Solar activity increased to low levels today. A C1 x-ray flare occurred in Region 780 (S07W43) at 25/0346Z. This region continues to decay as white light depicts a two spot AXX alpha group. There were several disappearing filaments reported today near the time SOHO/LASCO imagery depicts a full halo CME. Much of CME signature is believed to be back-sided, although there is some evidence that the filament activity contributed to the overall CME signature leaving the potential for an Earth directed component. No new regions were numbered today.

Solar activity is expected to be at very low levels.

The geomagnetic field was at quiet to unsettled levels. Showing weak geoeffective consequences, the recurrent high speed coronal hole stream has pushed the solar winds speeds to over 600 km/sec. The Bz component of the interplanetary magnetic field has been predominantly north throughout the period.

The geomagnetic field is expected to be at predominantly quiet to unsettled levels. Isolated active conditions are possible on 26 June due to the high speed stream and again on 28 June due to the potential effects from the front-sided component of the CME activity seen today.

  觀測的       25 Jun 077
  預測的   26 Jun-28 Jun  080/080/085
  90天平均值        25 Jun 093

  觀測的 Afr/Ap 24 Jun  007/017
  估算值     Afr/Ap 25 Jun  004/008
  預測的    Afr/Ap 26 Jun-28 Jun  010/015-010/012-012/015