Significant amount of Rainfall (from 0830 hrs IST of yesterday to 0830 hours IST of today): (mm): Tamilnadu, Puducherry & Karaikal: Nagappattinam-310, Karaikal-287; Atiramapattinam-129, Cuddalore-98; M.O Pondicherry-95, Tiruchchirapalli-54, Chennai-18, Tondi-17.