Winter Storm Blair, impacting over 62 million, brings heavy snow and ice from the Plains to the East Coast. Blizzard warnings in Kansas and Missouri forecast up to 14 inches of snow, disrupting travel and causing states like Virginia and Arkansas to declare emergencies. Forecasters warn of extreme cold hitting the eastern U.S. next week, with temperatures plunging below normal. Businesses and schools close, and the National Weather Service advises against travel due to hazardous conditions. Widespread power outages are anticipated as the storm progresses.