Polar Vortex collapse set to send temperatures plunging in the US and Canada - The weather event could unleash extreme winter conditions and disrupt travel

Expert are warning of a polar vortex collapse in the next couple of weeks, plunging North America into freezing temperatures.The weather phenomenon will hit in mid-March and will affect the United States and Canada predominantly.

A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of Europe into a bitterly cold spell just days before the official arrival of spring.

Extreme weather is sweeping across the United States. Last week, the polar vortex peaked, bringing freezing temperatures to much of the country.

Following more wintry weather from storms this weekend in the Midwest and Northeast, warmth will build and expand over the central and eastern United States next week. However, Accuweather's Long-Range Team continues to monitor the pent-up polar vortex,

The National Oceanic and Atmospheric Administration (NOAA) explains that a polar vortex is a large area of low pressure and cold air currents which circulate around both of the Earth’s poles. It has a circular shape and is at it’s peak during the winter months.

Cobb and north Georgia are under a freeze warning from 9 p.m. Wednesday through 10 a.m. Thursday, according to the National Weather Service in Peachtree City. After some overnight rain, blustery weather conditions are persisting,