Volunteers in a boat pass cars and a stalled tractor trailer as they head out to look for people needing help after flood waters from Hurricane Harvey inundated areas around Katy, Texas. Hurricane Harvey slammed into the Texas coast some 175 miles (280 kilometers) from Houston, but the nation's fourth-largest city has never needed a direct strike from a catastrophic storm to flood. Rain from the hurricane is expected to fall for days compounding the problem for much of the state.