Solar activity has been at very low levels over the past 24 hours, with six numbered sunspot regions currently on the disk, according to the Joint USAF/NOAA Solar Geophysical Activity Report and Forecast issued at 2200Z on 13 Sep 2026.
Solar activity is likely to be low, with a slight chance for an M-class flare on days one, two and three (14 Sep, 15 Sep and 16 Sep), the report said. Event probabilities for an M-class flare were listed at 10 percent for each of the three days, with X-class flares at 1 percent and proton events at 1 percent. The PCAF status is green.
The geomagnetic field was at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 461 km/s at 13/1541Z, total IMF reached 7 nT at 13/0022Z, and the maximum southward component of Bz reached 6 nT at 13/0125Z. Electrons greater than 2 MeV at geosynchronous orbit peaked at 1827 pfu.
The geomagnetic field is expected to be at unsettled to active levels on day one, quiet to active levels on day two, and unsettled to minor storm levels on day three. The Penticton 10.7 cm flux was observed at 114 on 13 Sep, with predictions of 105, 100 and 095 for 14-16 Sep.