Flash flooding is a sudden and intense flood that occurs within six hours of heavy rainfall or other events, such as dam breaks. It can happen in urban areas where water cannot easily drain away, leading to rapid water accumulation. Flash floods can be extremely dangerous, as they can rise quickly and catch people off guard. These floods are often caused by severe weather conditions, including thunderstorms and hurricanes. The National Weather Service issues warnings to alert communities about the potential for flash flooding. It is important for individuals to stay informed and take precautions during heavy rain events to ensure their safety.