...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY... * WHAT...Heavy snow. Additional snow accumulations of one to two inches. Winds gusting as high as 40 mph. * WHERE...Portions of north central and northwest Illinois and east central, northeast, and southeast Iowa. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. In Iowa, the latest road conditions are available at 511ia.org or by calling 511. In Illinois, the latest road conditions are available at gettingaroundillinois.com. Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. &&