A cyclonic circulation is likely to develop over the Southeast Bay of Bengal. (Representational)
Cyclonic circulation that was hovering over north Tamil Nadu on Wednesday now lies over coastal Tamil Nadu, said India Meteorological Department's (IMD) Regional Meteorological Centre, Chennai.
"Yesterday's cyclonic circulation over north Tamil Nadu and neighbourhood now lies over coastal Tamil Nadu and neighbourhood and extends upto 3.1 above mean sea level," said the Regional Meteorological Centre in a statement issued on Thursday.
"Yesterday's trough/wind discontinuity from southwest Madhya Pradesh to south Tamil Nadu across Marathwada and interior Karnataka extending upto 1.5 km above mean sea level has become less marked," the statement added.
A cyclonic circulation is likely to develop over the Southeast Bay of Bengal around May 6. Under its influence, a Low-Pressure Area is likely to form over the same region around May 7.
It is likely to concentrate into a Depression over the Southeast Bay of Bengal on May 8. Thereafter, it is likely to intensify into a Cyclonic Storm while moving nearly northwards towards the central Bay of Bengal, the Regional Meteorological Centre said.
RMC Chennai said for the next five days light to moderate rain at many places with thunderstorms and lightning at isolated places is likely to occur over Tamilnadu, Puducherry and Karaikal areas.
Heavy rain is likely to occur at isolated places over Ramanathapuram, Sivaganga, Pudukkottai, Thanjavur, Tiruvarur, Nagapattinam, Mayiladuthurai, Tiruchirappalli, Perambalur, Ariyalur, Cuddalore, Kallakurichi, Tiruvannamalai, Tirupattur, Vellore, Ranipet, Salem, Namakkal, Madurai, Dindigul districts and Karaikal.
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