Meteorologists blame a stretched polar vortex, moisture, lack of sea ice for dangerous winter blast

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States

Polar Vortex Will Help Create Nightmare Winter Weather Across 30 States, Including Parts of the South

"Potentially hundreds of thousands of people may go without electricity and heat for days, one meteorologist said
El Adelantado de Segovia

The National Weather Service has issued a warning about a polar vortex that is cooling the United States and reactivating winter risks east of the Mississippi River

The United States is facing a storm unlike any seen in a long time. The National Weather Service has confirmed a blast of Arctic air that will pass through

Is climate change weakening the polar vortex?

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all scientists agree.