[aprssig] unusual Terrestrial APRS propagation

[Ev Tupis]

Tropospheric inversion layer.  Big time.
There are 1000km QSO's taking place on 144, 222 and 432 MHz since yesterday.
Ev, W2Ev

      From: Nagi Punyamurthula via aprssig <aprssig at tapr.org>
 To: TAPR APRS Mailing List <aprssig at tapr.org> 
 Sent: Monday, August 31, 2015 7:39 AM
 Subject: [aprssig] unusual Terrestrial APRS propagation
   
 <!--#yiv6619373568 _filtered #yiv6619373568 {font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv6619373568 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;}#yiv6619373568 #yiv6619373568 p.yiv6619373568MsoNormal, #yiv6619373568 li.yiv6619373568MsoNormal, #yiv6619373568 div.yiv6619373568MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv6619373568 a:link, #yiv6619373568 span.yiv6619373568MsoHyperlink {color:#0563C1;text-decoration:underline;}#yiv6619373568 a:visited, #yiv6619373568 span.yiv6619373568MsoHyperlinkFollowed {color:#954F72;text-decoration:underline;}#yiv6619373568 span.yiv6619373568EmailStyle17 {font-family:"Calibri", sans-serif;color:windowtext;}#yiv6619373568 .yiv6619373568MsoChpDefault {font-family:"Calibri", sans-serif;} _filtered #yiv6619373568 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv6619373568 div.yiv6619373568WordSection1 {}-->I have been monitoring the VHF APRS propagation map the last few days and have been noticing an unusually long range propagation.  Very rarely does my APRS sysop station hear others beyond the MN, IA, SD, ND, KS, WI, IL states – even w/ some previously experienced solar flares/storms.  Anyone has any hints on what might be causing this out of norm propagation.       I was monitoring http://SolarHam.com/ for some info and found this from 2 days ago.        Thanks    73, N0AGI-Nagi  http://N0AGI.com/          
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