A Flash Flood Watch is now in effect across northern Arizona through Monday, as slow-moving thunderstorms threaten to trigger dangerous flash flooding in wildfire burn scar areas. The National Weather Service in Flagstaff warns that heavy rain could lead to fast-developing floods, especially in regions affected by the Dragon Bravo and White Sage wildfires.
High Risk Near Burn Scars and Canyon Drainages
Rainfall over burn scars can cause water to rush through canyons and washes with little warning. The biggest concerns this weekend are:
Kaibab Plateau
Areas near Jacob Lake, Page, and Supai
Grand Canyon National Park, especially creeks and canyons such as:
Bright Angel Creek
Kwagunt Creek
Crystal Creek
These areas are especially vulnerable to debris flows, which happen when loose ash, rocks, and soil wash down steep slopes during a heavy rainstorm.
What Makes This Situation Risky?
After wildfires, the ground often can’t absorb water well. Even a moderate thunderstorm can produce dangerous flash flooding in these burn areas.
Here’s why the risk is elevated:
Thunderstorms will be slow-moving, allowing more rain to fall over one location
Recent wildfires have left scorched, unstable hillsides
Flash floods can occur with little or no warning, even if rain is falling far upstream
Communities and Areas at Risk
Residents, hikers, and travelers near the following locations should stay alert:
Jacob Lake
Page
Supai
Kaibab Plateau
Grand Canyon backcountry areas
If you’re planning to hike or camp near creeks or canyons, reconsider plans or check for real-time alerts before venturing out.
Precautionary Safety Tips
Flash floods can become deadly quickly, especially in canyons and low-lying areas. Follow these guidelines:
Never enter floodwaters or drive across flooded roads
Avoid hiking in slot canyons, dry creek beds, or near steep terrain
Be ready to move to higher ground at a moment’s notice
Monitor NOAA weather alerts, park advisories, and local warnings
If camping, do not set up near creek beds or canyon floors
Weather Outlook Through Monday
| Day | Conditions | Threat Level |
|---|---|---|
| Saturday | Scattered thunderstorms; localized heavy rain | Moderate flood risk |
| Sunday | More widespread storms likely | Elevated flood threat |
| Monday | Continued thunderstorm activity | Flash flood watch ongoing |
Storm coverage may vary by day, but any thunderstorm over burn scar areas could cause dangerous runoff.
Northern Arizona is under a Flash Flood Watch through Monday as thunderstorms build over wildfire burn scars, increasing the risk of sudden flooding and debris flows. Areas in and around the Kaibab Plateau, Page, and the Grand Canyon should stay alert and avoid flood-prone spots. Whether you live in the area or plan to visit the backcountry, be prepared, stay informed, and make safety the priority during this weather alert.
