Even though Maricopa County is in a desert, flooding is a very real threat. The intense rains of summer monsoon storms bring flash flooding you usually dry washes.
Six inches of water can knock you off your feet. Two feet of water can float away your car.
Many of the parks and recreation areas you enjoy are also basins or channels. When fulfilling their flood control purpose, they are dangerous to play in.
Stay out of flooded areas.
Flood Insurance Information