Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar vortex affects the weather.

State Climatologist Jay Grymes said there could be lows of 20 degrees across the state between Monday and Wednesday and the National Weather Service (NWS) has said Baton Rouge could see its first snowfall in seven years. Newsweek has contacted the Louisiana Governor's Office of Homeland Security and Emergency Preparedness for comment.

It's looking very likely that very cold air will drop into Southeast Louisiana and New Orleans next week along with chances of snow or a wintry mix. A Winter Storm Watch is in effect for late Monday and Tuesday.

Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

Tens of millions of people were bracing Sunday for a massive winter storm forecast to bring the heaviest snowfall and coldest temperatures in over a decade to parts of the country.

The Polar Vortex Readies to Dump Snow on Texas and ... with the heaviest amounts likely in parts of Arkansas, Louisiana, Mississippi, Oklahoma and Texas, according to the National Weather Service.

DES MOINES, Iowa (AP) — The plunging polar vortex brought subfreezing temperatures Tuesday to some of the southernmost points of the U.S., threatening to dump snow on parts of Texas and Oklahoma ...

The polar vortex of ultra-cold air usually spins around ... More than 50,000 customers were without power on Wednesday in Indiana, Kentucky, Louisiana, Virginia and West Virginia, according ...

Very cold arctic air will interact with several systems to bring chances of freezing rain, sleet, and snow

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

A major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to nearly every American east of the Rockies.