Yesterday saw isolated places along the Western Ghats in Tamil Nadu record some thunderstorms along with parts of Kerala as well. Conditions get better today for more thunderstorm activity in the interior areas of Tamil Nadu with lower level Westerlies pushing further into the state bringing more areas under ideal conditions for late evening thunderstorms.
While Western Tamil Nadu areas are best placed for thunderstorms today, South Tamil Nadu areas along the ghats and one or two places in North Interior Tamil Nadu with some luck could sneak in a spell or two of rains. Isolated places in Coimbatore / Tiruppur district could see moderate to heavy thunderstorms bringing in sudden intense spell of rains.
There is some possibility of rains spilling over into South Interior Karnataka especially the districts that are bordering the Coimbatore / Erode belt like Chamrajnagar along with may be some isolated light rains over districts like Mysore, Bengaluru, Ramanagara etc. Chennai as usual will in all probability remain a spectator to these rains today as well with not much chance for the city.