Overview
- Snow squalls and gusts near 40 mph produced whiteout reports in the Chicago area this morning, with lake-effect snow persisting into Thursday and temperatures stuck in the 20s.
- Across Michigan, Winter Storm Warnings and Advisories call for 3 to 8 inches in multiple lake belts, including 6 to 8 inches in parts of the Upper Peninsula and a Thumb Watch for 5 to 7 inches.
- An advisory for Oswego, Jefferson and Lewis counties projects 5 to 10 inches east of Lake Ontario through Friday morning, with difficult Wednesday evening and Thursday morning commutes.
- Rain is changing to snow from the Midwest into the Northeast, with rapidly falling temperatures, gusty winds, and wind chills near or below zero expected into Friday as additional clippers follow.
- In a sharp regional contrast, Southern California faces prolonged Santa Ana winds with peak gusts up to 70 mph and unseasonably warm temperatures, posing travel risks for high-profile vehicles.