Experts measure geomagnetic activity using the Kp index, which ranges from 0 to 9. For Wednesday night's solar storm, the level is sitting at 8. According to the National Weather Service ...

The storm brought the Northern Lights at a Kp index of 7 and 8 throughout the night - the highest possible being 9. Typically, the Northern Lights are not visible as far south as Ohio, being ...

According to NOAA, the Kp index is expected to peak at 6 (on a scale of 0 to 9) over the next 24 hours. Northern lights, also known as the Aurora Borealis, occur when solar activity, such as solar ...