Overview
- National Weather Service forecasts call for lake-effect and lake-enhanced snow into Tuesday downwind of the Great Lakes, with gusts near 30 mph and localized totals up to 12–18 inches in parts of Indiana, Wisconsin, Michigan and West Virginia.
- Freeze watches and warnings are posted for inland areas of the Southeast and Florida for Monday night into Tuesday, with widespread lows in the 20s expected away from coasts.
- Snow squalls are set to create rapid drops in visibility and slick roads in classic snowbelt corridors, while wind chills fall into the teens and low 20s for many Tuesday morning.
- More than 105 million people are under advisories, watches or warnings, and record or near-record lows are possible in Southern cities including Birmingham, Tupelo, Knoxville, Memphis and Nashville.
- Officials report readiness measures such as New York’s potential Code Blue shelter activations and plow deployments, and South Florida faces a drop from weekend 80s to 30s–40s by Tuesday.