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1734Solar Activity Report for 3/31/03

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  • David
    Mar 31, 2003
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      ** G-1 Geomagnetic Storm In Progress **
      ** Aurora Watch In Effect **

      As per the forecast, the solar wind speed remains elevated, and a G-1
      class geomagnetic storm is in progress. Skywatchers should keep an
      eye out for aurora tonight, especially in the higher latitudes. See
      this link for some really beautiful aorora pictures captured over the
      last several days :
      . The geomagnetic storm level made it up to the G-2 (moderate)
      category earlier today. The current conditions should persist for at
      least the next two or three days, so look for the solar wind speed to
      stay elevated throughout the period. More geomagnetic storm events
      are also a likelyhood. There are numerous sunspot regions visible on
      the solar disk tonight. Of the bunch, regions 319 and 33 look to have
      the best flare generating potential.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 165
      SFI : 160
      A index : 26
      K index : 4

      Solar wind speed : 534.5 km/sec
      Solar wind density : 2.7 protons/cc
      Solar wind pressure : 1.2 nPa

      IMF : 7.6 nT
      IMF Orientation : 7.0 nT North

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been moderate. Geomagnetic
      storms reaching the G2 level occurred.

      Forecast for the next 24 hours :
      Space weather for the next 24 hours is expected to be minor.
      Geomagnetic storms reaching the G1 level are expected.

      Solar activity forecast :
      Solar activity is expected to be low. There is a small chance for a
      low M-class flare from Region 323.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at unsettled to minor storm
      levels. Disturbed periods due to high speed stream effects will
      continue for the next 2-3 days.

      Recent significant solar flare activity :