Snow and blowing snow producing intermittent white out conditions expected. Total snow accumulations of 3 to 6 inches, with most of the snow occurring this afternoon and evening. Rapidly deteriorating conditions with a period of snowfall rates over 1 inch per hour expected mid to late afternoon. Winds gusting as high as 50 mph expected. Wind chill values of 25 to 35 below zero expected. * WHERE...Portions of east central and northeast Illinois. * WHEN...From noon today to 6 AM CST Saturday. * IMPACTS...Falling or blowing snow may result in white out conditions with zero visibility at times, making travel extremely difficult. Power outages will also be possible as a result of strong wind gusts to 50 mph. Roads will likely quickly become ice covered as temperatures rapidly fall Thursday this afternoon. * ADDITIONAL DETAILS...Dangerously cold wind chills as low as 25 to 35 below zero tonight through Friday night can cause frostbite on exposed skin in as little as 20 minutes. 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 Illinois can be obtained on the internet at www.gettingaroundillinois.com.