A cold front is moving through Pittsburgh, bringing snow and icy conditions that are expected to create hazardous travel conditions. Meteorologist Ray Petelin forecasts a significant drop in temperatures overnight, leading to the accumulation of snow and ice on roads and sidewalks. This weather system affects the northeastern United States, with Pittsburgh experiencing the brunt of the wintry conditions. Drivers are urged to exercise caution due to the potential for black ice, and pedestrians should be careful on slippery sidewalks. Homeowners are advised to prevent frozen pipes by allowing faucets to drip and insulating outdoor pipes.