A winter weather advisory was expected to end for parts of Siouxland at noon. A wintry mix of sleet, rain and freezing rain created slick conditions for some parts of the tri-state area. A semi rollover on Interstate 29 near Sergeant Bluff his morning backed up traffic in the southbound lane. DOT traffic cameras show the road is open now. A few schools closed down today including Whiting and the Omaha Nation Public Schools in Ponca. UnityPoint Health and Sanford Health have abruptly halted plans