2021 South India floods

[1] The flooding was caused by extremely heavy downpours from BOB 05, killing at least 41 people[2] across India and Sri Lanka.

[5] On the next day, it was upgraded to a well-marked low pressure area after the IMD noted the formation of a defined vortex in association with the system.

[10] However, the system could not further intensify, due to land interaction as well as high wind shear produced by an upper tropospheric ridge.

[16] Although the cyclone didn't move across towards Kerala, it has brought heavy rainfall and delayed the withdrawal of the Northeast monsoon in the northern part of the state.

Residents in north Chennai had to deal with knee-deep flooding, and some had already resorted to swimming pools and other available options to avoid getting wet.

Central Chennai was the hardest hit in the city, as two canals and one river overflowed in the area, causing major flooding.

Flood warnings were in effect in the impacted areas, as residents expressed concern about cows wading through floodwaters throughout the storm.

Reservoirs continued to pour water, and the Tamil Nadu Revenue and Disaster Management Minister announced that 538 huts and four houses had been damaged.

In addition to the metropolis, the IMD has issued a red alert for Viluppuram and Cuddalore, as heavy rain is expected to persist.

The National Disaster Response Force teams also came in the former and Cuddalore to stabilize and aid the area's administrations for probable assistance, while southern Chennai lost power due to heavy rains on that day.

In Tamil Nadu, relief operations were also deployed, and the state government formed a committee to examine the amount of crop damage as a result of the rains.

[22][23] Areas in the state capital, Chennai, were waterlogged and government officials had to use pumps to drain communities who were stranded in waist-deep waters.

Wind warnings were issued for ports around the country, and fishermen were urged not to travel into the impacted area of the Bay of Bengal between 11 and 12 November.