Chennai: There is a possibility of the Deep Depression (DD) over Southwest Bay of Bengal might marginally intensify into a Cyclonic Storm, before weakening and cross the North Tamil Nadu coast between Karaikal in Puducherry and Mahabalipuram, about 55 km from here, on November 30 morning.
Officials said because of wind shear the movement of the system, which moved at 13 kmph yesterday, lost the steam and was moving slowly, resulting in delay in intensifying as a Cyclonic storm leading to less rains.
Due to lack of cloud cover it will not be a strong Cyclonic Storm as the DD might marginally intensify as a Cyclonic storm and weaken, Met Office Director S Balachandran told reporters today afternoon.
Met office said on Thursday that the DD remained practically stationary during the past six hours and lay centred over the same region about 110 km eastnortheast of Trincomalee, 310 km southeast of Nagappattinam, 410 km southeast of Puducherry and 480 km south-southeast of Chennai.
It is very likely to move nearly north-northwestwards skirting Sri Lanka coast during next 12 hours.
Thereafter, it will continue to move north-northwestwards and cross North Tamil Nadu and Puducherry coasts between Karaikal and Mahabalipuram around morning of November 30 as a Deep Depression with a wind speed of 50-60 kmph gusting to 70 kmph.
There is a possibility of marginal intensification of the Deep Depression into a Cyclonic Storm with wind speed 65-75 kmph and gusting up to 85 kmph over Southwest Bay of Bengal during the evening of today to tomorrow morning.
A continuous watch is being maintained for the movement and intensification of the system.
Light to moderate rain at a few places with thunderstorm and lightning at one or two places is
likely to occur over Tamilnadu (at many places over Coastal Tamilnadu and at a few places over Interior Tamilnadu), Puducherry and Karaikal area.
Heavy rain is likely to occur at isolated places over Chengalpattu, Villupuram, Cuddalore, Mayiladuthurai, Nagapattinam, Tiruvarur, Thanjavur, Pudukkottai, Ariyalur districts, Puducherry
and Karaikal area.
Scattered heavy to very heavy rain with extremely heavy rain at one or two places is likely to occur over Chengalpattu, Villupuram, Cuddalore, Mayiladuthurai, Tiruvarur, Nagapattinam districts, Puducherry and Karaikal area tomorrow.
Heavy to very heavy rain is also likely to occur at scattered places over Chennai, Tiruvallur, Kancheepuram, Ariyalur and Thanjavur districts.
Heavy rain is likely to occur at isolated places over Ranipet, Tiruvannamalai, Kallakurichi, Perambalur, Tiruchirappalli, Pudukkottai, Sivaganga and Ramanathapuram districts.
On November 30, scattered heavy to very heavy rain with extremely heavy rain at one or two
places is likely to occur over Chennai, Tiruvallur, Kancheepuram, Chengalpattu, Villupuram, Kallakurichi, Cuddalore districts and Puducherry.
Heavy to very heavy rain is likely to occur at scattered places over Ranipettai, Tiruvannamalai, Perambalur, Ariyalur, Thanjavur, Tiruvarur, Mayiladuthurai, and Nagapattinam districts and Karaikal area.
Heavy rain is likely to occur at isolated places over Vellore, Tirupattur, Krishnagiri, Dharmapuri, Salem, Namakkal, Tiruchirappalli, Pudukkottai and Karur districts.
On December 1, Heavy to very heavy rain is likely to occur at isolated places over Nilgiris, Coimbatore, Tiruppur, Dindigul and Erode districts.
Heavy rain is likely to occur at isolated places over Krishnagiri, Dharmapuri, Salem, Namakkal,
Karur, Theni and Madurai districts, while Heavy rain is likely to occur at isolated places over
Nilgiris, Coimbatore, Tiruppur, Theni, Dindigul and Erode districts, the next day.
On December 3 and four, Light to moderate rain is likely to occur at a few places over Tamilnadu, Puducherry and Karaikal area.
