-- Here's one way to end the year on a bright note.
NOAA classifies solar storms on a scale of one to five (one being the weakest; five being the most severe). Today's storm is forecast to be a G3 event, meaning it could have the strength to cause fluctuations in some power grids, intermittent radio blackouts in higher latitudes and possible GPS issues.
The storm is the result of a coronal mass ejection -- basically a flare of charged protons and electrons -- that burst from the sun earlier this week. Once they reach Earth, the particles interact with the planet's magnetic field to paint the sky in dazzling colors.
NOAA predicts the effects of today's storm could linger into New Year's Eve.