People heading to the USA this Christmas and New Year face disruption as bad weather brought travel chaos across the pond. Thousands of flights were cancelled and homeless shelters are overflowing amid one of the most treacherous holiday travel seasons the US has seen in decades.
Some places have experienced temperatures plummeting 50 degrees Fahrenheit (10C) within a matter of hours as forecasters warn of an impending "bomb cyclone" that could make conditions even worse before Christmas. The frigid air was moving through the central United States to the east, with windchill advisories affecting about 135 million people over the coming days, weather service meteorologist Ashton Robinson Cook said on Thursday.
Places like Des Moines, Iowa, will feel like -38C, making it possible to suffer frostbite in less than five minutes.