Author(s): Sadhuram Y
A well-marked low pressure area that formed over Gulf of Thailand on 24 October 1999 intensified rapidly over the Andaman Sea by 26 October and further intensified into a very severe cyclonic storm by 27 October. Moving in a northwesterly direction, it intensified into a ‘super cyclonic storm’ over a hundred kilometres southeast of the port-town of Paradeep by 28 October. It crossed the coast at Paradeep on 29 October1 . The system was practically stationary for 30 h after landfall and a record rainfall of 530 mm was observed at Paradeep on 30 October. The intensity of the storm increased from T4.5 to T7.0 from 28 to 29 October (i.e. 2.5 T/ day), which is much higher than the usually recognized rapid rate of 1.5 T/day observed over the Atlantic Ocean2 . The lowest central pressure of 912 hPa observed in this super cyclone was the minimum so far for any tropical cyclone in the Bay of Bengal.