Solar activity increased to moderate levels. An M1 X-ray flare occurred at 12/2049 UTC and was in progress as the period ended. The source of the flare appeared to be Region 9182 (N06W66). Activity was at low levels prior to this flare with isolated, low-level C-class flares from Region 9182. Region 9182 continued to show a slight mixing of polarities in the vicinity of its leader spots, but no further development was evident. Minor growth was noted in Regions 9190 (S18E20) and 9192 (S13W12). Both regions were small and simply structured. Four new regions were numbered today: 9194 (S13E60), 9195 (N14W70), 9196 (S31W45), and 9197 (N26E70).

Solar activity is expected to be at low to moderate levels. Region 9182 may produce additional isolated M-class flares. Chances for M-class flare activity are expected to increase beginning 14 October due to the return of old Region 9169 (N12, L = 080).

Geomagnetic field activity was at quiet to unsettled levels.

The CME from the long-duration C6/1F flare of 09 October is now expected to arrive by early 13 October followed by active to major storm conditions. Activity is expected to decline to unsettled to active levels on 14 October as the CME effects subside. There will be a slight chance for high flux levels at greater than 2 MeV late in the period.

  觀測的       12 Oct 163
  預測的   13 Oct-15 Oct  170/180/195
  90天平均值        12 Oct 178

  觀測的 Afr/Ap 11 Oct  013/014
  估算值     Afr/Ap 12 Oct  008/011
  預測的    Afr/Ap 13 Oct-15 Oct  035/035-015/015-012/012