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Solar Activity Report for 4/07/05

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  • David
    The Earth is emerging from a high-speed solar wind stream coming from a coronal hole. This one actually managed to touch off some activity, and aurora were
    Message 1 of 1 , Apr 7 11:31 PM
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      The Earth is emerging from a high-speed solar wind stream coming from
      a coronal hole. This one actually managed to touch off some activity,
      and aurora were spotted in the high latitudes of Canada and Alaska, as
      can be seen here.
      http://www.spaceweather.com/aurora/images2005/05apr05/hall1.jpg .
      It's been awhile since we've seen any aurora! There are three sunspot
      regions visible at thr present time, although none appear to have the
      potential for producing a significant flare. However, there is yet
      another coronal hole that is rotating into an Earth-pointing position,
      and we should start seeing the solar wind speed pick back up along
      about the 8th.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 49
      SFI : 88
      A index : 9
      K index : 1

      Solar wind speed : 386.1 km/sec
      Solar wind density : 1.8 protons/cc
      Solar wind pressure : 0.4 nPa

      IMF : 3.0 nT
      IMF Orientation : 1.2 nT South

      GOES-12 Background X-ray Flux level : A6

      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 to low.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be quiet to unsettled on 08 and
      09 April. On 10 April, quiet to active conditions are expected due to
      the effects of a recurrent coronal hole high speed stream.

      Recent significant solar flare activity :
      None
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