Overview
- Guidance from national forecast centers points to the coldest push arriving Sunday into Monday, Nov. 9–10, as an arctic front drops south through the central and eastern U.S.
- Temperatures are projected to run roughly 10–20 degrees below average for more than 200 million people, with highs falling fast across the Great Lakes, Ohio Valley and Northeast.
- Lake-effect snow is expected to develop downwind of the Great Lakes, with additional chances for light to moderate snow in parts of the Upper Midwest and interior Northeast.
- Parts of the Southeast could see the first frost or freeze of the season, threatening sensitive vegetation in areas of Mississippi, Georgia and potentially northern Florida.
- Milder air is expected to return by midweek after the quick cold shot, even as the West remains unusually warm under a ridge with readings about 10–15 degrees above normal.