Powerful solar activity released by the sun is heading for Earth and it’s likely to create dazzling auroral displays in unexpected areas Monday evening and early Tuesday morning. It could also disrupt satellite-based communications and GPS accuracy.

“An S4 severe solar radiation storm is now in progress - this is the largest solar radiation storm in over 20 years,” SWPC shared on X, formerly known as Twitter. “The last time S4 levels were observed was in October, 2003. Potential effects are mainly limited to space launch, aviation, and satellite operations.”