X-ray flux at GOES-16 has been nearly flat for the last 20 minutes, still at X1.3 allowing R3 (Strong) radio blackout conditions to persist across the northern and central Atlantic basin and surrounding regions, including eastern North America, northern South America, most of Greenland, northwestern Africa, and western Europe. #solarflare#spaceweather#spacewx
It's worth noting that AR3697 is the return of our old friend AR3664, which was responsible for numerous X-class flares and the strongest geomagnetic storm in over 20 years during its previous transit. #solarflare#spaceweather#spacewx
After a whole day and a half with no significant solar activity, newly-designated AR3685 — currently the largest active sunspot region on the visible disk as it rounds the east limb — just produced an M7.2 X-ray flare (R2 – Moderate radio blackout). This is on top of the X2.9 flare it produced while it was still on the far side of the limb, suggesting that its transit across the disk will be a busy one. #solarflare#spaceweather#spacewx
Well, that didn't take long: a new active sunspot region just around the east limb (possibly the future AR3683) just produced an X2.9 flare (R3 – Strong radio blackout), with only a 6-hour gap since the last X-class flare (X3.4) from former AR3664, which has rotated beyond the west limb. #solarflare#spaceweather#spacewx
This is likely the return of former AR3654, which produced an M9.5 flare near the end of its last transit across the solar disk; it has clearly continued developing during its rotation around the backside. #solarflare#spaceweather#spacewx
Type II and IV radio sweeps have already been picked up by SWPC, strongly implying that a CME was produced; however, given the region's location around the east limb, it's unlikely to be Earth-directed. #solarflare#spaceweather#spacewx
Looking back through the SWPC archives, the region responsible for this flare might actually be slightly further south than AR3654 was, so it might instead be either old AR3655 or an entirely new active region altogether. #solarflare#spaceweather#spacewx