Solar flux 139 and estimated planetary A-index 8. The estimated planetary K-index at 0600 UTC on 26 May was 1.33. Spac

Forecast Issued at 2200Z on 25 May 2026

Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (26 May, 27 May, 28 May).

Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (26 May) and quiet to active levels on days two and three (27 May, 28 May).