I could be wrong on this - but was true years back as far as upper air ballon data. Buy only 12Z and 00Z hold up to date data on current upper air soundings. At least the most current ones. I know during hurricanes and all - they throw everything up there for even support at 06/18Z,,, so (unless I'am wrong) be careful with 6 and 18Z runs if they don't have upper air soundings. You watch models and the concurrent weather enough over 27yr's, you do notice a difference at times.

I made a trip across the country for new years! Was worried I was going to miss out on something big but I was good! Have another trip at the end of February though.

Could someone post the 18z GFS for points further east. Thanks!

wonder what they'll put in place to put the GFS and CFS out to pasture?