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Regional Meteorological Centre, Chennai is one of the six regional meteorological centres (RMCs) of the India Meteorological Department (IMD) and is responsible for the weather-related activities of the southern Indian peninsula comprising the states of Andhra Pradesh, Telangana, Karnataka, Kerala, Tamil Nadu and the union territories of Andaman and Nicobar, Lakshadweep Islands and Puducherry.
S R Ramanan is an Indian meteorologist.He worked as the Director of Cyclone warning centre in Chennai, Indian state of Tamil Nadu. [1] [2] [3] He serves on the advisory committee of the centre for climate change and adoption research, Anna University, Chennai. [4]
The Climate of Tamil Nadu, India is generally tropical and features fairly hot temperatures over the year except during the monsoon seasons. The city of Chennai lies on the thermal equator , [ 1 ] which means Chennai and Tamil Nadu does not have that much temperature variation.
Tamil Nadu is the only state in India that has both the Western Ghat and the Eastern Ghat mountain ranges which both meet at the Nilgiri Hills. [1] The Western Ghats dominate the entire western border with Kerala, effectively blocking much of the rain-bearing clouds of the South West Monsoon from entering the state.
The storm brought heavy rainfall over the coastal districts of Tamil Nadu. Neyveli, a mining township southwest of Puducherry, recorded 139 mm (5.5 in) of rainfall on November 9 and 483 mm (19.0 in) of rainfall on November 10 [63] of which 450 mm (18 in) fell within a span of 9 hours. [64]
[70] [71] Some places have recorded extreme rainfall, notably Orathanad, Thanjavur district where over 660 mm of rain fell within a period of 24 hours and broke the 65-year-old record of highest rainfall registered in 24 hours in Tamil Nadu. Previously the highest amount of rainfall in a day was 570 mm registered by Cuddalore on May 18, 1943. [72]
Though rainfall from the earlier low-pressure system ended on 24 November, another system developed on 29 November, bringing additional rain and the India Meteorological Department predicted heavy rainfall over Tamil Nadu until the end of the week. [31] [32] On 1 December, heavy rains led to inundation in many areas of Chennai. [33]
The final landfalling storm of the season, Fanoos brought heavy rainfall to Tamil Nadu, with a daily peak of 350 mm (14 in) in Ramanathapuram. [1] The rains heavily damaged crops across Tamil Nadu, [18] although damage was less than expected. [22] It was the fifth storm to affect southern India in six weeks. [23]