Grand Canyon flood deaths lead to questions about alert system

A search and rescue operation is preparing to continue on Tuesday to locate the final missing individual among the victims of flash floods that struck sections of the Grand Canyon over the weekend. At least two people lost their lives in the significant flash floods, with Dr. John Giusti, a 46-year-old chiropractor from Granbury, Texas, confirmed dead by his family.

Brent Rosenkranz, 42, another friend, also perished, according to a family spokesperson. Timothy Allen Smith, 53, remains unaccounted for as of Monday night, his family reported. Officials stated at a press conference on Monday night that an alert system had been installed in Bright Angel Creek, the locale of the catastrophic flash floods that occurred over the weekend.

The system, installed following a wildfire last year that made the mountain slopes extremely vulnerable to such disasters, comprises river gauges designed to issue alerts when water levels in the creek surpass a specific threshold. Brian Drapeaux, the acting superintendent of Grand Canyon National Park, clarified that the system had alerted officials to rising water levels in the creek on Saturday.

However, it subsequently went offline as the situation escalated downstream and gained momentum, posing a severe threat. Drapeaux noted that the cause of the system's failure remains uncertain, with the possibility of either floodwaters or another factor being responsible for the system's disconnection. He emphasized that officials are unsure whether the outage was caused by debris flow or some other factor.

Grand Canyon National Park officials described this as the most devastating flash flood in the park's recent memory. When asked if anyone anticipated such a severe flash flood, considering that over 5 inches of rain fell in a 48-hour period, CBS News spokesperson Elizabeth Peace stated that they do not have access to the weather service.

Eighty-two people were evacuated from the canyon, some via helicopter, as the water levels began to surge. Many, like Steve Kramer, attributed their awareness of the impending disaster to the pounding rain and the deteriorating condition of the canyon sides. The flash floods also inflicted severe damage on the park's primary water pipeline, leaving the affected area with only approximately two weeks' worth of water remaining as the region enters the peak wildfire season, according to officials.