New Halo-CME to arrive by early Dec 1

The most recent space weather monitoring has revealed the approach of another halo CME expected to impact Earth by early Dec 1. A message from NOAA issued at 0030 UTC on Nov 29, 2023, has conveyed this information.

“solar activity reached high levels with a M9.8 flare from AR 3500 at 28/1950 UTC, the highest of the period. Region 3500 (S09E04, Dkc/Beta-Gamma) continued to be the largest, most complex region on the visible solar disk, and the main culprit of activity producing a M3.4 flare at 28/1932 UTC along with the aforementioned M9 flare.  

…. Type II radio sweeps, associated with the aforementioned M-class flares with estimated speeds of 340 and 854 km/s, and 10 cm radio bursts (210 sfu and 720 sfu, respectively), were reported by USAF observatories. Then, at approximately 28/2012 UTC a full halo CME can be seen in NASA C2 coronagraph imagery. Analysis and modeling of this event is ongoing as of the time of this writing, but an Earth-directed trajectory is likely.”

A colleague from another space weather forecast center has shared information indicating their prediction of CME arrival at  0200 UTC +/- 6 hours on Dec 1,  potentially inducing a G3 (Kp 7) geomagnetic storm. I will be seeing very soon how NOAA predicts.

Based on information I have gathered, I would like to bring your attention to this upcoming significant disturbance event. I encourage you to consider the possibility of a radar run in the coming days. I will send additional details as soon as they become available.