Flagstaff, AZ – Northern Arizona is bracing for heavy monsoon rains on Friday that could trigger flash floods and debris flows, particularly in areas impacted by last year’s Dragon Bravo Fire. The National Weather Service (NWS) in Flagstaff has issued warnings for the Dragon Bravo Fire Scar, with Bright Angel Creek identified as one of the highest-risk areas for dangerous water surges.
Dangerous Flash Flooding and Debris Flows Expected
Monsoon moisture will fuel strong thunderstorms across the region on Friday afternoon and evening, with the potential for significant rainfall in a short period. The burn scars left by the Dragon Bravo Fire have made the soil in the region unstable, greatly increasing the likelihood of debris, rocks, and sediment washing into key drainages. The NWS has highlighted several areas of concern, including Kwagunt Creek, South Canyon, North Canyon, and Crystal Creek, which all flow toward the Colorado River. These areas are particularly vulnerable to rapid, life-threatening rises in water levels.
Even locations that are not typically prone to flooding could see sudden and severe water surges, posing serious risks to travelers, hikers, and residents. The rapid onset of flash floods could make these conditions dangerous with little warning.
Safety Tips for Hikers and Travelers
Travelers and hikers in the Grand Canyon area should avoid low-lying washes and canyon floors during the storms. Flash floods can occur miles downstream from rainfall, so even areas far from the storm’s center could experience rising waters. Park officials are advising visitors to carry weather radios, check updated forecasts before heading into the backcountry, and have a plan to seek higher ground immediately if water levels begin to rise.
Flood Risk Through the Weekend
The flash flood threat is expected to last through the weekend, as additional storms are forecast to develop. Residents and visitors are urged to remain vigilant, as the likelihood of more intense rainfall and flash flooding could lead to additional warnings or watches being issued.
What You Can Do to Stay Safe:
- Avoid low-lying areas such as washes, canyons, and creek beds during storms.
- Stay informed by carrying a weather radio and checking for updates before heading into the backcountry.
- If hiking, be prepared to move to higher ground quickly if water levels rise unexpectedly.
- Watch for signs of rising water or debris flows, and seek shelter immediately.
Given the combination of monsoon rains and unstable terrain in burn scar areas, staying weather-aware and prepared for sudden changes is critical to ensuring safety.
