Weather & Slot Canyons

Weather is a major factor to consider when canyoneering! Probably one of the easiest and safest things that anyone can do – is check the weather for rain in the forecast.  It’s best said – don’t go, even with a chance of rain.

Weather: Flash Flood Risks

Check the Weather: 

Always check the forecast for rain. If there’s any chance of rain, don’t go.

Flash Flood Risks: 

Most common during summer monsoon (June–September), flash floods can develop rapidly, with water levels rising within minutes.

Flood Warning Signs:

• Cloud buildup or thunder
• Rising or muddy water levels
• Floating debris
• Stronger currents or a roaring sound up canyon
• Sudden weather changes

Remember: Flash floods can be life-threatening. Stay alert and cautious.

Weather: Temperature Risks

Extreme Conditions:

• Summer: Desert temps can exceed 100°F (37°C), leading to heat exhaustion and dehydration.

• Winter: Temps can drop below 32°F (0°C), with ice or snow blocking paths and anchors.

Preparation Tips:

• Start with “ideal” conditions as a beginner.

• Always carry enough water and a filter for the entire trip.

• Be prepared for unexpected obstacles, like building anchors in snow or ice.

Key Risks: Heat exhaustion, dehydration, and running out of daylight. Plan accordingly!

Weather: Water Flow

Dangers of Flowing Water:

• Limits visibility, drowns out voices, and can push gear and people.
• High water flow can lead to immobilization or drowning scenarios.
• Flash floods can occur unexpectedly, with water levels rising within minutes or seconds. 
• Floods can reach heights of 12 feet or more! 

Key Safety Tips: 

• Always check weather and flash flood forecasts before your trip. 
• A “30% chance of rain” means 30% of the area could see measurable rain, not just a slim likelihood.
• Continuously evaluate weather and seek high ground immediately if conditions worsen. 
• Wait for water levels to drop—usually within 24 hours—before proceeding.

Preparation and vigilance are key to staying safe!