A slow moving winter system is setting up a dangerous weekend.

AccuWeather meteorologists are actively tracking a major winter storm system expected to begin impacting the United States Friday and persist through Sunday. Forecasts show effects spreading across more than two dozen states, potentially placing up to 150 million people within reach. The concern is not just snow, but a prolonged window of freezing rain and ice caused by warm moisture riding over stubborn Arctic air. When storms linger like this, disruption compounds faster than forecasts alone can capture.



