Las Vegas Sun

April 26, 2024

U.S. Postal Service letter carrier Jamie Jasmon struggles through snow and below zero temperatures while delivering the mail Monday, Jan. 6, 2014, in Springfield, Ill. A whirlpool of frigid, dense air known as a "polar vortex" descended into much of the U.S. and plunged temperatures to record lows.

Seth Perlman / AP

U.S. Postal Service letter carrier Jamie Jasmon struggles through snow and below zero temperatures while delivering the mail Monday, Jan. 6, 2014, in Springfield, Ill. A whirlpool of frigid, dense air known as a "polar vortex" descended into much of the U.S. and plunged temperatures to record lows.