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Solar Activity Report for 12/25/04

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  • David
    ** Aurora Watch In Effect ** On Christmas Day, the Earth was inside of a weak coronal hole solar wind stream. It isn t all that much of one, and the current
    Message 1 of 1 , Dec 25, 2004
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      ** Aurora Watch In Effect **

      On Christmas Day, the Earth was inside of a weak coronal hole solar
      wind stream. It isn't all that much of one, and the current solar
      wind speed is in the 500 km/sec range. Still, however, it might be
      enough to spark geomagnetic storm conditions, and an aurora watch is
      in effect for the high latitudes. Sunspot region 713 remains to be
      the only numbered sunspot region visible, and it doesn't appear to
      have the ability to generate a significant flare.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 26
      SFI : 93
      A index : 14
      K index : 3

      Solar wind speed : 504.5 km/sec
      Solar wind density : 1.0 protons/cc
      Solar wind pressure : 0.6 nPa

      IMF : 7.4 nT
      IMF Orientation : 5.6 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 very low with a chance for C-class
      activity from Region 713.

      Geomagneetic activity forecast :
      The geomagnetic field is expected to be quiet to active with isolated
      minor storm periods possible at high latitudes.

      Receent significant solar flare activity :
      None
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