Amy Gilmour, a volunteer from San Antonio, Texas, walks past a pile of debris, which included parts of destroyed homes, that amassed when the Blanco River flooded during the Memorial Day weekend rains in Wimberley, Texas May 26, 2015. Torrential rains have killed at least 10 people in Texas and Oklahoma, including three in Houston where floods turned streets into rivers and led to about 1,000 calls for help in the fourth-most populous U.S. city, officials said on Tuesday. REUTERS/Tamir Kalifa