I think it's more of the pattern look. I was shocked to see the EPS changes starting so early and growing so large in the 6-10 day. Not even a sizeable change...just a complete flip out west.
Meanwhile, a rare SW-WSW flow may give the islands and outer cape some ocnl mixed ra/sn or perhaps straight shsn tomorrow into Sunday. That's pretty cool.
Metal can conduct heat or radiate heat away from itself. It's why car surfaces can get frost on them when the air temp is a few degrees above freezing. That would only occur at night obviously.
I thought the GFS did fairly well inside day 2 or so. It did sort of show more of a weaker and disorganized look. Euro was dumping over a foot from PF to northern NH. I thought Euro was too wet at first, then it went dry here for whatever reason.