For the remainder of Friday into Saturday, heavy rain will maintain the threat of flooding in portions of the mid-South and lower Midwest.  Meanwhile, the threat of severe thunderstorms—featuring high winds, large hail, and isolated tornadoes— will peak later today across the Mississippi Delta and environs.  Farther north, a band of wet snow will develop later Friday or Friday night in the Great Lakes region, generally from northern Illinois to northern Lower Michigan.  During the weekend, disorganized rain and snow showers will affect parts of the West, while rain should linger across the South. 

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