• Alberta clipper reinforces lake-effect snow as heavy rain targets southern California into the New Year

    A surge of Arctic air, reinforced lake-effect snowfall, and an atmospheric river are forecast to affect large portions of the United States from December 31, 2025, into January 2, 2026. Heavy snow is expected downwind of the Great Lakes and across parts of the Northeast, while southern California faces a flash flood risk as an atmospheric river moves onshore around New Year’s Day.

  • Winter Storm Ezra – Multi-hazard winter storm forecast to bring blizzard conditions and significant icing to Upper Midwest, Great Lakes and Northeast

    Winter Storm Ezra is forecast to bring severe winter weather across large parts of the United States from Sunday through Tuesday, December 28–30, 2025, as it moves from the Great Lakes into southern Canada. Heavy snow, blizzard conditions, and hazardous icing are forecast across the Upper Midwest, Great Lakes, and interior Northeast. Snowfall totals of over 30 cm (1 foot) are expected in parts of Michigan’s Upper Peninsula, while ice accumulations of up to 13 mm (0.5 inches) are forecast across interior New England through Tuesday.