[EIDXA] Fwd: Topband: Possible top band anomolies

[Tom Vavra]

----------  Forwarded Message  ----------

Subject: Topband: Possible top band anomolies
Date: Wednesday 07 March 2012 13:52
From: N7DF <n7df at yahoo.com>
To: 160 reflector <topband at contesting.com>

 At 00:28 UTC on March 7 a major solar flare (X5 level) launched a Coronal
 Mass Ejection toward earth. It is expected to begin impacting earth's
 magnetosphere late in the day (UTC) on march 8 or early on March 9.  If the
 interplanetary magnetic field is in a south oriented position during
 the period of its impact, the CME may cause extremely high levels of low
 altitude ionospheric refraction.  The field may begin "ringing" as the CME
 approaches.  In the past this has produced very strong but short duration
 propagation effects on low frequency propagation. Be prepared to stay up all
 night to see what happens on the top band.  A hollow sounding effect on
 atmospheric noise will alert you as things begin to get weird.
 _______________________________________________