Overview
- Nearly 70 million people were under cold weather alerts Monday from the Midwest to the Gulf Coast, with highs running 10 to 20 degrees below average across the eastern third of the country.
- Morning wind chills ranged from minus 9 in Chicago to 7 in New York City and 1 in Washington, with 30–40 mph gusts producing blowing and drifting snow in open areas.
- The National Weather Service maintained Lake Effect Snow Warnings and Winter/Cold Weather Advisories for northern and western areas, with 1–2 inches of additional snow and localized 3–4 inch totals in persistent bands.
- Transportation agencies reported slick roads and reduced speeds, and more than 1,000 U.S. flights were delayed and over 100 canceled Sunday as the storm and cold disrupted travel.
- Forecasters expect temperatures to moderate into the 30s and 40s by midweek with rain, then a sharp front Thursday could flip wet surfaces to ice quickly as colder air returns, with lake-effect snow and chill resuming Friday.