A massive winter weather event impacting over 200 million people across 33-35 U.S. states in late January 2026, featuring heavy snow, freezing rain, sleet, ice, and brutally cold temperatures from the Southwest to the Northeast.

Also known as Winter Storm Fern in some forecasts, this historic storm prompted emergency declarations and winter storm warnings due to its expansive 2,000-mile track and potential life-threatening conditions.