A cold weather advisory has been issued across the Chicago area as an Arctic blast soon moves into the region, bringing dangerous wind chills that could pose a threat for some.
Climate Compass on MSN
Why some storms turn into tornadoes
The Supercell Foundation Not all thunderstorms can produce tornadoes - only about 30% of supercell thunderstorms actually ...
Wednesday marks four years since the tornado that tore through an Amazon facility in Edwardsville and killed six people.
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