call that "tropospheric ducting" and like you said, basically and temperature inversion from cool to warm. Just after a servere thunderstorm or after/durring a tornado warning (when the sky is green) I can DX stations from michican like they are out of chicago. I remember pulling in benton harbor, MI crystal clear last year. Must have been 10PM and milwaukee channel 4 was near perfect too. I also had a local station that broadcast near university of Illinois channel 12 or 8 really clear too. Quad cities came in pretty nice. I can pick up the quad cities very snowy on channel 6 under normal conditions at night. Its fun expecially with a rotor.
Heres a link to a troposheric ducting forcast:
http://home.cogeco.ca/~dxinfo/tropo.html
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Last edited by drh4683; 02-17-2005 at 08:52 PM.
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