There are isolated storms Near Nagari will move to Pulicat, so no chance for to get rains from that. But thats not the storms alone to track there. The storms forming itself shows conditions are good. More storms are forming near the Vellore - Gadankki belt and will most likely to move towards us. So lets wait watch. Just watch the sea breeze front moving in, it will trigger more storms. There is good chance of rains today in Chennai.
Courtesy - Tamil Nadu Weatherman