Southern Tamil Nadu and neighbouring Kerala are on high alert as the cyclone Burevi which weakened into a deep depression inches closer to the southern shores.

The deep depression is likely to cross Ramanathapuram and adjoining Tuticorin district in six hours with windspeed of 50-60 kmph, according to the weather office.

The associated wind speed of the depression that lay stationed at about 40 km southwest of Ramanathapuram, 70 km west-southwest of Pamban was around 55-65 gusting to 75 kmph.

This is further likely to weaken into a depression, with wind speeds coming down to about 45-55 kmph, gusting to 65 kmph during the next 12 hours. As per the latest bulletin issued by Regional Meteorological Centre (RMC), the deep depression is likely to move slowly west-southwestwards and cross Ramanathapuram and adjoining Thoothukudi district during next six hours. Wind speeds during crossing are expected to be around 50-60 gusting to 70 kmph.

IMD has forecast heavy to very heavy rainfall at isolated places very likely over north Tamil Nadu, Puducherry and Karaikal during next 24 hours. Heavy rainfall at isolated places is very likely over South Coastal Andhra Pradesh and Lakshadweep as well on December 4, 2020.

Severe thunderstorms with heavy rain are likely to occur over Chennai, Tiruvallur, Chengalpattu, Kanchipuram, Cuddalore, Villupuram, Tiruvannamalai, Nagapattinam  districts of Tamil Nadu.

Meanwhile, the flight operations will remain suspended at Thiruvananthapuram International Airport from 10 am to 6 pm today.

The Thiruvananthapuram International Airport will remain closed on December 4 from 10 Am to 6 PM, district collector Navjot Khosa said.