Periods of Light Snow in the Northern Tier; Air Stagnation in the Northwest; Canadian cold fronts will bring areas of light snow to the northern Tier states into this week. Mid-week, a new surge of Arctic Air will produce much below normal temperatures across the Central U.S.. High pressure and cold temperatures will continue to trap pollution near the surface and produce widespread air stagnation issues across the interior Northwest. Stay weather aware at: bit.ly/2P4Z8eS

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