Overview
- Weather agencies issued snow squall warnings and cold advisories from the Great Lakes to the Northeast and parts of Ontario, citing sudden whiteouts, 35–50 mph gusts and wind chills down to 20 below.
- Travel remained hazardous Monday into Tuesday, with law enforcement urging drivers to stay off roads as a roughly 100‑vehicle pileup and multiple closures were reported in Michigan.
- Light to moderate snow returns Tuesday night into Wednesday, including 1–3 inches in southeastern Wisconsin, around 1–2 inches in parts of Ohio and New England, and 3–5 inches in parts of Michigan, likely affecting commutes.
- Forecasters expect a prolonged Arctic outbreak late week, with wind chills well below zero across the Great Lakes and Northeast and values near or below minus 30 in portions of the Upper Midwest.
- A late‑weekend winter system remains track‑dependent, with the potential for snow or ice from the Deep South into the Mid‑Atlantic and a possible northward shift that could change who sees impacts.