Solar activity was at low levels. Activity consisted of several minor C-class flares. The most significant was a C3/Sf flare from Region 9788 (N17E27), which occurred at 20/1552 UTC. Minor growth was observed in this region during the period, although it remains a simple bipolar complex. Little, if any, changes during the period were evident in Regions 9783 (S11W25), 9785 (N11W39), 9786 (S25W45), and 9787 (S07E46). Newly numbered Region 9791 (S03W19) shows some promise, evidenced by a rapidly growing spot complex. Regions 9792 (N07E23), 9793 (S15E32), and 9794 (N11E65) were also numbered today.

Solar activity is expected to be at predominantly low levels. Although, Regions 9785, 9786, 9887, and 9788 exhibit the potential to produce M-class flares.

The geomagnetic field activity was at quiet to unsettled levels.

The geomagnetic field activity is expected to be at quiet to unsettled levels. However, isolated active conditions may exist on day one of the forecast period due to coronal hole effects.

  觀測的       20 Jan 222
  預測的   21 Jan-23 Jan  225/235/240
  90天平均值        20 Jan 223

  觀測的 Afr/Ap 19 Jan  011/011
  估算值     Afr/Ap 20 Jan  006/008
  預測的    Afr/Ap 21 Jan-23 Jan  008/008-006/008-006/008