All weather stations in the national capital, barring one, recorded a maximum temperature above 44 degrees Celsius on Sunday as warm and dry westerly winds were blowing over northwest India. Delhi’s base station Safdarjung Observatory recorded a maximum temperature of 43.9 degrees Celsius, four notches above normal.
The maximum temperature recorded was 46.7 °C. Play Complex automatic weather station near Akshardham Temple, making it the hottest place in the city. Najafgarh, Mungeshpur, Pitampura and Ridge stations recorded maximum temperatures at 46.4 °C, 46.2 °C, 45.8 °C and 45.8 °C, respectively.
India The Meteorological Department (IMD) has issued a yellow alert in some parts of Delhi on Monday giving a heat wave warning. IMD uses four color codes for weather warnings – green (no action required), yellow (watch and stay updated), orange (be prepared) and red (take action).
Meteorologists have attributed the heat wave to the absence of a strong western disturbance and continuous hot and dry westerly winds. He said that by June 15-16, there is a possibility of getting a big relief from the scorching heat.
Thunderstorms, cloudy sky, strong winds and light rain are forecast over the coming weekend. The maximum temperature of Safdarjung Observatory may drop to 38 degree Celsius till Saturday. Mahesh Palawat, vice-president (climate change and meteorology), Skymet Weather, said that the monsoon is likely to reach Delhi around June 27, the normal date. There is no system that can stop its progress. A clear picture will emerge in a week or two.
Last year, the IMD had predicted that the monsoon would reach Delhi about two weeks before its normal date. However, it reached the capital only on 13 July, making it the most delayed in 19 years. Palawat recalled that the monsoon had entered the “break” phase and there was almost no progress from June 20 to July 8.
A heatwave is declared when the maximum temperature exceeds 40 degrees Celsius and is at least 4.5 degrees above normal. According to the IMD, if the departure from normal temperature is more than 6.4 degrees, a severe heatwave is declared. Based on the absolute recorded temperature, a heatwave is declared when an area registers a maximum temperature of 45 °C. A severe heat wave is declared when the maximum temperature crosses 47 degree Celsius.