Western Pennsylvania is currently grappling with a stark transition from unseasonably warm weather to a sudden onset of snow and frigid temperatures, a phenomenon being called 'winter weather whiplash.' Just days before the official arrival of spring, residents have witnessed a dramatic shift from sunny skies and 70°F (21°C) to snow-covered streets. This abrupt change is attributed to a cold front colliding with the existing warm air mass, leading to a rapid temperature plunge and a switch from rain to snow.