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Solar Activity Report for 4/18/05

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  • David
    All is quiet for the moment, but the Earth should be moving into a high-speed solar wind stream coming from a complex of small coronal holes within the next 24
    Message 1 of 1 , Apr 18 8:55 PM
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      All is quiet for the moment, but the Earth should be moving into a
      high-speed solar wind stream coming from a complex of small coronal
      holes within the next 24 hours. Aurora in the higher latitudes are a
      possibility. There are three sunspot regions visible, but none of
      them look to have the potential of generating a significant flare.
      One of them did kick off a C-5 flare on the 17th, which is actually
      the strongest we've seen in awhile.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 44
      SFI : 81
      A index : 13
      K index : 2

      Solar wind speed : 369.4 km/sec
      Solar wind density : 3.4 protons/cc
      Solar wind pressure : 1.1 nPa

      IMF : 4.2 nT
      IMF Orientation : 3.3 nT South

      GOES-12 Background X-ray Flux level : A4

      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 with
      possible isolated active conditions due to the effects of a coronal
      hole high speed stream moving into geoeffective position.

      Recent significant solar flare activity :
      None
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