The Flood Watch affects a wide range of communities and natural landmarks in Northern Arizona, including the Grand Canyon and Mogollon Rim. Heavy rainfall could lead to flash flooding, especially in low-lying areas, washes, and near rivers. Travelers and residents in these areas should be prepared for potential road closures and hazardous conditions. Those engaging in outdoor activities, such as hiking or camping, should exercise extreme caution as sudden water surges can occur without warning.