Ponneri - Periyapalayam - Thiruvottiyur belt was battered a while back and the storms dipped till Thiruvottiyur in Chennai City.
While moving out these storms are triggering new storms. Watchout for sudden burst of rains in City at various places.Further, the other bunch of storms Tiruvallur Arani-Ponneri belt is trying to converge as it moves down.
Now only isolated bursts of rains which will last few mins. Later in Night the storms may converge. Wait for next update.
Enjoy. Its already started to rain in Mandaveli
Courtesy - Tamil Nadu Weatherman