Winter 2019: Images from the polar vortex (19 images)

A polar vortex has put much of the Midwestern United States into a deep freeze this week, with temperatures rivaling the Arctic. Schools, businesses, roads and travel were brought to a standstill in many parts of the country, with residents warned to stay inside.

Canada geese sit on a frozen pond at the Saint Louis Zoo. Photo by Bill Greenblatt/UPI

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Visitors to Forest Park walk past a waterfall that has become covered in ice. Photo by Bill Greenblatt/UPI

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Skaters use a Forest Park pond to shoot pucks in St. Louis, Mo. Photo by Bill Greenblatt/UPI

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