Here is what I think happened. Two day earlier it did look wet, especially nrn MA and western MA. However, and I know some discussed it here....many times these warm sectors get a little more cleaner as you approach T=0. There was nothing to really force rain well ahead of the front except maybe in the higher terrain. Going into the 30th it appeared to really dry out even in those areas. So, the pattern recognition of things trending a little drier was already occurring. I think a few rip 'n readers still kept pimping out rain shown on some guidance. And then the winds came into play...although that was supposed to be worst to the south and at night anyways. So they postponed on all that information, but I don't think the whole thing was communicated well to the decision makers.