Update 11:30 p.m.: The National Weather Service is predicting an 80 percent chance of snow Monday night and a 50 percent chance on Tuesday.
It has not predicted how much snow will fall during that time.
AccuWeather, however, is forecasting 2 to 4 inches of snow Monday for York County.
Update: 3:40 p.m. The winter weather advisory ended at 2 p.m. Saturday, according to the NAtional Weather Service site. Now, though, the NWS predicts "moderate snowfall" Monday night.
Update 1:30 p.m.: The winter weather advisory is now in effect only until 2 p.m., according to the National Weather Service site.
Original:The National Weather Service has extended until 4 p.m. a winter weather advisory that includes York County.
The advisory, which covers much of central Pa., warns of 2 to 4 inches of snow accumulation, with gusting winds to go along with it.
Visibility will be low at times, and drivers need to be wary of the drifting snow that can cover and then re-cover roads, the NWS says.
The snow will taper off in the afternoon, and the high temperature for the day will hit around 32, according to the NWS site.
Sunday and Monday will have similar temperatures and some sun, but more snow could be in the cards for Monday night, the NWS says.