India, May 21 -- Parts of Delhi recorded the season's first "warm night" as the minimum temperature stayed over 30degC, with Safdarjung, the city's base station for weather, logging 31.9degC, five degrees above normal, making it the warmest night in May in 14 years, even as intense heat was expected to continue. Isolated severe heatwave conditions were expected on Thursday, with the maximum temperature likely to hover between 45-47degC.

The India Meteorological Department (IMD) has issued an orange alert for heatwave conditions in the city until at least May 27. "Some parts of Delhi recorded warm night conditions on Thursday," said an IMD official.

The IMD classifies a "warm night" when the maximum temperature is over 40degC in the plai...