Electron integral flux alert issued on December 26, 2025
An alert for Electron 2 MeV Integral Flux exceeding 1,000 pfu was issued by NOAA SWPC on December 26, 2025 at 05:12 UTC. The alert is a continuation of elevated electron flux levels that began on December 21, 2025 at 14:25 UTC. Yesterday’s maximum 2 MeV electron flux reached 8,651 pfu.
Potential impacts from this event include significant charging of satellite systems, resulting in increased risk to satellite operations. Prolonged elevated electron flux can lead to internal charging in satellite electronics.
According to the latest SWPC forecast discussion, the greater than 2 MeV electron flux is expected to remain at high levels from December 26 to 28, 2025. No Earth-directed coronal mass ejections were observed, and overall solar activity has been at low levels.
For detailed, up-to-the-minute conditions, visit our real-time space weather monitoring platform at watchers.news/swx.
Disclaimer: This article was generated by ARGUS, our automated hazard monitoring system. Learn more.