At least two people have died and approximately 15 remain missing following a major flash flood that swept through the Grand Canyon, park officials announced Monday. Search and recovery operations are ongoing, and forecasters have warned of the potential for additional storms and flooding in the popular tourist destination.

The deluge, which occurred Saturday in Bright Angel Creek, also caused significant damage to the canyon's sole water pipeline, forcing emergency water restrictions for permanent residents and barring visitors from lodges and hotels. Video from the affected area showed muddy, debris-filled floodwaters carrying remnants of structures and rocks.

According to the National Weather Service, four "waves of rainfall" impacted two creek drainages over the weekend, leading to rapid flash flooding. The Grand Canyon typically receives less than 10 inches of rain annually, making summer monsoon season risks, including flash floods, a significant concern.

The first three rain waves appear to have primed the drainages, causing creeks to flow at minor levels before a fourth wave intensified the flooding. Rain also fell on the Dragon Bravo fire scar, a burn area from a July 2025 wildfire, which meteorologists noted could exacerbate concerns about flash flooding.

One body, identified as that of a 46-year-old man, was recovered Sunday evening near Crystal Rapids along the Colorado River. At least one other body has been confirmed recovered. More than 60 people have been airlifted out of the canyon. Park officials are urging anyone with information about unaccounted-for hikers or campers to come forward.

Arizona Governor Katie Hobbs expressed her condolences and stated that the state's Department of Emergency and Military Affairs is coordinating with park and county emergency management officials on the search and recovery efforts.

Parth Desai, a physician who was hiking in Bright Angel Canyon with colleagues and a park ranger, described witnessing the creek flood, with waterfalls emerging unexpectedly and landslides occurring. He recounted a moment when a 4-foot debris wall approached their group, prompting them to scramble to higher ground. They were eventually rescued by helicopter.

In August 2024, a woman was swept away and later found deceased after a flash flood in the Havasupai region of the Grand Canyon.

The floodwaters damaged or destroyed footbridges over Bright Angel Creek, widening the creek bed and altering the flow into the Colorado River. This event has impacted a critical water pipeline modernization project, which began in 2023 and was scheduled for completion next year. Preliminary assessments indicate approximately 40% of the Transcanyon Waterline has been damaged or destroyed. The park service had deemed this a crucial investment to serve the park's 6 million annual visitors and roughly 1,600 residents.

While the Grand Canyon has water storage tanks on the South Rim, these will not be replenished with the pipeline out of service. Halting overnight stays due to water shortages is rare, though the pipeline has a history of failures.