During the past two days, the Sun has had two bursts of radiation called a coronal mass ejections, or CMEs.
The one that was emitted Tuesday is supposed to arrive early tomorrow, Sept. 12, and create a G2 (Moderate) geomagnetic storm, according to the National Weather Service Space Weather Prediction Center.
The one that was emitted Wednesday is expected to arrive arriving later in the day and combine with Tuesday’s CME hence creating a G3 (strong) geomagnetic storm
The G3 storm watch will continue through Sept. 13 with G1 (minor) storming expected to occur into Sept. 14.
The authorities don’t seem to expect any problems that can’t be handled, however, and have not as of Thursday evening issued any advisories for the average citizen.