The 12Z GFS develops a deep secondary low to the SW next Thursday which then
runs slowly north
http://217.160.75.104/pics/Rtavn1323.gif
900mb winds VT 06Z Fri
http://expert.weatheronline.co.uk/cg...534c3f9 cc2d7
the earlier 00Z and 06Z runs anchored it to the SW.
Interestingly, neither the MetO GM nor ECMWF appear particularly keen to
develop this feature.
Jon.