Arizona · Slot Canyon. In September of this year eight people drowned in a slot canyon flood. . Nature Geoscience. flash flood; the next day's speeding ticket for Marietta outside. Fluvial erosion of physically modeled abrasion dominated slot canyons. The entrance of Upper Antelope Canyon, a slot canyon, carved out of Navajo sandstone by countless flash floods. Flash flood from cloudburst 15 miles away fills narrow Antelope Canyon, Ariz, with wall of water 11 feet high, trapping 12 hikers;. Rapid formation of a modern bedrock canyon by a single flood event. Flash floods are rare. Outburst floods in mountainous landscapes traverse complex topography and interact with the channel and valley walls, producing intense flow. Find typical and current weather conditions in Zion, as well as the flow rate of the Virgin River and the flash flood potential forecast. Only have a few hours and want a diverse hike with beautiful views, ledge traverses and time in a slot canyon? Flash Flood Potential. Flash flood is a common type of disaster in mountainous area, Flash flood canyon is the result of the very last flood event that poured through the Kasei. Two men were found dead and another was rescued after bad weather triggered a flash flood in Buckskin Gulch, a narrow gorge.