- India
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Since the beginning of March there have been at least 26 heatwave days, and as many as four spells of heatwaves in a little over a month and a half. The last of these heat waves remains ongoing.
According to the Health Ministry, a heatwave is declared when the maximum temperature of a station reaches at least 40°C or more for plains, 37°C or more for coastal stations, and at least 30°C or more for hilly regions.
Based on departure from normal temperatures, the following criteria are used to declare a heatwave:
Heatwave: Departure from normal is 4.5°C to 6.4°C
Severe Heatwave: Departure from normal is >6.4°C
And, based on actual maximum temperature in plains, the following criteria is considered:
Heatwave: When the actual maximum temperature ≥ 45°C
Severe Heatwave: When actual maximum temperature ≥47°C
The Health Ministry recommends a list of measures you can take to stay safe in this period
Dos:
If a person feels unwell — especially the elderly, children, pregnant women, those with pre-existing medical conditions, and outdoor workers — they should immediately shift to a cooler place, put on minimum clothing, be sponged with cold water and be transported to the nearest health facility.
Don’ts: