Severe rainfall is expected on November 11 and 12, with an orange alert issued for 15 districts including Chennai, Chengalpet, Tiruvallur and Kancheepuram.
The regional meteorological centre issued a yellow warning to 13 districts and orange warning to nine districts on November 10 and 11.
The northeast monsoon has been vigorous, and the Chennai region received heavy spells.
It is expected to become more marked during subsequent 24 hours and move northwestwards, according to Met office.
The India Meteorological Department (IMD) issued an orange alert for 12 districts and yellow alert for Thiruvananthapuram and Kollam.
The heavy rains led to six deaths -- one each in Thiruvananthapuram, Kottayam and Ernakulam, and three in Kannur district -- resulting in a total of 12 rain-related casualties from July 31 to August 2
Even as widespread rain, the day before, brought down the mercury in the national capital, the ‘moderate to heavy’ rainfall predicted for Thursday gave the city a miss.
Waterlogging in some key stretches chokes traffic in city
Met Department official said a low pressure developed in the region is likely to bring extremely heavy rains in south Gujarat and people are advised not to venture out unnecessarily
Delhiites got some respite from sweltering weather after 12 days, as no heat wave was recorded in any part of the city on Thursday.
IMD issued an Orange alert in the districts of Thrissur, Palakkad, Malappuram, Kozhikode, Wayanad, Kannur and Kasaragod for today. It also issued an Orange alert in Kannur and Kasaragod for Thursday.
A red alert indicates heavy to extremely heavy rains of over 20 cm in 24 hours, while orange alert means very heavy rains from 6 cm to 20 cm of rainfall.
Heat wave to severe heat wave conditions is likely to return to Delhi from May 13 to May 15, with the India Meteorological Department (IMD) issuing a ‘yellow’ alert on Thursday.
With the catchment areas of the dam receiving heavy rainfall over the past several days, the water level in the dam has been increasing considerably.
The rising water level in the Idukki dam (it was 2,394.36 feet on Sunday) has triggered fear among the people in the downstream areas.