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Solar Activity Report for 11/21/04

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  • David
    ** Aurora Watch In Effect ** The Earth is currently inside of a coronal hole high speed solar wind stream, and that has served to kick the geomnagnetic
    Message 1 of 1 , Nov 21, 2004
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      ** Aurora Watch In Effect **

      The Earth is currently inside of a coronal hole high speed solar wind
      stream, and that has served to kick the geomnagnetic activity level up
      a bit. G-1 geomagnetic storm conditions have been observed within the
      last 24 hours. Skywatchers in the higher latitudes should keep an eye
      out for aurora. There are two sunspot regions visible, but neither
      appears to have the ability to generate a significant flare for the
      time being. There is another coronal hole that is rotating into an
      Earth-pointing position, and we could be seeing solar wind gusts from
      it along about the 25th.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 27
      SFI : 101
      A index : 16
      K index : 2

      Solar wind speed : 562.8 km/sec
      Solar wind density : 0.7 protons/cc
      Solar wind pressure : 0.4 nPa

      IMF : 5.6 nT
      IMF Orientation : 2.5 nT South

      GOES-12 Background X-ray Flux level : B1

      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 very low to low.

      Geomnagnetic activity forecast :
      The geomagnetic field is expected to be quiet to unsettled with the
      possibility of isolated active periods.

      Recent significant solar flare activity :
      None
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