Electron 2 MeV Integral Flux Alert issued on April 3, 2026

An Electron 2 MeV Integral Flux Alert was issued on April 3, 2026, after flux levels exceeded 1,000 pfu at 09:20 UTC. The alert was released by NOAA’s Space Weather Prediction Center at 09:36 UTC, confirming observations from the GOES19 station.

According to NOAA SWPC, potential impacts include significant charging of satellite systems, resulting in an increased risk to satellite operations. This elevated electron flux can lead to surface charging, which has the potential to affect satellite electronics and operations in geosynchronous orbit. It is important for satellite operators to remain aware of current conditions and take appropriate mitigation measures.

Forecasts indicate that the elevated electron flux is likely influenced by high-speed solar wind streams (HSS). The latest forecast suggests these high flux conditions are expected to persist through April 3 and April 4, 2026, due to ongoing solar and geomagnetic activity, including recent coronal mass ejections and interactions with solar wind streams.