An X9.3 flare (R3-Strong radio blackout) occurred on 6 September at 1202 UTC (0802 ET).
This flare followed an X2.2 flare (R3 also) at 0910 UTC (0610 ET). The source region for both flares was Region 2673. Radio emissions suggest a coronal mass ejection (CME) may be associated with the X9.3 flare, but we await SOHO/LASCO coronagraph imagery for confirmation.
We will update this post when we are able to analyze coronagraph imagery. Keep checking our SWPC webpage for the latest information and updates.
SOURCE:
R3 (X9.3 flare) Radio Blackout on 6 September at 1202 UTC | NOAA / NWS Space Weather Prediction Center