Strongest Geomagnetic Storm of 2025 to Hit Earth This Friday

On November 10, 2025, the scientific community is closely monitoring a powerful geomagnetic storm that is expected to hit Earth on November 7. According to the Solar Astronomy Laboratory of the Russian Academy of Sciences' Institute of Space Research and the Institute of Solar-Terrestrial Physics of the Siberian Branch of the Russian Academy of Sciences, this storm is set to be the strongest of the year and one of the most powerful in several years.

The intensity of the storm is predicted to reach G4-G5 levels, which are considered "extremely strong" on the five-point scale used to measure geomagnetic disturbances. This is particularly concerning as the solar plasma propagation model bears a close resemblance to the conditions that preceded the G5-level storm that occurred on May 11-12, 2024, an event during which multiple coronal mass ejections merged into a single structure of unprecedented scale on their trajectory toward Earth.

While initial forecasts had predicted a storm intensity at the G3 to G4 level, updated calculations throughout the day on November 6 are expected to adjust this range upward to G4-G5. This means that the upcoming geomagnetic storm on November 7, 2025, is likely to be one of the most severe in recent memory, potentially causing significant disruptions to power grids, satellite communications, and other technological systems.