NOTE: This post was updated at 5:15 p.m. with latest information and snowfall maps from National Weather Service meteorologists about what has been a hard-to-forecast storm. What had been a winter storm advisory for southcentral PA at the start of Monday is now a full-blown winter storm warning for most of us, and the National Weather Service says the most heavily affected counties in our region will be Cumberland, Dauphin, Franklin, Lebanon and Perry.