Heatwave grips Tamil Nadu: Karur, Dharmapuri breaches 40-degree mark

Chennai (Tamil Nadu) [India], April 6 : As heatwave hits Tamil Nadu, Karur and Dharmapuri breached the 40-degree mark, as per India Meteorological Department's Chennai office.
These districts reported maximum temperatures of 41.0 degrees Celsius and 40.7 degrees Celsius, respectively.

Heatwave is a condition of air temperature which becomes fatal to human body when exposed. It is defined based on the temperature thresholds over a region in terms of the actual temperature or its departure from normal. In certain countries, it is defined in terms of the heat index based on temperature and humidity or based on the extreme percentile of the temperatures.
Heatwave is considered if maximum temperature of a station reaches at least 40 degree C or more for Plains and at least 30 degree C or more for Hilly regions.
IMD had also forecast that heatwave conditions were likely to prevail over parts of east and peninsular India till today.
Regions that were likely to see heat waves were Odisha, Gangetic West Bengal, Jharkhand, Vidarbha, North Interior Karnataka, Coastal Andhra Pradesh and Yanam, Rayalaseema and Telangana.
IMD advised people to avoid heat exposure, wear lightweight, light colour, loose cotton clothes, cover head, use a cloth, hat or umbrella.