India, May 25 -- Delhi recorded the second "warm night" this season, as the minimum temperature remained over 30degC amid slow-moving dust from Rajasthan in the early hours of Monday, even as a yellow alert remained in place for continuing intense heat in the region.

A "warm night" occurs when the maximum temperature is over 40degC in the plains, and the minimum temperature is 4.5degC or more above normal.

Safdarjung, Delhi's base weather station, logged a minimum temperature of 32.4degC, six degrees above normal, making it the warmest night for Delhi in May in 14 years. The last time it was higher was on May 27, 2012, at 34.2degC, India Meteorological Department (IMD) data showed. This eclipses the 31.9degC Delhi recorded on May 21, th...