<span style="color: #222222;">The Depression headed towards the North Eastern Bay of Bengal has triggered an upper air circulation in Tamil Nadu and Puducherry region.<br />''<br />''India Meteorology Department in Chennai has said in its latest weather bulletin, that coastal Tamil Nadu and her eight north interior districts and Puducherry will experience isolated light to moderate rain for the next 48-hours.<br />''<br />''The sky in Chennai will be cloudy and there will be occasional rain at isolated places.<br />''<br />''Several areas in Chennai and other places in the state experienced thunderstorms today.<br />''<br />''Fishermen have been asked not to venture into the North Western Bay till tomorrow.</span><br />''<br />