The last of days have seen North Tamil Nadu go through fairly hot conditions with Chennai Airport recording two consecutive days of 40°C while the city observatory recorded 39 & 39.1°C respectively. After 2004 this is the first year Chennai City Observatory (Nungambakkam) has not seen the entire month of May pass by without touching 40°C.
Today also we are likely to see fairly hot conditions persist over North Tamil Nadu with places in the districts of Tiruvallur, Kanchipuram, Villupuram and Tiruvannamalai recording 40°C in isolated places including a few suburbs of Chennai.
While the Southwest monsoon has made onset and progressed rapidly up to Karwar Latitude in the west coast over the East coast it is still at the latitude of Thoothukudi only. This inconsistent progress is likely to trigger some thunderstorm possibilities over interior areas of Peninsular India. Areas in Interior TN like parts of Vellore, Krishnagiri, Tiruvannamalai & Dharmapuri along with adjoining parts of Rayalaseema and South Karnataka is likely to benefit from these rains.