2019 polar vortex: Here's how the brutal cold impacted the U.S.
NBC News Clone summarizes the latest on: Live Blog 2019 Winter Weather Storm Tracker N964531 - Breaking News | NBC News Clone. This article is rewritten and presented in a simplified tone for a better reader experience.
Track the polar vortex live and find the latest news on wind chill, the coldest temperatures and more.
The polar vortex hitting the U.S. led severely cold temperatures that canceled flights, closed schools and left dangerous conditions around the country.
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