Decaying Sunspot Poses Threat of M-Class Solar Flares and Possible Solar Storm.

The unstable magnetic field of the large sunspot AR3315 has decayed, reducing the threat of an X-class solar flare but still leaving a 40% chance of an M-class flare eruption. If an M-class solar flare does occur, it could still cause a geomagnetic storm, damaging smaller satellites, disrupting communication and internet connectivity, and potentially causing power grid failures. NOAA's DSCOVR satellite monitors solar storms and the Sun's behavior to predict and prepare for potential impacts.