Iowa City, Iowa -- Increased inflow due to rains occurring over the past 24 hours into Coralville Lake from its 3,084-square-mile watershed on the Iowa River continues to raise pool levels. In response to rainfall occurring over the Iowa River watershed and subsequent increased inflows into Coralville Lake; the National Weather Service’s 24-hour precipitation forecast; and the local, state and federally approved operating procedures, the U.S. Army Corps of Engineers is increasing outflows from Coralville Lake.