The devastation due to Chennai floods has brought stark images of the misery faced by people in the city and this carnage was reflected across Tamil Nadu itself with as many as 347 people killed in the state since October 1, and 17.64 lakh people being rescued and housed in relief centres, the government said on Thursday. As a consequence, the Chennai weather forecast has became the most talked about topics in conversations and the weather department has become a concentrated area of focus for the country as a whole. The latest weather forecast has predicted heavy rains in Tamil Nadu but said there may be rains or thundershowers at a few places in Kanyakumari and Tuticorin districts and isolated rains in the rest of the state and Puducherry. The Tamil Nadu government has said in a statement that a total of 6,605 relief centres were opened in the state. The rains and floods also killed 3,889 cattle. Heavy rains - the worst in a century - battered Chennai, Kanchipuram, Cuddalore and Thiruvallur districts for the past month resulting in unprecedented floods and causing widespread destruction. Kanchipuram is located 70 km from Chennai. Thiruvallur and Cuddalore are 39 and 185 km away from here respectively. Immediate relief amount of Rs 67.47 crore has been disbursed to 111,278 families, the statement added. PMK founder S. Ramadoss, however, put the rain and flood damage in the state at around Rs 100,000 crore.