Extreme temperature drops in Rockies, Plains & Midwest, with temps in the -20s to -30s on the Canadian border. The airport in Dillon, Montana fell from 27 to 1 degree in 3 min, while the AccuWeather RealFeel® dropped from 31 to -38 in 5 min! https://t.co/UUWEEUwZp1 pic.twitter.com/fu8qWAVmPh

— Breaking Weather by AccuWeather (@breakingweather) December 21, 2022