on 30 May 2005 and was constituted under the Act on 27 September 2006.
  • National Executive Committee: Secretaries of the Union ministries under the Home Secretary, who coordinate disaster management and monitor how the National Plan is carried out.
  • State Disaster Management Authorities: Chaired by the Chief Minister; each approves its State's disaster management plan.
  • National Disaster Response Force (NDRF): Set up in 2006, it has 16 battalions drawn from the central armed police forces, stationed at 12 locations so that teams can be pre-positioned before a storm.

The Disaster Management (Amendment) Act, 2025, in force since 9 April 2025, reshaped this structure. It moved the preparation of the national and State plans to NDMA and the State Authorities. It gave a legal footing to the National Crisis Management Committee under the Cabinet Secretary and to the High Level Committee that approves central assistance. It also allows States to set up Urban Disaster Management Authorities for their capitals and for every city with a municipal corporation, except in Delhi and Chandigarh, and to raise their own State Disaster Response Forces. NDMA is to build a national disaster database.

NDMA's stated vision is a holistic, pro-active and technology-driven strategy that fosters a culture of prevention, preparedness and mitigation. Internationally, India follows the Sendai Framework for Disaster Risk Reduction (2015 to 2030), whose seven targets include lower disaster mortality and wider access to multi-hazard early warning systems by 2030.

Sea Surface Temperature Rise and Rapid Intensification

The temperature of the ocean's top layer, the sea surface temperature, decides how much heat and moisture a cyclone can draw. A cyclone draws its energy from condensation in the towering clouds around its centre, and it keeps strengthening while the sea supplies moisture; over land that supply is cut off and the storm dies. That is why warm water heads the list of conditions for a cyclone.

  • More energy: Warmer water gives more evaporation and more latent heat, so storms can reach higher intensity.
  • Sudden strengthening: Storms can strengthen suddenly, leaving less time to warn and evacuate. Amphan, over water of 32 to 34 °C, went from a severe to an extremely severe storm within 12 hours; Tauktae and Biparjoy also intensified rapidly.
  • New regions at risk: As the Arabian Sea warms, west coast states such as Gujarat face stronger storms, as Tauktae showed in 2021.

Previous Year UPSC‑CSE Questions

Each Prelims question is explained option by option, and each Mains question comes with an answer outline.

  1. UPSC Prelims 2015In the South Atlantic and South-Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the reason?
    1. a Sea surface temperatures are low
    2. b Inter-Tropical Convergence Zone seldom occurs
    3. c Coriolis force is too weak
    4. d Absence of land in those regions
    How to approach this Prelims question

    Question type: Single correct answer

    Approach: The question turns on which condition for cyclone formation these seas lack, so each option is tested against the conditions a cyclone needs.

    Trap to watch: The Coriolis force is present in these latitudes; what is missing is the ITCZ trough, which seldom moves far enough from the equator for a cyclone to begin in it.

    Why each option is right or wrong:

    • (a) Sea surface temperatures are low: Wrong. Cooler water does limit storms in parts of these seas, but it is not the deciding reason: Even where the water is warm enough, the ITCZ trough in which cyclones begin seldom forms there.
    • (b) Inter-Tropical Convergence Zone seldom occurs: Correct. The ITCZ drops only one to two degrees south of the equator in the South Atlantic, so the low-pressure trough in which cyclones begin seldom forms there.
    • (c) Coriolis force is too weak: Wrong. Coriolis force is weak only near the equator; these tropical latitudes are far enough from it.
    • (d) Absence of land in those regions: Wrong. Cyclones form over the sea, so land is not what they need.

    Answer: (b) Inter-Tropical Convergence Zone seldom occurs. The ITCZ stays within one to two degrees of the equator in these seas, so the trough in which cyclones begin seldom forms.

  2. UPSC Mains 2024 GS‑IWhat is sea surface temperature rise? How does it affect the formation of tropical cyclones?
    Answer outline

    The outline sets out what the question asks, the main arguments, relevant examples and the direction of the conclusion; it is not a full model answer.

    Directive verb: None (the question asks 'what' and 'how')

    Approach: Define sea surface temperature, then link its rise to energy, rapid intensification and new regions at risk.

    Introduction: Sea surface temperature is the temperature of the ocean's top layer, and cyclones need water warmer than 27 °C.

    Body (sub-themes to develop):

    • Energy: Warmer water means more evaporation and latent heat released in the storm's clouds.
    • Rapid intensification: Amphan became extremely severe within 12 hours over water of 32 to 34 °C.
    • Arabian Sea: Its cooler water limited cyclones; Tauktae formed over water of up to 30 °C.
    • Consequence: Less warning time and stronger storms at landfall.

    Conclusion: Warming seas make forecasting and preparedness more urgent on both coasts.

  3. UPSC Mains 2022 GS‑IDiscuss the meaning of colour-coded weather warnings for cyclone prone areas given by India Meteorological Department.
    Answer outline

    Directive verb: Discuss

    Approach: Explain what each colour means for officials and the public, then show why graded warnings save lives.

    Introduction: IMD warns of cyclones in four stages, with colour codes used since the post-monsoon season of 2006 at NDMA's request.

    Body (sub-themes to develop):

    • Pre-cyclone watch 72 hours ahead: From the Director General of Meteorology to the Cabinet Secretary and the coastal chief secretaries.
    • Yellow cyclone alert at least 48 hours ahead: Position, intensity, districts at risk, advice to fishermen.
    • Orange cyclone warning at least 24 hours ahead: Landfall point, three-hourly updates on wind, rain and surge.
    • Red post-landfall outlook at least 12 hours ahead: The track and weather inland.
    • Fani, 2019: Alert 66 hours and warning 36 hours before landfall, with 12 lakh evacuated.

    Conclusion: Colour codes turn a technical forecast into a clear signal to act, which helped cut deaths from 9,887 in 1999 to six in Dana.

  4. UPSC Mains 2020 GS‑IIIDiscuss the recent measures initiated in disaster management by the Government of India departing from the earlier reactive approach.
    Answer outline

    Directive verb: Discuss

    Approach: Contrast the reactive relief approach with the proactive one, then give the measures with cyclone evidence.

    Introduction: In 1999 about 1.5 lakh people were evacuated and 9,887 died; in 2024 Dana killed six.

    Body (sub-themes to develop):

    • Law and institutions: The Disaster Management Act, 2005, NDMA under the Prime Minister, the SDMAs and the National Executive Committee.
    • Response capacity: NDRF with 16 battalions at 12 locations, pre-positioned before storms.
    • Early warning: IMD four-stage colour-coded warnings, port signals and fishermen's bulletins.
    • Preparedness on the ground: Shelters and mass evacuation, Phailin, Fani and Dana's zero-casualty target.
    • International frame: The Sendai Framework's targets on mortality and early warning.

    Conclusion: Deaths have fallen sharply but damage has not, so the next step is resilient housing, power and livelihoods.

Sources

Editorial Disclaimer

This article is prepared for UPSC and State PCS aspirants and covers the major cyclones of Odisha and India's other coasts, from the Odisha Super Cyclone to Cyclone Arnab. It draws on the NCERT Class XI geography textbooks, IMD's RSMC New Delhi documents, NDMA, NIDM, PIB, India Code and The Hindu, with Wikipedia's storm articles for storm-by-storm figures. Live cyclone bulletins are issued on the IMD RSMC New Delhi portal.

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