052819 404 Water releases from Gavins Point Dam will be increased today and Wednesday because of heavy rainfall over a large portion of the Missouri River basin above Sioux City. Rainfall in Nebraska, South Dakota and central North Dakota for the past seven days has been 200 percent to 600 percent of normal, leading to higher inflows to South Dakota reservoirs. Increasing Gavins Point releases will allow more water to pass through the system and slow the rise at reservoirs upriver from Gavins