Date 8 -November 2015 – ongoing
Location -South India (Tamil Nadu, Puducherry, Andhra Pradesh)
Deaths -Tamil Nadu: 300Andhra Pradesh: 81
Puducherry: 2
Property damage -Over ₹20000 crore
Tamil Nadu: ₹8481 crore
Andhra Pradesh: ₹3819 crore
Puducherry: ₹333 crore
The 2015 South Indian floods resulted from heavy rainfall during the annual northeast monsoon in November–December 2015. They affected the Coromandel Coast region of the South Indian states of Tamil Nadu and Andhra Pradesh, and the union territory of Puducherry, with Tamil Nadu and the city of Chennai particularly hard-hit.[7] More than 300 people have died[1][2] and over 1.8 million people have been displaced.[8] Damages and losses are estimated to be more than ₹20000 crore (US$3 billion).[4][9][10][11] This flooding is attributed to the El Niño phenomenon during the El Niño year of 2015.[12]
Background:
On 8 November 2015, during the annual cyclone season, a low pressure area consolidated into a depression and slowly intensified into a deep depression before crossing the coast of Tamil Nadu near Puducherry the following day. Because of land interaction and high vertical wind shear, the system weakened into a well-marked low pressure area over north Tamil Nadu on 10 November.[13] The system brought very heavy rainfall over the coastal and the north interior districts of Tamil Nadu. On 15 November, a well-marked low pressure area moved northwards along the Tamil Nadu coast, dropping huge amounts of rainfall over coastal Tamil Nadu and Andhra Pradesh with 24 hour totals peaking at 370 mm in Ponneri. Chennai International Airport recorded 266 mm of rainfall in 24 hours. On 28–29 November, another system developed and arrived over Tamil Nadu on 30 November, bringing additional rain and flooding. The system dropped 490 mm of rainfall at Tambaram in 24 hours from 8:30 am of 1 December. Very heavy rains led to flooding across the entire stretch from Chennai to Cuddalore.
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