Solar flux 109 and estimated planetary A-index 17. The estimated planetary K-index at 0600 UTC on 16 March was 3.00. Space weather for the past 24 hours has been minor. Radio blackouts reaching the R1 level occurred.

Forecast Issued at 2200Z on 15 Mar 2026

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

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