Yesterday saw Northeast Monsoon vigorous over North Tamil Nadu once again with many places in the coastal region getting moderate to heavy rains. The Airport observatory received 49 mm from rains yesterday while the COMK weather station in Anna Nagar has received 30 mm till morning.
The rains are expected to slow down over Coastal Tamil Nadu as the Easterly trough which has created the wind convergence effect has moved slightly North towards South Karnataka / Rayalseema region. This could bring heavy rains over few places in South Karnataka, Rayalseema and North Interior TN particularly around Vellore / Tiruvannamalai / Krishnagiri districts. Rest of the state would slowly start to see reduced rains as the day progresses. North Coastal TN could see early morning rains at many places which would stop as the day breaks.
The places in Coimbatore / Tiruppur district could see a third day of rains while parts of Delta region around Thanjavur, Perambalur & Trichy districts could see isolated spells of rains with one or two places getting heavy rains. 
Chennai Weather Update: Early morning rains in a few areas which could slow down as the day progresses. Cloudy day with isolated spells of rains will be the order of the day with possible rains once again picking up around late in the night.