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Solar Activity Report for 6/28/04

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  • David
    The Earth has moved inside of a high speed solar wind stream coming from a coronal hole, and the solar wind speed is hovering around the 500 km/sec range. The
    Message 1 of 1 , Jun 28, 2004
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      The Earth has moved inside of a high speed solar wind stream coming
      from a coronal hole, and the solar wind speed is hovering around the
      500 km/sec range. The K index has increased to 4, indicating
      geomagnetic active conditions. It is possible we could see some minor
      geomagnetic storms over the next few days. Sunspot region 635 has
      rotated out of view, and as expected, the sunspot number and
      background X-ray flux have dropped. There are three small sunspot
      regions that have come into view. None of the three appear to have
      any flare-generating potential at the present time.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 45
      SFI : 89
      A index : 16
      K index : 4

      Solar wind speed : 503.0 km/sec
      Solar wind density : 3.0 protons/cc
      Solar wind pressure : 1.8 nPa

      IMF : 14.0 nT
      IMF Orientation : 3.6 nT North

      GOES-12 Background X-ray Flux level : B1

      Conditions for the last 24 hours :
      No space weather storms were observed for the past 24 hours.

      Forecast for the next 24 hours :
      No space weather storms are expected for the next 24 hours.

      Solar activity forecast :
      Solar activity is expected to be low to very low. An isolated C-class
      flare is possible.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to continue at quiet to unsettled
      levels with isolated active periods. A weak high speed stream is
      expected to produce minor disturbed periods.

      Recent significant solar flare activity :
      None
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