What are heat waves?

GS Paper 1: Topics Covered: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclones etc.   Context: The Konkan region, including Mumbai, has been experiencing sweltering heat in the recent days, with maximum temperatures touching the 40-degree mark.   So, why is Konkan experiencing heatwave conditions? The ongoing heatwave in Konkan, including Mumbai, is …