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Solar Activity Report for 4/19/03

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  • David
    Geomagnetic activity is winding down tonight as the Earth exits the high speed solar wind stream that has been influencing Earth s geomagnetic environment for
    Message 1 of 1 , Apr 19 9:30 PM
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      Geomagnetic activity is winding down tonight as the Earth exits the
      high speed solar wind stream that has been influencing Earth's
      geomagnetic environment for the last several days. Although the solar
      wind speed is still well above 500 km/sec, no forther significant
      geomagnetic activity is expected for the next several days. The solar
      wind speed is expected to decline during the period. There are now
      three sunspot regions visible, and the sunspot number has increased a
      little from it's low of 37 a couple of days ago. None of the sunspots
      visible, however, look to have any potential for producing significant
      flares for the time being. Look for things to be relatively quiet for
      the next few days unless something unexpected happens, which is always
      a possibility.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 69
      SFI : 112
      A index : 13
      K index : 3

      Solar wind speed : 547.8 km/sec
      Solar wind density : 4.7 protons/cc
      Solar wind pressure : 2.3 nPa

      IMF : 6.6 nT
      IMF Orientation : 4.4 nT South

      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 low for the next three days.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at quiet to unsettled levels
      for the next three days.

      Recent significant solar flare activity :
      None
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