Solar and geomagnetic activity remained low to active over the past 24 hours, with forecasters predicting continued low solar activity and quiet to active geomagnetic conditions for the coming days. The Joint USAF/NOAA Solar Geophysical Activity Report, issued on May 28, 2026, detailed current conditions and future outlooks.
Currently, 11 sunspot regions are visible on the solar disk. Solar activity is expected to remain low through May 31, though there is a 40% chance of M-class flares occurring on each of these days. The Penticton 10.7 cm Flux was observed at 145 on May 28, with predictions of 142, 145, and 142 for the subsequent three days.
Geomagnetic fields were quiet to active, with solar wind reaching 491 km/s. Electron levels at geosynchronous orbit peaked at 561 pfu. The geomagnetic field is forecast to be quiet to unsettled on May 29 and 30, shifting to quiet to active levels on May 31. Probabilities for minor storms at middle latitudes are 5-10%, while high latitudes face a 25-35% chance of minor storms over the forecast period.