A major snowstorm is poised to sweep across the United States, impacting regions from Texas to the Northeast. Forecasters predict a significant accumulation of snow and ice as a cold air mass descends upon the country. AccuWeather meteorologists anticipate several inches of snow in the Plains region, while even California could face icy conditions. The National Weather Service has issued widespread freeze and cold-weather warnings, urging residents to prepare for the impending inclement weather.