Solar activity decreased to low levels today. Region 794 (S11E19) produced a C8/Sf event at 04/0559Z, which was the largest flare of the period. A resulting CME was seen on LASCO C2 imagery which does not appear to be Earth directed. This region continues to show steady growth in sunspot area. Region 792 (N11W14) produced a single C-class flare today and underwent continued decay in magnetic complexity. No new regions were numbered today.

Solar activity is expected to be at low to moderate levels. Regions 792 and 794 are capable of producing isolated M-class flare activity.

The geomagnetic field was at predominantly quiet to unsettled levels. A period of active conditions occurred at high latitudes between 04/0600Z and 0900Z.

The geomagnetic field is expected to be at quiet to unsettled levels.

  觀測的       04 Aug 106
  預測的   05 Aug-07 Aug  105/105/100
  90天平均值        04 Aug 096

  觀測的 Afr/Ap 03 Aug  006/011
  估算值     Afr/Ap 04 Aug  010/015
  預測的    Afr/Ap 05 Aug-07 Aug  007/012-007/012-010/012