Preface: Between April 19th and 20th, 2026, a solar storm will cross Earth’s magnetic poles. When the coronal mass ejection (CME) reaches Earth, it will first disrupt the Earth’s magnetic field, triggering a geomagnetic storm—a global geomagnetic disturbance that could interfere with satellite operations and ground-based power systems. What are your thoughts on this?

Background: We are currently at the peak of the 25th solar cycle, meaning storms of today’s magnitude will become more frequent. While G2-class storms have limited impact on everyday life, they represent a stress test for precision navigation (due to increased GPS errors) and power grid stability, requiring close monitoring.

The CME energy of this storm is expected to peak on the evening of the 19th.

Practical Effects on Earth:

•       Aurora Borealis: Because of the G1-G2 storm conditions, high-latitude regions (e.g., Canada, Northern US, Northern Europe) have a high probability of visible auroras during the night of April 19.

•       Radio & Navigation: If AR 4419 produces an M-class flare, it may cause brief Shortwave Radio Blackouts (R1-R2 levels). Additionally, the geomagnetic disturbance from the coronal hole might cause minor fluctuations in GPS accuracy.

Official details: Please refer to the link – https://www.swpc.noaa.gov/communities/aurora-dashboard-experimental