Well, where they *thought* they went wrong, anyway... (I didn't read it myself as I avoid them like the plague, but I'm told by other meteorologists who did read it, that the explanation was not really correct... but again, that's heresay)
Granted he just wrote " -1" " on his map, but a cursory examination of his map would suggest that its really "up to 1 inch", and the 1" line is actually over ABE. That said, I still don't see how they get much of anything. Certainly his forecast snow map is NOT supported by the 0Z GFS or NAM or the 12Z Euro.
That seemed to be a better surge of cold advection than this one. This system is stronger and holds it up. NW of I-95 it will probably make it... along I-95 itself...
I have placed a topic in the general forum regarding the revised NWS snow measurement guide...
http://www.americanwx.com/bb/index.php/topic/41853-new-nws-snow-measurement-guide/
Here's a good essay which suggests that the situation in Meteorology is not at all dissimilar to what's going on in most other college majors...
http://www.cracked.com/blog/5-ways-we-ruined-occupy-wall-street-generation/
I quoted the 5, 4 and 3 below as they are related to this discussion topic...