The Illinois Department of Transportation is warning the public that a major winter storm with the potential for double-digit snowfall totals in the central and southern regions of the state will begin late Friday afternoon and extends into Saturday, impacting travel heading into the weekend. To prepare, IDOT has been pretreating roads and bridges susceptible to icing, with plowing operations likely to being later today and through the weekend. If possible, avoid driving during the storm. The heavier the traffic, the more challenging it is for snow plows to clear roads. If you encounter a plow during your travels, please slow down, increase your driving distance and remain patient. Do not crowd the plow. For regular updates on statewide road conditions, visit GettingAroundIllinois.com. You can also follow IDOT on Facebook and Twitter.