STRONG GEOMAGNETIC STORM: Surprising forecasters, a strong and unexpected G3-class geomagnetic storm is underway during the early hours of August 26th. The storm may have been caused by a coronal mass ejection (CME) that arrived with little fanfare about 24 hours ago. Auroras mixed with moonlight have been reported from Scandinavia, Canada, and northern-tier US states such as New York and Michigan. Visit Spaceweather.com for updates.