From today, until Wednesday, 27th of May 2020 stay indoors from Noon till evening. India Meteorological Department (IMD) just declared heat wave in northern India.
Heatwave conditions over some parts, with severe heatwave over isolated pockets, are very likely over Punjab, Haryana, Chandigarh, Delhi, Rajasthan, Uttar Pradesh, Madhya Pradesh, Vidarbha and Telnagana over the next five days,” IMD’s press release said on Sunday.
The temperature is likely to oscillate between 46-48 degrees Celsius in all the core heatwave states minus Uttar Pradesh.
Government has said the red warning has been issued to caution people not to step out during 1 pm to 5 pm, when the intensity of the heat is the most.
Heat wave is considered if 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. Following criteria are used to declare heat wave:
a) Based on Departure from Normal
Heat Wave: Departure from normal is 4.5°C to 6.4°
Severe Heat Wave: Departure from normal is >6.4°C
b) Based on Actual Maximum Temperature (for plains only)
Heat Wave: When actual maximum temperature ≥ 45°C
Severe Heat Wave: When actual maximum temperature ≥47°C
To declare heat wave, the above criteria should be met at least in 2 stations in a Meteorological subdivision for at least two consecutive days and it will be declared on the second day.
