Solar activity increased to high levels. Region 30 (N18W00) produced an X3/3b flare at 15/2008UTC associated with a 1900 sfu Tenflare, a Type IV radio sweep, and a magnetic crochet (based on Boulder USGS magnetometer data). This region also produced frequent C-class flares including a C9/Sf at 15/1155 UTC associated with a Type II radio sweep. Region 30 showed significant growth in its trailer spots during the past few days including the formation of multiple magnetic delta configurations. The remaining active regions were unremarkable. New Regions 35 (S09E63) and 36 (S07E76) were numbered.

Solar activity is expected to be moderate. Region 30 is likely to produce isolated M-class flares. Region 30 could also produce another major flare during the period.

Geomagnetic field activity has been at quiet to unsettled levels.

Geomagnetic field activity is expected to increase to quiet to active levels on 16 July due to recurrent coronal hole effects. Activity may increase to active to minor storm levels on 17 July following today's X-flare. A greater than 10 MeV proton event is expected to begin early on 16 July, also due to today's X-flare.

  觀測的       15 Jul 160
  預測的   16 Jul-18 Jul  160/165/170
  90天平均值        15 Jul 161

  觀測的 Afr/Ap 14 Jul  001/006
  估算值     Afr/Ap 15 Jul  005/006
  預測的    Afr/Ap 16 Jul-18 Jul  012/012-020/020-012/012