India Meteorological Department has advised fishermen not to venture into open sea. Those who are out at sea are advised to return to the coast and total suspension of fishing operation is advised.
Sea will be very rough to high along and off Tamil Nadu and Puducherry coast from 29th December 2011 onwards due to approaching cyclonic storm "THANE".
Squally weather with wind speed reaching 50-60 Kmph likely to commence along off coastal districts of North Tamil Nadu and Puducherry from 29th December 2011 onwards. Gale force wind with speed reaching 100-110 kmph gusting to 125 kmph would prevail along off North Tamil Nadu and Puducherry Coast at the time of landfall.
Tidal wave with height 1.0 metres above astronomical tide would inundate the low lying areas of Chennai, Tiruvallur, Kanchipuram, Cuddalore, Villupuram and Nagapattinam districts of North Coastal Tamil Nadu and Puducherry at the time of storm crossing the coast.
Great danger signal number Ten kept hoisted at Puducherry port, Great danger signal number Nine kept hoisted at Chennai and Ennore ports and Great danger signal number Eight kept hoisted at Cuddalore and Nagapattinam ports. Local cautionary signal number Three kept hoisted at Pamban and Tuticorin ports.
Under the influence of this system, rainfall at most places with isolated heavy falls likely to commence over North coastal Tamil Nadu and Puducherry from 29th December 2011 onwards. The intensity of the rainfall would increase with heavy to very heavy falls at a few places and isolated extremely heavy falls from December 2011 onwards and extend to North Interior Tamil Nadu.