It's again going to be a roar of rains for Chennai and several parts of Tamil Nadu as after recording historical and intense rainfall for the past few days, the state is getting ready to brace up for another round of very heavy downpours from November 10 and the trend would remain nearly for four days. 

India's premier weather watchdog, the India Meteorological Department (IMD) has predicted heavy to very heavy rainfall in isolated places across Tamil Nadu, including Chennai, from Thursday - November 10. In the latest press release, the IMD said that fairly widespread, widespread light or moderate rainfall with isolated heavy downpours and thunderstorms are expected over Tamil Nadu, Puducherry, and Karaikal during November 10-12. 

It has been predicted that heavy rain will occur at isolated places of Chennai, Kancheepuram, Chengalpattu, Tiruvallur, Kallakurichi, Cuddalore, Villupuram, Ramanathapuram, Pudukkottai, Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, Ariyalur, Perambalur, Sivagangai, Puducherry, and Karaikal on Thursday. This trend will change to heavy to very heavy rains on November 11 and 12. 

In the wake of the predictions, several districts were pronounced with orange alerts and the rainfall will continue on November 13 and it will lose its intensity by November 14. The IMD said that a cyclonic circulation lies over the southwest Bay of Bengal and adjoining the equatorial Indian Ocean and extends up to 4.5 km above main sea level. The cyclonic circulation will lead to the formation of a low-pressure area in the region and it will move towards Tamil Nadu - Puducherry coasts between November 9 and 11. 

In its press release, the IMD further said that squally winds with speeds reaching 45-55 kmph and increasing to 65 kmph are very likely to prevail over southwest Bay of Bengal and Sri Lanka coasts on November 10, over southwest Bay of Bengal, Gulf of Mannar, off Tamil Nadu- south Andhra Pradesh on November 11 and 12."