New York uses drones that are not always easy to understand to warn the public about floods

Drones are increasingly being used by the emergency services in the event of an earthquake or after a storm, whether to assess the extent of material damage or to locate victims. In New York, where tens of thousands of miles of rain have fallen in the few hours after Tropical Storm Debby, authorities have used drones to warn residents ahead of the downpour and the dangers of flood