Solar flux 142 and estimated planetary A-index 10. The estimated planetary K-index at 0300 UTC on 11 Februa

Forecast Issued at 2200Z on 10 Feb 2026

Solar Activity Forecast: Solar activity is likely to be moderate with a chance for X-class flares on day one (11 Feb) and likely to be moderate with a slight chance for an X-class flare on days two and three (12 Feb, 13 Feb).

Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (11 Feb, 12 Feb, 13 Feb). Protons have a chance of crossing threshold on day one (11 Feb), have a slight chance of crossing threshold on day two (12 Feb) and have a slight chance of crossing threshold on day three (13 Feb).