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Solar Activity Report for 8/13/02

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  • b1blancer_29501
    Coronal hole effects are continuing this evening, although they are not very pronounced. The solar wind speed is, however, mildly elevated, and it should
    Message 1 of 1 , Aug 13, 2002
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      Coronal hole effects are continuing this evening, although they are
      not very pronounced. The solar wind speed is, however, mildly
      elevated, and it should continue to be for the next couple of days.
      Sunspot region 69, a new, large sunspot region that has just rotated
      into view over the eastern limb of the solar disk, has already caused
      some flare activity. Two M-class flares have been produced by this
      sunspot region over the last 24 hours. More flares are definitely a
      possibility in the days ahead, and a major flare is not out of the
      question.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 214
      SFI : 192
      A index : 13
      K index : 2

      Solar wind speed : 438.4 km/sec
      Solar wind density : 1.3 protons/cc
      Solar wind pressure : 0.7 nPa

      IMF : 4.8 nT
      IMF Orientation : 2.1 nT

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been minor. Radio blackouts
      reaching the R1 level occurred.

      Forecast for the next 24 hours :
      Space weather for the next 24 hours is expected to be minor. Radio
      blackouts reaching the R1 level are expected.

      Solar activity forecast :
      Solar activity is expected to be at low to moderate levels. Region 69
      is likely to produce isolated M-class flares during the period. There
      is also a slight chance for a major flare from this region.

      Geomagnetic activity forecast :
      Geomagnetic field activity is expected to be at quiet to unsettled
      levels through the period. The greater than 2 MeV electron flux at
      geo-synchronous orbit may reach high levels during the first half of
      the forecast period.

      Recent significant solar flare activity :
      14-Aug-2002 0212Z M2.3
      13-Aug-2002 1904Z M1.8
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