Heavy rainfall swept across the Grand Canyon on Monday, jeopardizing rescue operations for over a dozen individuals reported missing following the weekend’s flash floods, according to the National Park Service (NPS). Two victims’ bodies had already been recovered.
The flooding impacted the renowned Bright Angel Canyon and Phantom Ranch sections of the park Saturday afternoon, prompting numerous evacuations and inflicting damage to the only water pipeline supplying the area.
A 46-year-old man’s body was recovered on Sunday evening, the park authorities confirmed. By Monday, a second body had been found, but officials cautioned that worsening weather conditions could hinder the pace and timing of ongoing search efforts.
In the afternoon, low clouds enveloped the deep canyon, and the National Weather Service issued alerts predicting additional flooding risks due to anticipated rain and thunderstorms.
The agency’s bulletin warned that “flash flooding may occur in creeks, dry washes, swimming holes, and recently burned areas. Strong, destructive currents could develop in side and narrow slot canyons. Low-water crossings may be submerged.”
Visitors on Monday afternoon, mostly international tourists, sheltered under umbrellas and wore rain ponchos while standing along the South Rim, capturing photos and trying to glimpse the Colorado River far below.
Videos from weekend hikers depicted torrents of muddy water rushing past trails and under footbridges, with logs and debris floating downstream accompanied by thunderous roars.
The park is collaborating with Arizona officials to evacuate stranded visitors and locate missing persons. As of Sunday morning, 62 individuals had been evacuated, with plans for additional rescue missions. Authorities believe approximately 15 individuals remain unaccounted for.
A press briefing was scheduled later Monday, where emergency responders, along with local and park officials, were expected to update the public on the ongoing rescue efforts.
### Water Pipeline Damage
The flooding inflicted severe damage, destroying or impairing 40% of the Transcanyon Waterline—the primary pipeline bringing water into Grand Canyon National Park. The disturbance prompted the park to impose water restrictions in its busiest areas and ban fires fueled by wood or charcoal.
This twelve-and-a-half-mile pipeline runs from the Roaring Springs source on the North Rim to the South Rim, supplying drinking water and supporting firefighting efforts, as detailed on the park’s website.
Floodwaters also caused significant infrastructure damage, destroying footbridges and blocking trails that cross Bright Angel Creek. Nevertheless, access into the canyon from the South Rim remains open, although staff continue to warn visitors of potential sudden weather hazards, especially during the Southwest monsoon season.
A common strenuous activity is the descent into the canyon’s depths, which typically takes about four hours for most hikers, with a six-hour return ascent. The park emphasizes that flash floods are frequent in Northern Arizona due to the area’s dry, sparse vegetation, which lacks the capacity to absorb heavy rains—particularly from July through mid-September.
The Grand Canyon, often regarded as one of the world’s greatest natural wonders, was carved over millions of years by the Colorado River eroding layers of red sandstone and other rocks, creating a vast chasm spanning up to 18 miles wide and over a mile deep.
In 2022, nearly five million people visited this iconic site.