The time-lapse photos are from NASA's Aqua and Terra satellites.
According to NASA, a polar vortex is a wintertime feature of the stratosphere.
The vortex consists of winds spinning counterclockwise above the pole, the vortex varies in strength because of interactions with "planetary waves and global-scale disturbances that rise from the troposphere."
"The polar vortex acts like a big flywheel," Walter Robinson, a UI professor of atmospheric sciences, told NASA.
Meteorologists at the Weather Channel say the cold front, displaying "life-threatening" temperatures in some locations, is the coldest front they've seen in decades.
In Cincinnati, we are experiencing the coldest temps since 1996. The Tri-State is under a Wind Chill Warning until 5 p.m. Tuesday.
Copyright 2014 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Homer Bailey pitched six scoreless innings at friendly Wrigley Field for his first win of the season and Jay Bruce homered and…
A liver. For him. Finally. A groggy Don Van Zant glanced at the clock when he picked up the phone Oct. 10, 2012. His life was saved as others…
What started out as a traffic stop turned into a serious crash that closed a part of Glendale-Milford Road early Sunday morning.
Cincinnati police released the identity of the man they found shot to death in the 3100 block of Reading Road Sunday.
At the helm of his namesake eatery Jimmy G's, Gibson entered his profession for the love of food and found a foodie following in the Tri-State.
Searchers once again combed through a tree-covered creek bed in eastern Indiana on Saturday trying to find the clues they need to answer the…
Is it just us, or are beards (and other forms of facial hair) making a comeback in the Tri-State? WCPO decided to explore the issue.…
In this week's "Where We Pray," learn about a local church that combines the mission and resources of a large congregation with…
Many a parent and teacher have tried to bring science alive for children. Writer Mary Kay Carson aims to bring lessons to life by injecting…
Church leaders came together in one Butler County community Saturday night to pray for peace after a recent string of violence in the area.