A Winter Storm Warning remains in effect until tonight for the following counties, Adair, Adams, Audubon, Cass, Guthrie, Ringgold, Taylor, Union, Harrison, Shelby, Pottawattamie, Mills, Montgomery, Fremont and Page. A Winter Weather Advisory remains in effect until tonight for the following counties in Iowa, Appanoose, Boone, Clarke, Dallas, Decatur, Jasper, Lucas, Madison, Marion, Monroe, Polk, Story, Warren, Wayne, Monona, Carroll, Crawford and Greene. Snow has accumulated to 4-6 inches across the Omaha metro area. As the snow moves east, amounts will generally be 2-4 inches across the southern half of the state with the northern half recieving little if any snow, especially north of US Hwy 20, where only flurries may fall. Roads are completely snow covered in the SW part of the state, with partly covered or wet roads in West central, central and south central Iowa.