Solar flux 147 and estimated planetary A-index 8. The estimated planetary K-index at 2100 UTC on 27 July was 1.67. Space weather for the past 24 hours has been minor. Radio blackouts reaching the R1 level occurred.

Forecast Issued at 2200Z on 26 Jul 2026

Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (27 Jul, 28 Jul, 29 Jul).

Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to active levels on day one (27 Jul), quiet to active levels on day two (28 Jul) and quiet to unsettled levels on day three (29 Jul).