U.S. “bomb cyclone” disrupts Christmas A dangerously cold Arctic air mass is set to grip the U.S. over the festive holiday period, upending travel plans for millions of people -30°C -20°C -10°C 0°C 10°C 20°C -20°F 10°F 0°F 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 10°C 23°C -30°C -12°C -7°C 4°C 10°C WA OR NV CA MT ID WY UT CO AZ NM ND SD NE KS OK TX MN WI IA IL MO AR LA MI IN OH KY TN MS AL GA ME VT NH NY MA CT RI PA NJ WV MD DE VA NC SC FL Great Lakes Dec 24 Dec 25 Dec 26 Wind chill will make some temperatures feel like -40°C, able to cause frostbite in minutes Sources: Reuters, BBC, CNN, NOAA Pictures: NOAA, Newscom © GRAPHIC NEWS