An unexpected geomagnetic storm hit Earth, despite the Sun being at the peak of its 11-year cycle. This event is unusual because it wasn't caused by a coronal mass ejection (CME), the typical source of such storms.
Instead, the storm originated from high-speed solar wind escaping a coronal hole. Coronal holes are areas where the Sun's magnetic field opens outward, releasing particle streams at unusually high speeds.
The storm reached G3 level on the NOAA scale on May 28-29, later decreasing to G1. Experts suggest the intensity could rise again to G2 before it dissipates, and the effects could continue for several hours.
G3 storms can affect satellites, navigation systems, and radio communications, and cause auroras at lower latitudes. No significant damage has been reported, and auroras are expected to remain confined to higher latitudes.
While such storms are not surprising during the solar cycle peak, the extended period of high activity poses risks to technology. Scientists continue to monitor the situation and gather data.