Solar flux 132 and estimated planetary A-index 18. The estimated planetary K-index at 1500 UTC on 17 November was 2.00. No sp

Forecast Issued at 2200Z on 16 Nov 2025

Solar Activity Forecast: Solar activity is likely to be moderate with a slight chance for an X-class flare on day one (17 Nov) and likely to be low with a slight chance for an M-class flare on day two (18 Nov) and expected to be very low with a chance for a C-class flares and a slight chance for an M-class flare on day three (19 Nov).

Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to minor storm levels on day one (17 Nov), quiet to active levels on day two (18 Nov) and quiet to unsettled levels on day three (19 Nov). Protons greater than 10 Mev have a slight chance of crossing threshold on day one (17 Nov).