The Northern Lights may be visible in the U.S. on Sunday, Nov. 16, following an X4-class solar flare and a coronal mass ejection, say space weather experts at NOAA.

The Northern Lights may be visible in the U.S. on Sunday, Nov. 16, following an X4-class solar flare and a coronal mass ejection, say space weather experts at NOAA.

A coronal mass ejection recorded on Friday could reach Earth and cause geomagnetic storms on Sunday night.