A powerful solar storm put on an amazing skyward light show worldwide overnight but caused what appeared to be only minor disruptions to the electric power grid, communications, and satellite positioning systems. The U.S. National Oceanic and Atmospheric Administration said extreme geomagnetic storm conditions continued, and there were preliminary reports of power grid irregularities and degradation of high-frequency communications and global positioning systems. But the Federal Emergency Management Agency said that as of early Saturday, no FEMA region had reported any significant impact. NOAA predicted that strong flares will continue through at least Sunday. Brilliant purple, green, yellow and pink hues of the Northern Lights were reported worldwide.
