Overview
- The National Weather Service has posted widespread winter storm warnings and advisories from the Midwest to the Northeast, with some locations forecast to receive up to about 20 inches of snow and gusts near 40–60 mph depending on the region.
- Snow squall warnings in the Chicago area Wednesday morning produced near-whiteout conditions and rapidly deteriorating travel, with the worst of the burst shifting toward northwest Indiana by midday.
- Across Michigan, intense lake-effect bands and blowing snow prompted warnings and advisories, with localized totals of 6–8 inches along portions of Lakes Superior and Michigan and wind chills falling below zero into Thursday.
- Central and upstate New York face a rain-to-snow changeover followed by lake effect, with advisories calling for 4–10 inches in parts of Oswego, Jefferson and Lewis counties and subzero wind chills Thursday and Thursday night.
- In the UK, the Met Office issued a yellow warning for heavy, persistent rain over parts of southern England on Thursday, with localized flooding risk and a Met Office map showing a peak over Coventry and Warwickshire around 6–7 p.m.; reports of late-January UK snow are based on model guidance and remain unconfirmed.