Strong (G3) Geomagnetic Storm conditions continue this evening with the threshold again reached at 19:25 UTC (Apr 16). The Bz component of the interplanetary magnetic field (IMF) just now shifted sharply north, so we will see what happens over the next several hours for aurora sky watchers in North America once it is dark outside. For viewers in Europe, Scandinavia and UK, you all should have a good chance to see the aurora should local weather and light conditions allow. Have any photos? Feel f

The huge solar storm is keeping power grid and satellite operators on edge

Northern lights forecast: Aurora could be visible across northern U.S. Tuesday after solar eruptions