Tornadoes and flash floods can happen at the same time. But the safety instructions for what you’re supposed to do during each one often contradict one another. Now meteorologists and social scientists are working together to identify when these two severe weather events occur together and how best to communicate that information to the public.

Originally released by Inside Science, 2017. Streaming video file encoded with permission for digital streaming by Infobase on December 08, 2017.