Winter has entrenched itself in PA through the later part of this past week, and through the weekend and into next week will only look to strengthen its icy cold grip. Saturday will see the first real chance for snow in the southern and eastern portions of the commonwealth via a coastal system. Accumulations will be heaviest around Philadelphia, with 3-6 inches most likely, but areas from Harrisburg to Scranton could also see up to 3, depending on the exact track of the storm. From Sunday onward, sporadic lake effect snow bands will be affecting the NW counties, with a gradual accumulation of 4-6 inches possible in Erie, with temperatures remaining cold throughout PA. Tuesday will see a clipper system move through the north of PA. Snow accumulations will be light, but truly artic air will follow in its wake on Wednesday, with much of the region failing to get higher than the teens.