@abcnews: The governor of Iowa sent helicopters to a small town to evacuate people from flooded homes Saturday, the result of weeks of rain. Drone video posted by the local sheriff showed no streets, just roofs and the tops of trees above water. Sirens blared in Rock Valley, Iowa, population 4,200, where people in hundreds of homes were told to get out as the Rock River could no longer take rain that has slammed the region. The city lacked running water because wells were unusable.