Most of the USA is currently freezing. Since the weekend, a polar cold front has swept across the country, reaching as far as the Gulf of Mexico. This intense cold won't have the same impact on Europe ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...