Solar activity has been at low levels for the past 24 hours, with eight numbered sunspot regions currently on the disk, according to the joint USAF/NOAA Solar Geophysical Activity Report and Forecast issued at 2200Z on 25 September 2026.
Solar activity is likely to remain low, with a slight chance for an M-class flare on days one, two and three — 26, 27 and 28 September, the report said. Event probabilities for an M-class flare were listed at 10 percent on each of the three days, while the chance of an X-class flare or a proton event stood at 1 percent.
The geomagnetic field was at quiet to active levels over the past 24 hours. Solar wind speed reached a peak of 557 km/s, total IMF reached 10 nT and the maximum southward component of Bz reached -10 nT. Electrons greater than 2 MeV at geosynchronous orbit peaked at 404 pfu.
The geomagnetic field is expected to be at quiet to active levels on 26 September, quiet to unsettled levels on 27 September and quiet levels on 28 September.
The observed Penticton 10.7 cm flux was 105 on 25 September, with predictions of 100, 095 and 095 for 26-28 September against a 90-day mean of 123. The PCAF alert status was green.