Enlarge / Pink lights appear in the sky above College Station, Texas. (credit: ZoeAnn Bailey)

After a night of stunning auroras across much of the United States and Europe on Friday, a severe geomagnetic storm is likely to continue through at least Sunday, forecasters said.

The Space Weather Prediction Center at the US-based National Oceanic and Atmospheric Prediction Center observed that 'Extreme' G5 conditions were ongoing as of Saturday morning due to heightened Solar activity.

"The threat of additional strong flares and CMEs (coronal mass ejections) will remain until the large and magnetically complex sunspot cluster rotates out of view over the next several days," the agency posted in an update on the social media site X on Saturday morning.