Solar flaring activity was at moderate levels over the past 24 hours with3 M-class flares identified. A total of 6 numbered sunspot groups were identified on the disk over the past 24 hours. The largest flare was a M3.4 flare (SIDC Flare 8220) peaking on July 20 at 22:25 UTC, produced by SIDC Sunspot Group 920 (NOAA Active Region 4493). This region, classified as magnetic type beta-gamma-delta represents the largest and most complex sunspot group on the visible disk, responsible for most of the observed flaring activity, including an M2.5 flare (SIDC Flare 8215) peaking on July 20 at 14:36 UTC and an M1.1 flare (SIDC Flare 8214) peaking on July 20 at 19:20 UTC. SIDC Sunspot Group 919 (NOAA Active Region 4492) currently located at N15E55 is classified as magnetic type beta-gamma, but has produced only isolated low levels of activity. The remaining regions are magnetically simpler and have been quiet. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours with C-class flares expected and chances for further M-class flaring.
No Earth-directed coronal mass ejections (CMEs) have been identified in the available coronagraph imagery over the past 24 hours.
SIDC Coronal Hole 149 (an equatorial coronal hole with a negative polarity) which first reached the central meridian on July 19 continues to partially reside there. An associated high speed stream arrival is about to arrive at the Earth in the upcoming hours.
SIDC Coronal Hole 142 (recurrent mid-to-equatorial latitude coronal hole with a negative polarity) has crossed the central meridian on July 20 and continues to reside there. A high speed-stream related to it could be anticipated at Earth on July 23, most probably mixed with ongoing high speed stream from SIDC 149.
Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the 24 hours.
The greater than 2 MeV electron flux as measured by GOES 18 and GOES 19 was slowly oscillating around the 1000 pfu threshold over the past 24 hours. It is expected to be below the 1000 pfu threshold over the 24 hours. The 24-hour electron fluence was at the border of nominal to moderate levels and is expected to temporary decrease to nominal levels over the 24 hours.