Friday, December 11, 2009

IMD on "96B" - 1130 hours IST

Sub: Cyclone Alert for Tamil Nadu and Puducherry coast : Yellow Message


The deep depression over southwest and adjoining southeast Bay of Bengal remained practically stationary and lay centred at 0830 hours IST of today, the 11th December 2009 near lat. 7.00 N and long. 84.50 E, about 350 km east-southeast of Batticaloa (Sri Lanka), 650 km southeast of Nagapattinam and 800 km southeast of Chennai. The system is likely to intensify further into a cyclonic storm and move in a west-northwesterly direction and cross Sri Lanka coast between lat. 8.50 N and 9.50 N by evening of tomorrow, the 12th December, 2009. Subsequently, it may emerge into Gulf of Mannar and cross Tamil Nadu coast by noon of 13th December 2009.

Based on latest analysis with Numerical Weather Prediction (NWP) models and other conventional techniques, estimated track and intensity of the system are given in the Table below:

Under its influence, rainfall at many places with isolated heavy to very heavy falls is likely to commence over coastal Tamilnadu and Puducherry from tomorrow, the 12th December 2009 morning. Subsequently, increase in rainfall activities with scattered heavy to very heavy falls and isolated extremely heavy falls is likely over south coastal Tamilnadu from 12th December 2009 evening onwards.

Squally winds speed reaching 55-65 kmph gusting to 75 kmph are likely to commence along and off Tamilnadu and Puducherry coasts from tomorrow, the 12th December 2009 morning. Sea condition will be very rough to high along and off these coasts. Fishermen are advised not to venture into the sea along and off these coasts.

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