The Joint USAF/NOAA Solar Geophysical Activity Report, issued on May 20, 2026, indicates that solar activity remains at low levels, though a slight chance for M-class flares exists over the next three days. Four numbered sunspot regions are currently visible on the solar disk.
Solar activity is expected to stay low, with a 20% chance for an M-class flare on May 21, increasing to 25% on May 22 and 23. The geomagnetic field has been at quiet to unsettled levels, with solar wind speed reaching a peak of 542 km/s and electrons greater than 2 MeV at geosynchronous orbit peaking at 1716 pfu.
Looking ahead, the geomagnetic field is forecast to be quiet to unsettled on May 21, quiet to active on May 22, and quiet again on May 23. Middle latitudes face a 30% chance of active conditions on May 22, while high latitudes have a 35% chance of minor storms across the forecast period, with a 25-30% chance of major-severe storms.