John,
I know this is a long way out, but seeing it was kind of interesting (at least to me - Had I not gone on to be a ME, I was going to Purdue for Meteorology)...On the 12 UTC GFS Run (gfs namer, 20130218 12 UTC, 850_temp_mslp_precip), starting at about the 216hr mark, there is a Low Pressure...