Solar flux 105 and estimated planetary A-index 4. The estimated planetary K-index at 1200 UTC on 16 April was 0.67.

Forecast Issued at 2200Z on 15 Apr 2026

Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (16 Apr, 17 Apr, 18 Apr).

Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (16 Apr), quiet to major storm levels on day two (17 Apr) and unsettled to major storm levels on day three (18 Apr).