The state of Tamil Nadu received last good spell of rain between November 14 and 22. During that time, two back to back weather systems affected the state one was Cyclone Gaja and second one was well-marked low-pressure area.
Since then weather of Tamil Nadu was almost dry and the easterly wave was also weak.
However, during the last 24 hours, easterly wave has become active due to which coastal districts of Tamil Nadu including the capital city Chennai have received light to moderate rains with few heavy spells.
In the last 24 hours from 08:30 am on Monday, Chennai’s Meenambakkam recorded 46 mm of rain, followed by Karaikal 45 mm, Parangepettai 33 mm, Nagapattinam 23 mm and Thondi 22.7 mm.
At present, a cyclonic circulation is persisting over South Interior Karnataka. Moreover, a trough is also seen running along the Tamil Nadu Coast. In wake of all these weather systems, we expect scattered light to moderate rains to continue over many parts of the state.
Even though intensity of rains will start decreasing after 24 hours, but coverage area will increase. Good rains which was confined to costal districts will now spread to entire Tamil Nadu. These on and off rains will continue till tomorrow i.e. December 5.
Thereafter, significant decrease will be observed, and weather will start clearing up. In fact, by December 7, we expect rains to stop and weather to become dry over most places.
Image Credits – India Today
Please Note: Any information picked from here must be attributed to skymetweather.com