North and Central India are set for a fierce heat spell from Monday, June 8, with temperatures climbing to 46 degrees Celsius. Here is the simple science behind the loo winds and the heat dome, and exactly when relief will arrive.

North and Central India are set for a fierce heat spell from Monday, June 8, with temperatures climbing to 46 degrees Celsius. Here is the simple science behind the loo winds and the heat dome, and exactly when relief will arrive.