2020 Hyderabad floods
Deep Depression BOB 02 at its peak intensity
Meteorological history
FormedOctober 11, 2020
DissipatedOctober 14, 2020
Deep depression
3-minute sustained (IMD)
Highest winds55 km/h (35 mph)
Lowest pressure999 hPa (mbar); 29.50 inHg
Overall effects
Fatalities98 total
Damage$681 million (2020 USD)
Areas affectedIndia (Andhra Pradesh, Telangana, Puducherry, Karnataka, Kerala, Goa, Maharashtra)
Part of the 2020 North Indian Ocean cyclone season

The 2020 Hyderabad floods were a series of floods associated with Deep Depression BOB 02 that caused extensive damage and loss of life as a result of flash flooding in Hyderabad, India in October 2020. Among the most affected areas were Balapur, L. B. Nagar,[1][2] parts of Old City such as Hafiz Baba Nagar, Al Jubail Colony,[3] Omer colony, Osman Nagar, Nabeel Colony, Falaknuma,[4][5] Chaderghat etc.[6][7][8] The fourth tropical cyclone and third deep depression of the 2020 North Indian Ocean cyclone season, BOB 02 formed on 11 October over the west-central Bay of Bengal and slowly drifted towards the east coast of India over the following three days.

Weather systems

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On 11 October, an area of low pressure concentrated into a depression over the west-central Bay of Bengal.[9] It further intensified into a deep depression on 12 October as it moved slowly west-northwestwards.[10][11] After that, BOB 02 made landfall in Andhra Pradesh near Kakinada in the early hours of 13 October and weakened again into a depression.[12][13] The system weakened into a well-marked low-pressure area over south-central Maharashtra on the evening of 14 October.[14] Though the system's low-level circulation was partially exposed due to high vertical wind shear and continuous land interaction, the JTWC re-issued a tropical cyclone advisory on 15 October. The IMD also forecasted BOB 02 to reintensify in the Arabian Sea.[15][16] The low-pressure area intensified into Depression ARB 03 in the early hours of 17 October.[17] The system delayed the withdrawal of southwest monsoon season by almost a week.[18]

Impact

Street flooding submerging cars in Hyderabad

The floodgates of the Himayat Sagar were lifted as the water reached full reservoir levels, and the Musi river flowed full stream, flooding several localities and flowing over two causeway bridges.[19] Due to BOB 02, Puducherry, Andhra Pradesh, Telangana, Kerala, Maharashtra, and coastal Karnataka experienced heavy rain on 12 and 13 October with the capital city, with Hyderabad experiencing 32 cm of record breaking torrential rain creating flash floods on the city by 13 October.[20] 2 people died in Vijayawada, and 50 people died on different parts of Telangana, including 19 in Hyderabad.[21] Additionally, twenty seven people died in Maharashtra.[22][23] Extreme crop loss in north Karnataka, Andhra Pradesh and Telangana occurred due to the system.[24] The Chief Minister of Telangana estimated ₹5,000 crore (US$681 million) worth of damage.[21] On 18 October, a second cyclone killed two more people in Hyderabad. Over 37,000 families were affected by the second flood. Rainfall reached over 110 millimetres (4.3 in) in parts of Hyderabad, with heavier rainfall amounts outside of the city.[25] With over 80 people having lost their lives and about 40,000 families being displaced, post rain gathering up-to 20,000 tons of waste.[26][27]

Aftermath

Map of Old City, Hyderabad

360 National Disaster Response Force personnel, as well as Indian Army forces were deployed.[19][28] The Telangana government requested the Central government to provide relief to Hyderabad and surrounding areas. Chief Minister K. Chandrashekhar Rao wrote a letter to Prime Minister Narendra Modi seeking immediate release of ₹1,350 crore, in which ₹600 crore for farmers and ₹750 crore on relief and rehabilitation works in the Greater Hyderabad Municipal Corporation area.[29] On 14 October, the Telangana Government declared a two-day holiday for all nonessential workers due to flooding, and urged everyone to stay home.[30] Amid the possibility of further flooding, more than 2,100 families were evacuated near Gurram Cheruvu. More than 150,000 meal packets were distributed to flood-affected areas. Furthermore, 60 teams were tasked with spreading bleach in cellars and open areas to prevent the spread of waterborne and vector-borne diseases.[25]

See also

References

  1. ↑ "Hyderabad: Taxis damaged in floods, owners hope govt will rescue".
  2. ↑ "GHMC to resolve LB Nagar flooding issue with RCC stormwater drains". The Times of India.
  3. ↑ "Multiple infra works in Hyderabad's Old City in deep freeze".
  4. ↑ "NRSC map of low-lying areas of Hyderabad".
  5. ↑ "Multiple infra works in Hyderabad's Old City in deep freeze".
  6. ↑ "Deluge of August 2000 was the warning Hyderabad chose to ignore".
  7. ↑ "2020 rerun: Hyderabad wakes up to deluge, many streets sink". The Times of India.
  8. ↑ "80% of Old Hyderabad households lost property, jobs due to Covid-19 & floods, finds survey". The Times of India.
  9. ↑ "Special Tropical Weather Outlook". RSMC New Delhi. 11 October 2020. Archived from the original on 18 October 2020. Retrieved 18 October 2020.
  10. ↑ "Special Tropical Weather Outlook". RSMC New Delhi. 12 October 2020. Archived from the original on 18 October 2020. Retrieved 18 October 2020.
  11. ↑ "Significant Tropical Cyclone Advisory on 91 B". Archived from the original on 26 September 2020. Retrieved 18 October 2020.
  12. ↑ "Special Tropical Weather Outlook". RSMC New Delhi. 13 October 2020. Archived from the original on 18 October 2020. Retrieved 18 October 2020.
  13. ↑ "GMDSS Bulletin for Met. Area VIII (N), North of Equator". India Meteorological Department. 13 October 2020. Archived from the original on 18 October 2020. Retrieved 18 October 2020.
  14. ↑ "National Bulletin IMD". mausam.imd.gov.in. Archived from the original on 25 July 2020. Retrieved 14 October 2020.
  15. ↑ "Bulletin NO.:20 (BOB/02/2020)" (PDF). Archived (PDF) from the original on 8 October 2014. Retrieved 18 October 2020.
  16. ↑ "Significant Tropical Cyclone Advisory on 92A". Archived from the original on 26 April 2019. Retrieved 18 October 2020.
  17. ↑ "Bulletin No.: 01 (ARB/03/2020)" (PDF). Archived from the original on 21 October 2020. Retrieved 18 October 2020.
  18. ↑ Borwankar, Vinamrata (17 October 2020). "Monsoon withdrawal further delayed by week in Mumbai". The Times of India. Archived from the original on 21 October 2020. Retrieved 17 October 2020.
  19. 1 2 Vadlamudi, Swathi (15 October 2020). "Rain fury leaves capital battered, bruised". The Hindu. ISSN 0971-751X. Archived from the original on 15 October 2020. Retrieved 15 October 2020.
  20. ↑ "Flood toll 32 and counting in Telangana". The New Indian Express. Archived from the original on 21 October 2020. Retrieved 20 October 2020.
  21. 1 2 "Floods in Telangana claim 50 lives; state suffers Rs 5,000 crore damages". Deccan Herald. 15 October 2020. Archived from the original on 21 October 2020. Retrieved 20 October 2020.
  22. ↑ "Death toll rises to 50 in Telengana,1305 crore plea to CM". Ei Samay.
  23. ↑ "In Maharashtra, 27 dead in rain-related incidents; Uddhav Thackeray puts state machinery on high alert". Firstpost. 15 October 2020. Archived from the original on 21 October 2020. Retrieved 20 October 2020.
  24. ↑ "Rains Wreak Havoc In Andhra Pradesh, Karnataka, Telangana". BloombergQuint. Archived from the original on 21 October 2020. Retrieved 20 October 2020.
  25. 1 2 "With parts of Hyderabad still flooded, more rain forecast". Indian Express. 18 October 2020. Archived from the original on 21 October 2020. Retrieved 20 October 2020.
  26. ↑ "Hyderabad floods: What caused deluge in 2000 and GSI's suggestions for future prevention". Financial Express. 23 October 2020. Archived from the original on 29 November 2020. Retrieved 22 December 2020.
  27. ↑ "Post deluge, Hyderabad stares at 20,000 tonne of waste". Indian Express. 23 October 2020. Archived from the original on 29 November 2020. Retrieved 22 December 2020.
  28. ↑ Desk, DC Web (15 October 2020). "Hyderabad deluge: 19 killed as heaviest October rain in a century maroons city". Deccan Chronicle. Archived from the original on 15 October 2020. Retrieved 15 October 2020.
  29. ↑ Rajeev, M. (16 October 2020). "Hyderabad Floods Telangana Seeks Immediate Aid of ₹1,350 Crore". The Hindu. Archived from the original on 21 October 2020. Retrieved 17 October 2020.
  30. ↑ "Heavy rains destroy homes and lives in southern India". BBC News. Archived from the original on 21 October 2020. Retrieved 20 October 2020.
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