Delhi Records Heatwave For 4th Consecutive Day, No Respite Till Tuesday

Delhi weather update: The Safdarjung Observatory, considered the official marker for Delhi, recorded a maximum temperature of 41.8 degrees Celsius.

Delhi reeled under a heatwave for the fourth consecutive day on Sunday with the India Meteorological Department predicting similar conditions for the next two days. The Met office has issued an 'orange' alert warning of a severe heatwave in the city for Monday.

The IMD uses four colour codes for weather warnings -- green (no action needed), yellow (watch and stay updated), orange (be prepared) and red (take action).

The capital has recorded four heatwave days so far in April this year, equalling the number of such days in the month in 2017.  For the plains, a 'heatwave' is declared when the maximum temperature is over 40 degrees Celsius and at least 4.5 notches above normal. A 'severe heatwave' is declared if the departure from normal temperature is more than 6.4 notches, according to the IMD.

The Sports Complex station was the warmest place in the city with a maximum temperature of 44.1 degrees Celsius. The mercury settled above 42 degrees Celsius at most places.  The Safdarjung Observatory, considered the official marker for the city, recorded a maximum temperature of 41.8 degrees Celsius, six notches above normal. On Saturday, it had recorded a high of 42.4 degrees Celsius, the highest in April in five years.