15 people may be missing after Grand Canyon flooding as dozens are evacuated

Flash Floods Sweep Through Grand Canyon’s Bright Angel Canyon, Leaving Dozens Evacuated and Hikers Unaccounted For

Earthguardiansonline.com – A powerful flash flood tore through one of the most heavily visited sections of Grand Canyon National Park on Saturday, severing trail access, destroying critical infrastructure, and leaving approximately 15 people unaccounted for as of Sunday. The event struck Bright Angel Canyon and the Phantom Ranch area, forcing the evacuation of at least 62 visitors and triggering ongoing search operations by park rangers and state emergency personnel.

Revised Missing Count and Ongoing Search

The National Park Service initially cited a working estimate of 20 hikers missing or unaccounted for in the hours following Saturday’s flood. By Sunday, that figure had been narrowed to roughly 15, though officials cautioned the number could shift as search teams work through the affected terrain. At least 62 people had been evacuated as of Sunday, with further removals planned for the day, targeting Cottonwood Campground and the Phantom Ranch area, with operations coordinated between park rangers and the Arizona Department of Public Safety.

No injuries had been reported as of Sunday afternoon. Park authorities urged anyone with information about hikers or backpackers who may have been in the flood zone to reach out through the agency’s tip line.

A Hiker’s Account of the Rising Waters

David Gregory, who was hiking with a small group when the creek surged, described the moment the situation became unmistakable.

“We realized the creek near camp was black with debris and flowing rapidly,” Gregory said.

His group was lifted out by helicopter and transported to a nearby high school before being arranged for overnight lodging at a local hotel. The evacuation underscored how quickly conditions in the canyon can shift from routine trail walking to emergency extraction within minutes.

Widespread Infrastructure Destruction

The flood’s force inflicted severe damage across the Bright Angel Canyon corridor. According to the National Park Service, nearly every footbridge spanning Bright Angel Creek was destroyed, effectively severing hiker access across the waterway. The surge also widened the creek bed substantially, carving out what observers described as a new river rapid.

The Bright Angel Trail, which descends from the South Rim into the canyon floor, is the park’s most heavily used hiking route. Its disruption means that thousands of annual visitors who rely on this corridor for day hikes and overnight descents will face closed or altered conditions until repairs are completed. Phantom Ranch, a historic campground and trailhead established in the 1920s and operated under concession for decades, sits directly in the flood’s path and faces its own recovery challenges. The loss of footbridges in particular compounds the problem, because without them hikers cannot cross the creek at its usual fording points, effectively isolating the lower trail segments from the upper canyon.

Weather Pattern and Forward Outlook

A series of storm cells struck the canyon on Saturday, arriving in the early morning hours and returning again in the evening. Approximately one inch of rain accumulated over the preceding 24-hour period. By Sunday, showers had largely shifted to the north rim, where rainfall rates as high as one inch per hour were recorded.

Forecasters indicated that additional storms were possible overnight and into early Monday. Rangers warned that any new rainfall, falling on already-saturated ground, could trigger further flash flooding. They also flagged the risk of debris flows, rockfall, and rapidly changing trail and river conditions as the canyon’s hydrology adjusts.

Why Flash Floods Hit This Area So Hard

Grand Canyon’s geology makes it especially vulnerable to sudden, violent flooding. The canyon walls are composed largely of porous sandstone and shale that absorb rainfall slowly, while the canyon floor channels water into narrow creek beds. When storms dump intense rainfall over a short period, runoff concentrates rapidly in these confined channels, producing flash floods that can rise several feet in minutes. Bright Angel Creek, which drains a substantial portion of the canyon’s southern watershed, is particularly prone to this behavior.

The combination of saturated ground from Saturday’s storms and the possibility of additional rain Monday creates conditions where even modest additional rainfall could produce outsized runoff. Hikers and campers in the canyon are advised to monitor weather closely, avoid creek beds during and after storms, and heed ranger advisories without delay. For those planning trips in the coming days, trail closures and altered river conditions may persist well beyond the immediate storm window, as crews assess structural damage and clear debris from the canyon floor.