Lack of Ridging Upstream ruins any snow chances

12z/18z model suite cycles have come into better agreement that the clipper for the 19-20th time period will be absorbed into the main trough of the system on the 16-17th.  Lack of any appreciable upstream ridging destroys a downstream trough and is displaced to the east as a strong -NAO block develops slowing down the progress of the first shortwave.  With the lack of ridging over the western US, the shortwave trough with the associated clipper outruns upper level support stationed over the central US and until this begins to break down, perhaps as early as Thanksgiving week, snow prospects will be few and far in between.  Have a good night and I will have an update on the longer range tomorrow.