Solar flux 110 and estimated planetary A-index 4. The estimated planetary K-index at 1500 UTC on 05 September was 1.33.

Forecast Issued at 2200Z on 04 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 (05 Sep, 06 Sep, 07 Sep).

Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (05 Sep, 06 Sep) and quiet to active levels on day three (07 Sep).