Photographers were busy taking pictures of the Northern Lights in western Montana Monday evening, June 22, and into Tuesday morning.

The Sun unleashed what astronomers call a coronal mass ejection, which interacted with the Earth's magnetic field, causing the shifting colors. The Aurora Borealis was visible before midnight in the Hamilton area and the glow persisted for quite a while.

The solar storm effects will continue for two more evenings, according to forecasters. The initial aurora was visible as far south as Colorado and Arkansas.