The Northern Lights forecast has been upgraded to “severe” for the US – when to see the Northern Lights this evening

The Aurora Borealis, also known as the Northern Lights, was visible in the northern half of the country … (+) USA this Thursday and Friday. (Photo by IRENE STACHON/Lehtikuva/AFP via Getty Images) Lehtikuva/AFP via Getty Images Update: Added comments from…