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Solar Activity Report for 5/25/03

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  • David
    ** Aurora Watch In Effect ** The Earth is inside of a coronal hole solar wind stream tonight. There have been G-1 geomagnetic storm conditions observed within
    Message 1 of 1 , May 25, 2003
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      ** Aurora Watch In Effect **

      The Earth is inside of a coronal hole solar wind stream tonight.
      There have been G-1 geomagnetic storm conditions observed within the
      last 24 hours. While aurora haven't exactly been widespread, they are
      still at least a possibility as the high speed solar wind continues,
      and an aurora watch is in effect. The solar wind speed has been
      hovering around the 500 km/sec mark, give or take, for the last 48
      hours, and the elevated speed is expected to persist for at least the
      next 48 hours. There are only three numbered sunspot regions visible
      tonight, and the sunspot number is correspondingly low. None of the
      sunspot regions visible look to have the ability to generate a
      significant flare at the present time.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 51
      SFI : 121
      A index : 23
      K index : 4

      Solar wind speed : 479.2 km/sec
      Solar wind density : 3.4 protons/cc
      Solar wind pressure : 1.3 nPa

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been minor. Geomagnetic storms
      reaching the G1 level occurred.

      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 at low levels. Region 365 has become
      capable of producing C-class flares, if growth continues at this rate
      an isolated M-class flare may be a possibility over the next 24-48 hours.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at predominantly active levels
      through the forecast period. Minor storm conditions are possible
      especially at local nighttime hours. Isolated major storm intervals
      are possible on day two of the period. The elevated activity is
      expected in anticipation of yet another recurrent high speed stream
      coronal hole.

      Recent significant solar flare activity :
      None
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