A Pre-Cyclone Watch issued for North Tamil Nadu & Puducherry Coasts Depression over Bay of Bengal A depression has formed over southwest Bay of Bengal and this morning (the 8th November, 2015) it lay centred, about 460 km southeast of Chennai, 440 km east-southeast of Puducherry and 480 km east-northeast of Jafna (Sri Lanka). It would move west-northwestwards, intensify into a Deep Depression during next 24 hours and subsequently into a Cyclonic Storm. It is expected to cross Tamil Nadu coast between Karaikal and Chennai close to Puducherry around 9th midnight, tomorrow. A Heavy rainfall warning has been issued as Rainfall at most places with heavy to very heavy rainfall at a few places and isolated extremely heavy falls (25 cm or more) are expected to occur over north coastal Tamil Nadu and Puducherry during next 24 hours and north Tamil Nadu and Puducherry during subsequent 24 hours. Rainfall at many places with isolated heavy falls would occur over south and north interior Tamil Nadu during next 24 hours and over south Tamil Nadu, Rayalseema, south coastal Andhra Pradesh, south interior Karnataka and Kerala during subsequent 24 hours. Squally wind speed reaching 40-50 kmph gusting to 60 kmph would prevail along and off north Tamil Nadu, Puducherry and adjoining Pudukkottai and Ramanathapuram districts of south Tamil Nadu coasts during next 24 hrs. It would increase gradually becoming 55-65 kmph gusting to 75 kmph along and off above coasts from tomorrow. State of sea would be rough to very rough along and off north Tamil Nadu, Puducherry and adjoining Pudukkottai and Ramanathapuram districts of south Tamil Nadu coasts during next 48 hours. Fishermen are advised not to venture into sea along and off north Tamil Nadu, Puducherry and adjoining Pudukkottai and Ramanathapuram districts of south Tamil Nadu coasts during next 48 hours.