The departure of a strong low pressure system will lead aid the development of lake effect snow banding over northwestern regions of the Commonwealth; however, some of these bands can impact central regions. High winds will accompany the snow, and temperatures will drop to more seasonal levels as we enter Friday. Friday will feature colder than normal temperatures throughout the state with snow showers continuing in northwestern regions with partly cloudy skies prevailing in other regions. Temperatures will remain well below normal on Saturday with snow showers tapering; mostly cloudy skies will remain over the majority of the state. Temperatures will rebound somewhat on Sunday in the wake of a weak low pressure system approaching from the southwest, which will being rain to the Commonwealth on Monday. This will be the first of a multi-part system, as another wave will impact the region with rain on Tuesday.