Solar activity was low. Region 1319 (N11W13) produced the most activity during the period, including a C6 x-ray event at 16/1514Z as well as numerous other low level C-class events. Region 1317 (S26E01) produced a slow rise C1/Sf flare at 16/1355Z with associated type II and type IV radio sweeps shortly after. The estimated Type II speed was 618 km/s. No partial or full halo signature indicating an Earth directed CME has been observed by SOHO LASCO, nor was a feature ascertainable on STEREO coronagraph imagery at the time of this report. Please note that there was an error on the location of Region 1321 on the Solar Region Summary issued at 0030Z on 16 October. The actual location of Region 1321 was S14E50.

Solar activity is expected to be low with a chance for an M-class flare over the next 3 days (17-19 October).

The geomagnetic field was mostly quiet with an isolated unsettled period from 16/03-06Z due to weak CH HSS effects.

The geomagnetic field is expected to be mostly quiet for the next 3 days (17-19 October) as weak CH HSS effects continue to wane.

  Observed       16 Oct 151
  Predicted   17 Oct-19 Oct  150/150/150
  90 Day Mean        16 Oct 118

  Observed Afr/Ap 15 Oct  004/008
  Estimated     Afr/Ap 16 Oct  005/008
  Predicted    Afr/Ap 17 Oct-19 Oct  005/008-005/005-005/005