VIDEO: A man was left stranded on a tree branch at the Salt River in the middle of a chaotic monsoon storm that hit the Phoenix area Monday. Firefighters responded to reports of a man who was standing on a tree branch in the river bottom near Central Avenue south of Interstate 17 around 6 p.m., the Phoenix Fire Department said. The man said he was camping in the area when the water began to move very fast. "From 2 inches of water that I usually walk through, just that little campground I had, or campsite, went up to 8 foot (sic) that fast," said Jeff. "Out of nowhere, man, it just rose."