The Grand Canyon's Flash Floods FLAGSTAFF, AZ (knau) - A summer monsoon in the Grand Canyon can mean extreme danger for those trapped within its walls. Thrashing water that arrives without warning can consume everything and anything in its path. Here, commentator Scott Thybony shares his first flash flood experience and his fortunate outcome.

Scott Thybony is a Flagstaff based writer. His Grand Canyon commentaries are funded by the Grand Canyon Association, supporting education and scientific research for Grand Canyon National Park since 1932. On the web at Grand Canyon dot org. © Copyright 2009, knau