Solar flux 111 and estimated planetary A-index 6. The estimated planetary K-index at 1800 UTC on 06 September was 0.67.

Forecast Issued at 2200Z on 05 Sep 2026

Solar Activity Forecast: Solar activity is likely to be low with a slight chance for an M-class flare on days one, two, and three (06 Sep, 07 Sep, 08 Sep).

Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (06 Sep), quiet to active levels on day two (07 Sep) and quiet to unsettled levels on day three (08 Sep). Protons are expected to cross threshold on day one (06 Sep) and have a slight chance of crossing threshold on days two and three (07 Sep, 08 Sep).