A winter weather advisory was allowed to expire at 10 a.m. New Year’s Day for Washington County and surrounding areas in Western Pennsylvania. Additional snowfall of 1-3 inches is expected Thursday for total snowfall accumulations of 3-5 inches. The Weather Service warned that bridges and overpasses could still be slick and hazardous. The speed limit was reduced from 55 mph to 45 on interstates 79 and 70 in Washington, Greene and Westmoreland counties until about 7 a.m. Crews are treating roads with salt, but motorists are urged to avoid unnecessary travel and use caution.