Solar activity was moderate. Region 160 (S21W26) produced two M-class events, the largest an M1.8/1b at 20/1428 UTC with an associated Type II radio sweep (657 km/s). Region 160 has increased in magnetic complexity to a beta-gamma configuration due to mixing in the leading spots. Region 162 (N26E46) continues to grow in area coverage and spot count. This region has produced two M-class events, the largest an M1.8/Sf at 20/0045 UTC. Region 162 maintains its beta-gamma magnetic configuration and polarity mixing has been observed in the leading edge of the trailing spots. Region 158 (S07W32) produced only minor flares and has simplified to a beta magnetic configuration. Two new regions were numbered today: Region 164 (N11E54) and Region 165 (N20E71).

Solar activity is expected to be low to moderate. Region 160 and Region 162 have M-class potential.

The geomagnetic field was at quiet to unsettled levels. The high speed stream continues but effects are minimal due to a consistently northward Bz.

The geomagnetic field is expected to be quiet to unsettled. There is a chance of isolated active to minor storm conditions on day two and day three due to effects from the M-class activity mentioned above.

  Pozorováno       20 Oct 180
  Předpovězeno   21 Oct-23 Oct  180/175/175
  90 denní průměr        20 Oct 181

  Pozorováno Afr/Ap 19 Oct  009/011
  Odhadovaný     Afr/Ap 20 Oct  010/010
  Předpovězeno    Afr/Ap 21 Oct-23 Oct  010/010-010/015-012/020