Event narrative (NOAA)
Eleven hikers and tourists were drowned by a flash flood in a narrow slot canyon 5 miles southeast of Page. A severe thunderstorm 3 to 5 miles upstream produced very heavy rain causing a 10-30 foot wall of water to crash down Antelope Canyon. In the area of the flood fatalities the depth and width of Antelope Canyon varies from about 20 feet across and 30 feet deep to points where it is 200 feet deep but only two (2) feet across. It is a popular site for hiking and photography where access is via rope ladders controlled by Navajo Nation representatives. The eleven who died and a tour guide were warned not to enter the canyon because of the flood potential from an approaching thunderstorm. The tour guide alone survived after being carried several miles downstream by the flood.
Other notable flash flood events in Arizona
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.