EDIT: In my total lack of foresight (read that as very little thought), I failed to remember I was looking at 5 day averages.... therefore this test is over. On to a new one.
I thought I'd run a little test to find out how reliable the new GFS Ensembles are this winter, so I'm collecting maps beginning 7 days out. I have the temp anomalies, 850 temp anomalies, and 500 mb anomalies, all 5 day averages for the period from the 8th through the 13th. Because they are 5 day averages, the changes "should" be slow to show up. I'll be adding to this daily, and the next go around I'll be looking at the operational runs as well to see how those compare. These start with the 12Z runs from today, Thursday, January 7th.