Overview

• A coronal mass ejection (CME) erupted from sunspot AR3835 on Sunday, sending solar plasma toward Earth.
• The CME is expected to glance off Earth's magnetosphere on Wednesday, potentially causing a minor geomagnetic storm.
• This event coincides with the autumnal equinox, a period when geomagnetic storms are more likely due to the alignment of Earth's magnetic field with the sun's.
• The National Oceanic and Atmospheric Administration (NOAA) predicts the storm will be a G1 or 'minor' class, the weakest category of geomagnetic storms.
• While the storm may cause minor disruptions in communications and power grids, it could also result in visible auroras in northern regions of the U.S.