See how people are coping with the scary chill of the polar vortex
Parts of the Midwest are experiencing the coldest temperatures in 20 years this week as the polar vortex takes hold. On Wednesday morning, it was -22 degrees in Chicago, with a wind chill of -49, according to CNN. In northern Minnesota, wind chills dropped to -65. Flights are being delayed and cancelled. The USPS has partially halted service. In some places, it's possible to get frostbite after only a few minutes of skin exposure. On Twitter, people are sharing the polar vortex's wild effects in their own hometowns. There's indoor ice, boiling water vaporizing into the air, innovative winter-wear layering techniques, and (crucially) bundled-up dogs. Tweet may have been deleted In Chicago, commuter rail tracks were set on fire to keep them operational in the frigid temperatures. Tweet may have been deleted Things are getting weird out there. Tweet may have been deletedSEE ALSO: The polar vortex will return, this time with the coldest temps of the year Tweet may have been deleted  An extremely light morning rush hour. Credit: Scott Olson / Getty Images Tweet may have been deleted  The Chicago River is partially frozen. Credit: Scott Olson / Getty Images Tweet may have been deleted  Out for a walk. Credit: Stephen Maturen / AFP /Getty Images Tweet may have been deleted Tweet may have been deleted If your region is experiencing these temperatures, minimize your time outside as much as possible. If you need to go outside to do the boiling water challenge, fine, but head back inside ASAP. And bring your pets with you! Featured Video For You The 18th annual No Pants Subway Ride streaks across the globe |