CNN —A large winter storm system slammed into the western US over the weekend, blanketing mountain areas with heavy snow before taking aim at the South, where it’s expected to bring severe weather, with strong winds, hail and tornadoes possible. More than 15 million people in 14 states are under some sort of a winter weather alert as the powerful storm moves across the county. A multi-day severe storm threat begins Monday for parts of the South and southern central US. A slight threat for severe weather has been issued for parts of western and central Kansas and Oklahoma into northwestern Texas. Duluth, Minnesota, could also see 6 inches of snow and will be under a winter storm watch starting Tuesday morning.

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