As a winter storm approaches, winter weather advisories and road restrictions have been announced across Pennsylvania. The Pittsburgh area is bracing for its first significant snowfall of the season, with snowfall rates potentially reaching up to an inch per hour during the Tuesday morning commute. Areas in western Pennsylvania could see totals of 4 to 5 inches, while central and eastern regions, including Philadelphia and Bucks County, are preparing for a wintry mix and varying snow accumulations. Officials are urging patience and caution as residents prepare for travel disruptions and delays due to the inclement weather.