Noaa confirms that Beta AR2699 is increasing in size and may unleash an M-Class solar flare within the next 24 to 48 hours.
NOAA also confirmed that there was a long sustained C Class solar flare emitted from AR2699 starting around 0000 UT, peaking at 0135 UT, and continuing even at 0500 UT. Here is a solar image from NASA showing AR2699 still erupting at 0500 UT.
It peaked around 0135 UT as seen in the GOES plot below. However, its profile looks more this could be a hyder flare associated with AR2699. Indeed, as http://www.spaceweather.com just revealed, with AR2699's constantly changing complex magnetic structures, this could well be a magnetic reconnection:
spaceweather.com wrote:Rapid changes in the appearance of a sunspot mean one thing:
Its magnetic field is changing rapidly as well. Tangled magnetic fields
can criss, cross, and explode--a process known as "magnetic
reconnection." Solar flares in the magnetic canopy of AR2699 are likely
on Feb. 12th.
Joint USAF/NOAA Solar Region Summary
SRS Number 43 Issued at 0030Z on 12 Feb 2018
Report compiled from data received at SWO on 11 Feb
I. Regions with Sunspots. Locations Valid at 11/2400Z
Nmbr Location Lo Area Z LL NN Mag Type
2699 S07W14 167 0230 Dai 10 14 Beta
IA. H-alpha Plages without Spots. Locations Valid at 11/2400Z Feb
Nmbr Location Lo
2698 S03W58 211
II. Regions Due to Return 12 Feb to 14 Feb
Nmbr Lat Lo
None