...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST TUESDAY... * WHAT...Heavy snow. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 35 mph later tonight. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska and southeast South Dakota. * WHEN...Until 6 AM CST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.