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Solar Activity Report for 4/2/03

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  • David
    ** Aurora Watch In Effect ** Although the solar wind speed is slowing down, it s still fast enough to warrant the mention of the possibility of aurora for yet
    Message 1 of 1 , Apr 2 8:44 PM
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      ** Aurora Watch In Effect **

      Although the solar wind speed is slowing down, it's still fast enough
      to warrant the mention of the possibility of aurora for yet another
      night, so an aurora watch remains in effect. Aurora have been spotted
      for the last 5 nights in a row in the hgher latitudes of Alaska,
      Canada, and northern Europe, with occasional sightings as far south as
      Wisconsin and Michigan. See this link for some more beautiful aurora
      pictures :
      http://science.nasa.gov/spaceweather/aurora/gallery_01mar03_page3.htm
      . This might be the last day for aurora for a time, as the solar wind
      speed is projected to keep its current downward trend. The sunspot
      number is higher than it's been in a while, and the solar disk is
      dotted with sunspots, mainly on the western half. While none of the
      sunspot regions visible are likely to fire off a major flare, two or
      three of them have at least an outside chance of producing an M-class
      flare.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 189
      SFI : 158
      A index : 21
      K index : 3

      Solar wind speed : 446.5 km/sec
      Solar wind density : 3.9 protons/cc
      Solar wind pressure : 1.6 nPa

      IMF : 5.0 nT
      IMF Orientation : 1.6 nT North

      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. There is a small chance for an
      isolated M-Class flare from Regions 321 (N07W40), 323 (S07W56), 324
      (S12W21), or 325 (N10E04).

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at quiet to minor-storm levels
      due to the continuing high speed stream, and potential for southward
      Bz. The high speed stream should diminish tomorrow, and the
      geomagnetic field should end the day at quiet levels.

      Recent significant solar flare actviity :
      None
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