A major flare on the Sun from the large active sunspot Region 792, (which is the return of the old Region 786), occurred at 0635 UT this morning, resulting in a minor radiation storm (S1). There is a slight possibility for moderate levels (S2) later on; however, there is only a slight chance for a minor geomagnetic storm (G1). Auroras are possible tonight or tomorrow when the CME reaches Earth.
Additional activity is likely from the region as it rotates across the Sun and additional major events could lead to higher levels of radiation storms and geomagnetic storms. Agencies impacted by solar flare radio blackouts, geomagnetic storms, and solar radiation storms should continue to closely monitor the space environment during the rotation of Region 792 across the Sun between now and its anticipated departure on 12 August.