Much of the Lower 48 and Western Canada is kicking off the week with unseasonably warm weather, but a midweek storm system will flip the pattern—ushering in colder air and a round of wintry weather from Central to Eastern Canada, the Upper Midwest into the Great Lakes and Appalachians. While major snow looks limited, areas downwind of the Great Lakes could see more persistent lake-effect snow as the pattern turns colder.
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January is closing out with no shortage of winter weather. Frigid temperatures will dominate the eastern U.S. for the rest of the week as another round of arctic air spills southward starting Friday. The cold could break more records as far south as Florida. Meanwhile, forecasters are closely tracking a potentially significant East Coast winter storm this weekend that could bring heavy snow, strong winds, and coastal flooding from the Carolinas to New England. Out West, a soggy pattern continues in the Pacific Northwest, with rounds of rain and mountain snow.