Solar activity was moderate. Region 1513 (N17E17) produced two impulsive M1 flares at 30/1252Z and 30/1832Z. Region 1514 (S15E15) produced several C-class events during the period. Region 1515 (S16E30) continued to grow and is now an Ekc-type region with a beta-gamma magnetic configuration and an area of 380 millionths.

Solar activity is expected to be low with a chance for M-class flares for the next three days (01-03 July).

The geomagnetic field was active during the past 24 hours due to effects from the co-rotating interaction region (CIR) that arrived in advance of a recurrent coronal hole high speed stream (CH HSS). Increased solar wind speeds, temperature and density were observed at the ACE spacecraft around 30/0200Z along with an increase in total field strength to approximately 10 nT. Density began to decrease at approximately 30/1600Z while solar wind speeds continued to increase (reaching 700 km/s at the time of this report) indicating the transition from the CIR to the CH HSS.

Solar activity is expected to be unsettled to active during the next three days (01-03 July) with a chance for isolated minor storm periods due to effects from the favorably positioned CH HSS.

  觀測的       30 Jun 124
  預測的   01 Jul-03 Jul  125/125/130
  90天平均值        30 Jun 119

  觀測的 Afr/Ap 29 Jun  006/005
  估算值     Afr/Ap 30 Jun  014/021
  預測的    Afr/Ap 01 Jul-03 Jul  015/018-013/015-013/015