Winter weather Travelers check for cancelled flights at Logan International Airport in Boston, Massachusetts, on December 23, 2022. - A historic and brutal winter storm put some 240 million Americans under severe weather warnings Friday as the US faced holiday travel chaos, with thousands of flights cancelled and major highways closed. (Photo by Joseph Prezioso / AFP) (Photo by JOSEPH PREZIOSO/AFP via Getty Images) (JOSEPH PREZIOSO/AFP via Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 23: A man walks along Lake Michigan at sunrise as temperatures hover about -6 degrees on December 22, 2022 in Chicago, Illinois. Sub-zero temperatures are expected to grip the city for the next couple of days with wind chill temperature dipping as low as -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 23: A jogger runs along Lake Michigan at sunrise as temperatures hover about -8 degrees on December 22, 2022 in Chicago, Illinois. Sub-zero temperatures are expected to grip the city for the next couple of days with wind chill temperature dipping as low as -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 23: Vapor rises from buildings as temperatures hover about -6 degrees on December 22, 2022 in Chicago, Illinois. Sub-zero temperatures are expected to grip the city for the next couple of days with wind chill temperature dipping as low as -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 23: A man walks his dog along the lakefront near downtown as temperatures hover about -6 degrees on December 22, 2022 in Chicago, Illinois. Sub-zero temperatures are expected to grip the city for the next couple of days with wind chill temperature dipping as low as -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 23: Vapor rises from Lake Michigan near downtown as temperatures hover about -6 degrees on December 22, 2022 in Chicago, Illinois. Sub-zero temperatures are expected to grip the city for the next couple of days with wind chill temperature dipping as low as -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 23: Vapor rises from Lake Michigan at Navy Pier at sunrise as temperatures hover about -8 degrees on December 22, 2022 in Chicago, Illinois. Sub-zero temperatures are expected to grip the city for the next couple of days with wind chill temperature dipping as low as -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 23: A man walks along Lake Michigan at sunrise as temperatures hover about -8 degrees on December 22, 2022 in Chicago, Illinois. Sub-zero temperatures are expected to grip the city for the next couple of days with wind chill temperature dipping as low as -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Pedestrians navigate a snow-covered sidewalk as temperatures hang in the single-digits on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on a large section of the county in front of the holidays. Strong winds are expected to combine with sub-zero temperatures tomorrow driving the wind chill in Chicago to around -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather Travelers rest inside the international terminal at San Francisco International Airport (SFO) in San Francisco, California, US, on Thursday, Dec. 22, 2022. An estimated 112.7 million people will travel 50 miles or more from Dec. 23 to Jan. 2, up by 3.6 million from last year and getting close to pre-pandemic levels, according to AAA, a provider of travel insurance. Photographer: David Paul Morris/Bloomberg via Getty Images (David Paul Morris/Bloomberg via Getty Images)
Winter weather Los Angeles, CA - December 22: Holiday traffic crawls through LAX as winter weather hampers travel around the country on Thursday, Dec. 22, 2022 in Los Angeles, CA. (Brian van der Brug / Los Angeles Times via Getty Images) (Brian van der Brug/Los Angeles Times via Getty Imag)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Travelers arrive for flights at O'Hare International Airport on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on holiday travel during one of the busiest days of the year for airlines. As of 8:00 AM more than 400 flights out O'Hare had been cancelled. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Travelers arrive for flights at O'Hare International Airport on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on holiday travel during one of the busiest days of the year for airlines. As of 8:00 AM more than 400 flights out O'Hare had been cancelled. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Commuters wait for an L train during a lighter-than-ussual evening rush hour as temperatures hang in the single-digits on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on a large section of the county in front of the holidays. Strong winds are expected to combine with sub-zero temperatures tomorrow driving the wind chill in Chicago to around -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather A man clears a sidewalk during a winter storm ahead of the Christmas Holiday outside the Union Station, in Chicago on December 22, 2022. - More than 2,200 flights were canceled across the United States by Thursday afternoon as a massive winter storm named Elliot upended holiday travel plans with a triple threat of heavy snow, howling winds and bitter cold (Photo by KAMIL KRZACZYNSKI / AFP) (Photo by KAMIL KRZACZYNSKI/AFP via Getty Images) (KAMIL KRZACZYNSKI/AFP via Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Travelers arrive for flights at O'Hare International Airport on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on holiday travel during one of the busiest days of the year for airlines. As of 8:00 AM more than 400 flights out O'Hare had been cancelled. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Commuters wait for a bus as temperatures hang in the single-digits on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on a large section of the county in front of the holidays. Strong winds are expected to combine with sub-zero temperatures tomorrow driving the wind chill in Chicago to around -40 degrees. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Travelers waits for flights at O'Hare International Airport on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on holiday travel during one of the busiest days of the year for airlines. As of 8:00 AM more than 400 flights out O'Hare had been canceled. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Travelers check in for flights at O'Hare International Airport on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on holiday travel during one of the busiest days of the year for airlines. As of 8:00 AM more than 400 flights out O'Hare had been cancelled. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather CHICAGO, ILLINOIS - DECEMBER 22: Travelers check the status of their flights at O'Hare International Airport on December 22, 2022 in Chicago, Illinois. A winter weather system bringing snow, high winds, and sub-zero temperatures has wreaked havoc on holiday travel during one of the busiest days of the year for airlines. As of 8:00 AM more than 400 flights out O'Hare had been cancelled. (Photo by Scott Olson/Getty Images) (Scott Olson/Getty Images)
Winter weather Parkway West in Pittsburgh was snow covered Friday morning (WPXI)
