Chennai, Oct 28 : A Low Pressure area has formed over southwest Bay of Bengal off south Sri Lanka coast and would concentrate into a depression, promising heavy rains in several parts of Tamil Nadu during the next 48 hrs.
Met office sources said yesterday’s trough of low at mean sea level over the south west Bay of Bengal off Sri Lanka coast now lies as Low Pressure area over southwest Bay of Bengal off South Sri Lanka coast.
The system was likely to become more marked over the Comorin area and neighbourhood during the next 24 hrs and concentrate into a depression during the subsequent 48 hrs.
Under its influence, heavy rain is likely to occur at isolated places over TN, including Kanniyakumari, Thoothukudi, Tirunelveli, Ramanathapuram, Cuddalore, Villuppuram, Tiruvannamalai, Vellore, Kancheepuram, Tiruvallur, Virudhunagar, Madurai, Sivaganga, Pudukottai, Thanjavur, Tiruvarur and Nagapattinam districts during the next 48 hrs.
Light to moderate thunderstorm with lightning will also occur at isolated places over Tamilnadu during the same period.
Squally weather is likely to prevail along and off South Tamilnadu Coast, over Gulf of Mannar and Comorin Area.
Squally weather with lightning and thunderstorm, wind speed reaching 40-50 kmph and gusting to 60 kmph is likely to prevail over Southwest Bay, South Tamilnadu Coast, Gulf of Mannar and Comorin area during the next 24 hrs.
The forecast for the next two days was squally weather with lightning and thunderstorm, wind speed reaching 50-60 kmph gusting to 70 kmph is likely to prevail over Gulf of Mannar, South Tamilnadu Coast and Comorin area.
Fishermen are advised not to venture into these areas during the above period.
Fishermen in deep sea were advised to return to the coast by tomorrow morning.
Met office local cautionary signal Number 3 will be kept hoisted at Pamban, Thoothukudi, Rameswaram and Kolachel ports.
The forecast for Chennai and its suburbs was that the sky condition is likely to be generally cloudy. Light to moderate rain/thundershower is likely to occur in some areas during the next 48 hrs. (UNI)