Wind Chill that is.
Astonishing intensity of cold smashing through Canada and Northeast USA right now.
— Scott Duncan (@ScottDuncanWX) February 4, 2023
Mt. Washington in New Hampshire just recorded a windchill value of -109°F (-78°C), which sets the lowest windchill value ever observed in the USA (including Alaska). pic.twitter.com/EicPSYZ4AN
There are researchers in Antarctica right now who are laughing their butts off.