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Solar Activity Report for 9/14/01

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  • b1blancer_29501
    A series of mild shock waves from the multiple CME s earlier in the week impacted Earth s magnetosphere Thursday and Friday and managed to produce some aurora!
    Message 1 of 702 , Sep 14, 2001
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      A series of mild shock waves from the multiple
      CME's earlier in the week impacted Earth's
      magnetosphere Thursday and Friday and managed to produce some
      aurora! See this link for some pics of aurora taken in
      Michigan.
      <a href=http://www.spaceweather.com/aurora/gallery_13sep01.html target=new>http://www.spaceweather.com/aurora/gallery_13sep01.html</a><br>Sunspot groups 9608, 9610, and 9616 still have the
      potential of producing a major flare. A coronal hole is now
      crossing the sun's central meridian. If we receive any
      solar wind gusts from it, they will likely arrive
      around the 16th.<br><br>The current solar and
      geomagnetic conditions are :<br><br>NOAA sunspot number :
      216<br>SFI : 237<br>A index : 9<br>K index : 3<br><br>Solar
      wind speed : 503.9 km/sec<br>Solar wind density : 4.5
      protons/cc<br>Solar wind pressure : 1.9 nPa<br><br>IMF : 10.0
      nT<br>IMF Orientation : 7.3 nT North<br><br>Conditions for
      the last 24 hours :<br>Solar activity was moderate.
      The geomagnetic field was quiet to
      active.<br><br>Forecast for the next 24 hours :<br>Solar activity will be
      low to moderate. The geomagnetic field will be quiet
      to active.<br><br>Solar activity forecast :<br>Solar
      activity is expected to be low to moderate. There is a
      chance for a major flare from Regions 9608, 9610, and
      9616.<br><br>Geomagnetic activity forecast :<br>The geomagnetic field is
      expected to be quiet to unsettled. Active conditions are
      possible on 16 September as a result of the flares on 12
      September<br><br>Recent solar flare activity :<br>14-Sep-2001 2150Z M3.7
    • b1blancer_29501
      On Feb 28th, the Interplanetary Magnetic Field swung to a strong south-pointing orientation. That, coupled with an elevated solar wind speed and density,
      Message 702 of 702 , Mar 1, 2002
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        On Feb 28th, the Interplanetary Magnetic Field
        swung to a strong south-pointing orientation. That,
        coupled with an elevated solar wind speed and density,
        triggered a G-1 class geomagnetic storm. The result was
        some high latitude aurora. See this link for a
        photgraph of aurora observed over Quebec :
        <a href=http://www.spaceweather.com/aurora/images/01mar02/Moussette2.jpg target=new>http://www.spaceweather.com/aurora/images/01mar02/Moussette2.jpg</a> . As of right now, there are 3 sunspot regions,
        namely 9839, 9842, and 9845, that appear to be capable
        of producing M-class flares. Regions 9839 and 9842
        are close to rotating out of view over the western
        limb of the solar disk. Sunspot region 9845, however,
        is close to the sun's central meridian. A rather
        large coronal hole is also approaching the sun's
        central meridian, and coming into an Earth-pointing
        position. High speed colar wind gusts are likely around the
        first of next week.<br><br>The current solar and
        geomagnetic conditions are :<br><br>NOAA sunspot number :
        153<br>SFI : 188<br>A index : 10<br>K index : 1<br><br>Solar
        wind speed : 372.3 km/sec<br>Solar wind density : 4.4
        protons/cc<br>Solar wind pressure : 1.1 nPa<br><br>IMF : 8.4
        nT<br>IMF Orientation : 0.7 nT North<br><br>Conditions for
        the last 24 hours : <br>Solar activity was low. The
        geomagnetic field was quiet to unsettled. Stratwarm Alert
        exists Friday.<br><br>Forecast for the next 24 hours
        :<br>Solar activity will be low to moderate. The geomagnetic
        field will be quiet to unsettled.<br><br>Solar Activity
        Forecast :<br>Solar activity is expected to be low to
        moderate for the next three days. Region 9845 is a
        possible source for isolated M-class
        flares.<br><br>Geomagnetic activity forecast :<br>Geomagnetic field activity
        is expected to be mainly quiet to unsettled, until
        the onset of high speed stream effects from a
        recurrent coronal hole begin to develop by day three of the
        forecast period. Isolated active conditions are
        anticipated thereafter.<br><br>Recent significant solar flare
        activity :<br>None
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