Solar flux 196 and estimated planetary A-index 10. The estimated planetary K-index at 2100 UTC on 01 Decembe

Forecast Issued at 2200Z on 01 Dec 2025

Solar Activity Forecast: Solar activity is expected to be moderate with a chance for X-class flares on day one (02 Dec) and likely to be moderate with a chance for X-class flares on days two and three (03 Dec, 04 Dec).

Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (02 Dec), quiet to major storm levels on day two (03 Dec) and active to major storm levels on day three (04 Dec). Protons have a chance of crossing threshold on day one (02 Dec), have a slight chance of crossing threshold on day two (03 Dec) and have a slight chance of crossing threshold on day three (04 Dec).