Solar activity has been high. Region 9591 (S19E32) produced several M-class flares and an X5/3b event at 25/1645 UTC. The event had an associated 8100 sfu tenflare and a Type II and Type IV radio sweep. SOHO/LASCO images observed a well defined coronal mass ejection with this event. This region continues to develop and retains a large Fki beta-gamma-delta configuration. Region 9596 (N23E79) was numbered today. The observed Penticton 10.7 cm flux for today may also be slightly enhanced as a result of the earlier event.

Solar activity is expected to be moderate to high with Region 9591 producing M-class flares and a chance for another major flare from this region.

The geomagnetic field has been quiet to active through the period.

The geomagnetic field is expected to be unsettled to active for 26 August due to possible coronal hole affects. Active to minor storm conditions are expected for 27 and 28 August as a result of the X-class event at 25/1645 UTC. A greater than 10 MeV proton event is also possible on 26 August from the activity today.

  觀測的       25 Aug 199
  預測的   26 Aug-28 Aug  190/195/200
  90天平均值        25 Aug 152

  觀測的 Afr/Ap 24 Aug  005/004
  估算值     Afr/Ap 25 Aug  008/007
  預測的    Afr/Ap 26 Aug-28 Aug  015/015-035/035-030/030