1. Grand Canyon turns into sea of clouds

    Grand Canyon turns into sea of clouds

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  2. Dramatic timelapse shows massive thunderstorm rolling through NYC

    Dramatic timelapse shows massive thunderstorm rolling through NYC

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  3. Extreme Arctic winds cause Chicago River to literally freeze over

    Extreme Arctic winds cause Chicago River to literally freeze over

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  4. Time lapse: Stunning Supercell in Wellsville, Kansas

    Time lapse: Stunning Supercell in Wellsville, Kansas

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