Flood Risk Management Program
Flash Floods

Know Before You Go!


Weather Information


Media Resources

Flash floods, caused by a sudden rush of water filling a narrow space, are a powerful force in a slot canyon’s formation and a serious risk to slot canyon explorers. During a flash flood, rapidly moving water can transport rocks, tree limbs, and other debris which can crash into the canyon walls and congest passageways.

  Know Before You Go!

Signs of an impending flash flood:

  Roaring Water Sound

 Change in Water Color

 Surge in Water

 Increased Debris in the Water


If you get caught in a flash flood,

Always check the local weather forecast for the watershed before going into a slot canyon. Storms that cause flash flooding can occur miles away from a slot canyon, so check the forecast for the surrounding area. 

Always let someone know which slot canyon area you will be exploring. Check in at a nearby ranger station or visitor center, and always register for backcountry permits when required.

Always research the slot canyon ahead of time so you are aware of potential trouble spots. Pay close attention to your surroundings during the hike - look for rock ledges, strong tree limbs, and exit points in case you need to make a quick escape. Knowing an escape route ahead of time can save lives. 

  Weather Information 

  Media Resources

Slot Canyon Flash Flooding Informational Videos 


Slot Canyon Flash Flooding Graphics

Learn more about flooding hazards here