Flash Flooding: know the risks and stay prepared

21st July 2026 News

As temperatures rise, so does the risk of flash floods. Climate change is intensifying summer storms, leading to sudden and destructive flooding. Calderdale’s steep valleys and riverside communities make us especially vulnerable to extreme weather events.

Recognise the key signs of flash flooding:

Flash floods can occur with little warning, making it crucial to stay alert. Watch for these key signs:

  • Heavy rain or severe weather reports: Stay informed about the weather. If heavy rain or severe weather is forecast, be on high alert for potential flooding.
  • Rising water levels with churning dark water: If you notice water levels rising rapidly and the water appears dark and turbulent, it’s a clear sign that a flash flood could be imminent.
  • A build-up of debris in rivers or streams: Debris accumulating in waterways can obstruct the flow and increase the risk of flooding. Keep an eye on local rivers and streams for any unusual build-up.
Take the new flash flooding quiz

Test your knowledge of flash flooding with this quick true-or-false quiz. Learn key facts, stay safe, and understand risks in your area.

For more information on how to prepare, visit: https://eyeoncalderdale.com/flash-flooding/

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