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Solar Activity Report for 3/4/03

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  • David
    ** Aurora Watch In Effect ** The Earth is now inside of a high speed coronal hole solar wind stream, and geomagnetic storm conditions have been observed within
    Message 1 of 1 , Mar 4, 2003
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      ** Aurora Watch In Effect **

      The Earth is now inside of a high speed coronal hole solar wind
      stream, and geomagnetic storm conditions have been observed within the
      last 24 hours. Skywatchers in the higher latitudes should be on the
      lookout for aurora tonight. The high speed solar wind is expected to
      persist for at least the next 24 hours. On the sunspot scene, sunspot
      region 296 is by far the biggest region currently visible, and poses a
      threat for M-class flares. There are four sunspot regions visible,
      and the sunspot number, while not really high, is the highest it's
      been in quite a while.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 160
      SFI : 146
      A index : 20
      K index : 3

      Solar wind speed : 459.2 km/sec
      Solar wind density : 3.8 protons/cc
      Solar wind pressure : 1.2 nPa

      IMF : 5.4 nT
      IMF Orientation : 0.1 nT North

      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 continue at low levels. Isolated C-class
      flares are possible primarily from Region 296, with a slight chance of
      a low M-class flare.

      Geomagnetic actviity forecast :
      The geomagnetic field is expected to continue at unsettled to active
      levels early, but will return to quiet to unsettled levels late on day
      one as the high speed stream subsides. Isolated active periods at
      mostly higher latitudes are possible through the next three days.

      Recent significant solar flare activity :
      None
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