CTP is forecasting the kitchen sink for the Harrisburg area tomorrow night into Tuesday am:
Monday Night
A chance of freezing rain and sleet after 1am. Increasing clouds, with a low around 27. Southeast wind 7 to 10 mph. Chance of precipitation is 50%. New sleet accumulation of less than a half inch possible.
Tuesday
Snow showers and freezing rain, possibly mixed with sleet before 10am, then rain or freezing rain between 10am and 1pm, then rain showers after 1pm. High near 40. Southeast wind 6 to 9 mph. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.