More number of heatwave days in India

Indian Meteorological Department (IMD) has predicted an “above-normal number of heatwave days” over most parts of the country. The IMD has said during the April to June summer season, “above normal” heatwave days are expected in practically the entire northern, central and eastern India.

Heatwaves are concentrated periods of abnormally high temperatures, usually over relatively smaller areas.  With soaring global temperatures, heat waves have become more frequent and intense in the country.

Heatwaves in India

Heatwaves are not defined by high temperatures. They are defined by abnormalities in temperature. For example, a place that normally sees a temperature of 40 degrees Celsius during summer is not said to be experiencing a heatwave even if the temperature rises to 42 or 43 degrees. On the other hand, another location would be said to be facing a heatwave even at 35 degrees if its normal temperature during that time is 27 or 28 degrees.

Prolonged exposure to heat can result in dehydration and cardiovascular and respiratory diseases, and exacerbate existing weaknesses, even leading to sudden deaths.