On Wednesday, December 17, 2014 2:36:35 PM UTC-5, Burt Compton - Marfa Gliders, west Texas wrote:
More commonly called the Marfa Dry Line, here is the website I use for today's current dry line location near Marfa in southwest Texas: http://weather.unisys.com/surface/sf...de&inv=0&t=cur

The Marfa Dry Line occurs year-round. It is overhead today, with cumulus just to the north of Marfa visually indicating its presence. The website also shows a fairly tight gradient. Launch the fleet!

Thanks for the additional info Burt. where are you seeing it located on that map? is it the region right around marfa where you see several relatively closely spaced dewpoint lines oriented approximately north and south?