New Delhi: After a few days of relief, the people of Delhi and its surroundings may once again have to face the heatwave. The Indian Meteorological Department (IMD) has issued a yellow alert as the mercury is most likely to rise in the national capital and heatwave conditions to return in the region from Wednesday.


According to meteorologists, this heatwave phase may continue till May 15 as there is no chance of a decrease in temperature in Northwest India in the next one week.


Delhi's base station Safdarjung Observatory on Monday recorded a maximum temperature of 40 degrees Celsius, a degree above normal for this time of year. The minimum temperature was recorded at 27.6 degree Celsius.


Incessant light rain, thunder and strong winds provided some respite from the scorching heat last week. After which the mercury started climbing again on the weekend and on Sunday it went beyond 42 degrees somewhere.


The relative humidity at 8:30 AM on Tuesday remained at 61%, as per the information shared by the India Meteorological Department (IMD).


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The most extreme temperature on Tuesday is probably going to float around 41 degrees Celsius.


The minimum and maximum temperature readings on Wednesday are probably going to settle at 28 degrees Celsius and 44 degrees Celsius separately with a heatwave conjecture, as per IMD information.


A heatwave in April-end had sent the most extreme temperature taking off to 46 and 47 degrees Celsius in several parts of Delhi.


The Air Quality Index (AQI) of Delhi was kept in the moderate (151) classification at 9:50 AM, information from CPCB showed.


An AQI between zero and 50 is considered good, 51 and 100 satisfactory, 101 and 200 moderate, 201 and 300 poor, 301 and 400 exceptionally poor, and 401 and 500 severe.