Northern Lights forecast: Where and when to view the stunning aurora borealis on Nov. 11-12 in US

Northern Lights forecast: Get ready for a spectacular aurora display on Tuesday and Wednesday nights. The Northern Lights are expected to be visible in at least 21 states across the northern half of the US. This celestial event is caused by a G3 geomagnetic storm. Dark skies away from city lights will offer the best viewing opportunities.