Deep Depression BOB 02 (2020)
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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 flood A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, or tropical storm, or by meltwater from ice and snow. Flash f ...
ing in
Hyderabad Hyderabad is the capital and largest city of the Indian state of Telangana. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part of Southern India. With an average altitude of , much ...
, India in October 2020. The fourth tropical cyclone and third deep depression of the
2020 North Indian Ocean cyclone season The 2020 North Indian Ocean cyclone season was the costliest North Indian Ocean cyclone season on record, mostly due to the devastating Cyclone Amphan. it was an above average season featuring 5 cyclonic storms. The North Indian Ocean cyclone ...
, BOB 02 formed on 11 October over the west-central
Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean. Geographically it is positioned between the Indian subcontinent and the Mainland Southeast Asia, Indochinese peninsula, located below the Bengal region. Many South Asian and Southe ...
and slowly drifted west-northwest, towards the east coast of India over the following days. The depression made landfall in
Andhra Pradesh Andhra Pradesh (ISO 15919, ISO: , , AP) is a States and union territories of India, state on the East Coast of India, east coast of southern India. It is the List of states and union territories of India by area, seventh-largest state and th ...
early on 13 October, and dissipated on the next day. Despite remained weak while striking south-central India, the system brought torrential rains and triggered flooding in the region.
Hyderabad Hyderabad is the capital and largest city of the Indian state of Telangana. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part of Southern India. With an average altitude of , much ...
, the capital city of
Telangana Telangana is a States and union territories of India, state in India situated in the Southern India, south-central part of the Indian subcontinent on the high Deccan Plateau. It is the List of states and union territories of India by area, ele ...
, experienced record-breaking rainfall and led to flash floods in the city. Over 100 people were killed by the floods, including 72 in Telangana. The state reported a loss of
The Indian rupee sign ⟨₹⟩ is the currency symbol for the Indian rupee (ISO 4217: INR), the official currency of India. Designed by D. Udaya Kumar, it was presented to the public by the Government of India on 15 July 2010, following its ...
9,000 
crore Crore (; abbreviated cr) denotes the quantity ten million (107) and is equal to 100 lakh in the Indian numbering system. In many international contexts, the decimal quantity is formatted as 10,000,000, but when used in the context of the India ...
(US$1.23 billion).


Weather systems

On 11 October, an
area of low pressure In meteorology, a low-pressure area (LPA), low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. It is the opposite of a high-pressure area. Low-pressure areas are commonly associated with inclem ...
concentrated into a depression over the west-central
Bay of Bengal The Bay of Bengal is the northeastern part of the Indian Ocean. Geographically it is positioned between the Indian subcontinent and the Mainland Southeast Asia, Indochinese peninsula, located below the Bengal region. Many South Asian and Southe ...
. It further intensified into a deep depression on 12 October as it moved slowly west-northwestwards. After that, BOB 02 made landfall in
Andhra Pradesh Andhra Pradesh (ISO 15919, ISO: , , AP) is a States and union territories of India, state on the East Coast of India, east coast of southern India. It is the List of states and union territories of India by area, seventh-largest state and th ...
near
Kakinada Kakinada (; formerly known as Cocanada) is a Port, port city and municipal corporation in the Indian state of Andhra Pradesh. Situated along the Bay of Bengal, it serves as the headquarters of Kakinada district and is a prominent economic and c ...
in the early hours of 13 October and weakened again into a depression. The system weakened into a well-marked low-pressure area over south-central
Maharashtra Maharashtra () is a state in the western peninsular region of India occupying a substantial portion of the Deccan Plateau. It is bordered by the Arabian Sea to the west, the Indian states of Karnataka and Goa to the south, Telangana to th ...
on the evening of 14 October. 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. The low-pressure area intensified into Depression ARB 03 in the early hours of 17 October. The system delayed the withdrawal of
southwest monsoon A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with annual latitudinal oscil ...
season by almost a week.


Impact

The floodgates of the
Himayat Sagar Himayat Sagar is an artificial lake about from Hyderabad in the Ranga Reddy district of Telangana, India. It lies parallel to a larger artificial lake called Osman Sagar. The storage capacity of the reservoir is 2.9 tmc ft. History The cons ...
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. Due to BOB 02,
Puducherry Puducherry or Pondicherry may refer to: Places in India * Puducherry (union territory), formerly known as Pondicherry ** Puducherry (city), capital of the union territory of Puducherry ** Puducherry district The Puducherry District, also know ...
,
Andhra Pradesh Andhra Pradesh (ISO 15919, ISO: , , AP) is a States and union territories of India, state on the East Coast of India, east coast of southern India. It is the List of states and union territories of India by area, seventh-largest state and th ...
,
Telangana Telangana is a States and union territories of India, state in India situated in the Southern India, south-central part of the Indian subcontinent on the high Deccan Plateau. It is the List of states and union territories of India by area, ele ...
,
Kerala Kerala ( , ) is a States and union territories of India, state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile ...
,
Maharashtra Maharashtra () is a state in the western peninsular region of India occupying a substantial portion of the Deccan Plateau. It is bordered by the Arabian Sea to the west, the Indian states of Karnataka and Goa to the south, Telangana to th ...
, and coastal Karnataka experienced heavy rain on 12 and 13 October.
Ghatkesar Ghatkesar is a satellite town of Hyderabad in the Medchal-Malkajgiri district of Telangana, India. It is the mandal headquarters of Ghatkesar Mandal in the Keesara revenue division. Located in the outer suburbs of Hyderabad, it is a part of the ...
, a suburb of
Hyderabad Hyderabad is the capital and largest city of the Indian state of Telangana. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part of Southern India. With an average altitude of , much ...
, experiencing of record-breaking torrential rain. Many areas in Hyderabad recorded rainfall of over , creating flash floods on the city by 13 October. Four people died in
Vijayawada Vijayawada ( ), formerly known by its colonial name Bezawada, is the second largest city and a major commercial hub in the Andhra Pradesh state of India. The city forms an integral part of the Andhra Pradesh Capital Region and is situated on th ...
, and 70 people died on different parts of
Telangana Telangana is a States and union territories of India, state in India situated in the Southern India, south-central part of the Indian subcontinent on the high Deccan Plateau. It is the List of states and union territories of India by area, ele ...
, including 33 in
Hyderabad Hyderabad is the capital and largest city of the Indian state of Telangana. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part of Southern India. With an average altitude of , much ...
. Additionally, 28 people died in
Maharashtra Maharashtra () is a state in the western peninsular region of India occupying a substantial portion of the Deccan Plateau. It is bordered by the Arabian Sea to the west, the Indian states of Karnataka and Goa to the south, Telangana to th ...
. Extensive crop loss in north
Karnataka Karnataka ( ) is a States and union territories of India, state in the southwestern region of India. It was Unification of Karnataka, formed as Mysore State on 1 November 1956, with the passage of the States Reorganisation Act, 1956, States Re ...
,
Andhra Pradesh Andhra Pradesh (ISO 15919, ISO: , , AP) is a States and union territories of India, state on the East Coast of India, east coast of southern India. It is the List of states and union territories of India by area, seventh-largest state and th ...
and
Telangana Telangana is a States and union territories of India, state in India situated in the Southern India, south-central part of the Indian subcontinent on the high Deccan Plateau. It is the List of states and union territories of India by area, ele ...
occurred due to the system. Total damage estimated by the government of Telangana was near ₹9,000 crore (US$1.23 billion). On 18 October, a second flood killed two more people in Hyderabad. Over 37,000 families were affected by the second flood. Rainfall reached over in parts of Hyderabad, with heavier rainfall amounts outside of the city. 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.


Aftermath

360
National Disaster Response Force The National Disaster Response Force (NDRF) is a specialized force in India, tasked with the responsibility of responding to natural disasters, natural and man-made disasters. It operates under the National Disaster Management Authority (India) ...
personnel, as well as
Indian Army The Indian Army (IA) (ISO 15919, ISO: ) is the Land warfare, land-based branch and largest component of the Indian Armed Forces. The President of India is the Commander-in-Chief, Supreme Commander of the Indian Army, and its professional head ...
forces were deployed. The
Telangana Telangana is a States and union territories of India, state in India situated in the Southern India, south-central part of the Indian subcontinent on the high Deccan Plateau. It is the List of states and union territories of India by area, ele ...
government requested the Central government to provide relief to
Hyderabad Hyderabad is the capital and largest city of the Indian state of Telangana. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part of Southern India. With an average altitude of , much ...
and surrounding areas.
Chief Minister A chief minister is an elected or appointed head of government of – in most instances – a sub-national entity, for instance an administrative subdivision or federal constituent entity. Examples include a state (and sometimes a union ter ...
K. Chandrashekhar Rao wrote a letter to
Prime Minister A prime minister or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. A prime minister is not the head of state, but r ...
Narendra Modi Narendra Damodardas Modi (born 17 September 1950) is an Indian politician who has served as the Prime Minister of India, prime minister of India since 2014. Modi was the chief minister of Gujarat from 2001 to 2014 and is the Member of Par ...
seeking immediate release of ₹1,350 crore (US$184 million), in which ₹600 crore for farmers and ₹750 crore on relief and rehabilitation works in the
Greater Hyderabad Municipal Corporation The Greater Hyderabad Municipal Corporation (GHMC) is the civic body that oversees Hyderabad, the capital and largest city of the Indian state of Telangana. It is the local government for the city of Hyderabad. It is one of the largest munici ...
area. On 14 October, the Telangana Government declared a two-day holiday for all nonessential workers due to flooding, and urged everyone to stay home. 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 Bleach is the generic name for any chemical product that is used industrially or domestically to remove color from (i.e. to whiten) fabric or fiber (in a process called bleaching) or to disinfect after cleaning. It often refers specifically t ...
in cellars and open areas to prevent the spread of waterborne and
vector-borne disease In epidemiology, a disease vector is any living agent that carries and transmits an infectious pathogen such as a parasite or microbe, to another living organism. Agents regarded as vectors are mostly blood-sucking ( hematophagous) arthropods such ...
s.


See also

*
2020 North Indian Ocean cyclone season The 2020 North Indian Ocean cyclone season was the costliest North Indian Ocean cyclone season on record, mostly due to the devastating Cyclone Amphan. it was an above average season featuring 5 cyclonic storms. The North Indian Ocean cyclone ...
*
Great Musi Flood of 1908 The Great Musi Flood was a devastating flood that occurred on 28 September 1908 in Hyderabad on the banks of the Musi River. The city of Hyderabad was the capital of the Hyderabad State, ruled by the Nizam, Mir Mahbub Ali Khan. The flood, l ...
* 2000 Hyderabad floods * 2019 Patna floods


References

{{DEFAULTSORT:Hyderabad floods, 2020 2020 disasters in India
2020 floods A flood is an overflow of water that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant conce ...
October 2020 in India 2020 North Indian Ocean cyclone season 2020 floods in Asia Floods in India Hyderabad floods