Erie: 2-5″ near the coast. 3-6″ in areas further south outside of the city like Edinboro
Oil City: 3-6″
Butler: 2-4″
Pittsburgh:1-3″ dahntahn, 2-4″in the burbs to the north.
Uniontown: Maybe a dusting to an inch, but mainly sleet/rain mix.
Main shield of snow and sleet should start sometime between 2 and 6PM. Pittsburgh and south could see heavier precipitation at times, especially late tonight and into the overnight hours. Locally higher amounts are possible, especially in higher elevations. Watch for black ice and just drive carefully. Be safe!