India, April 9 -- Delhi is under a "yellow alert" for heatwave conditions on Wednesday, with the India Meteorological Department predicting a maximum temperature of around 40-41 degree Celsius. Minimum temperatures have also risen sharply, with the city recording its warmest night of the season at 25.6 degrees-about 5-7 degrees above normal. Maximum temperatures are 4-6 degrees above normal at several locations across Delhi-NCR.

The weather is expected to remain mainly clear, with light south-easterly winds at around 8 kmph. The IMD said that heatwave conditions were observed at a few places, along with warm night conditions in most parts of Delhi-NCR.

According to IMD criteria, a heatwave is declared when temperatures reach 40degC in p...