Odisha, located on the eastern sea coast of India is prone to cyclones that originate in the Bay of Bengal. On 17 – 18 October 1999, cyclone hit five districts of the state. Another super cyclone occurred on the 29 October 1999 that devastated large portions of the state. The three reasons for which the damages caused were: wind velocity of up to 260 km/h for over 36 hours. Heavy rain occurred which led to flooding in the major rivers of Odisha. The cyclonic winds caused 7 to 10 m high tidal waves that swept 20 km. inland and brought massive destruction to the coastal areas.
The cyclone originated in the Gulf of Thailand, near east of Port Blair, on 25 October 1999 and moved in northwestward direction. The cyclone hit the area between Erasama and Balikuda in Odisha on 29 October at 10.30 am.
The super cyclone swept the entire coast of Odisha including the cities of Bhubaneshwar and Cuttack and 28 coastal towns. About 13 million people were affected. It also vanished the mangrove forests between Paradeep and Konark.