The strong cold front ushering in one of the worst December cold outbreaks in modern records finally cleared most of the East Coast, completing a 2-day trek that started with an extreme 40°F drop in 30min in Cheyenne, WY.

Here's the front viewed from hourly temperature change: pic.twitter.com/xz2gFvQDUJ

— Tomer Burg (@burgwx) December 24, 2022