It's bound to happen sooner or later with these coastals. Mabey the GFS is on to something. DT said this last night:
Wxrisk.com
*** ALERT SEVERE LONG DURATION COASTAL LOW INCREASINGLY LIKELY SUNDAY 12/17 - MONDAY 12/18/ TUES 12/19*** /1
There is no doubt now that we are looking at a major East Coast Nor'easter on Sunday and Monday that is going to last in some places more than 48 hours in terms of its duration… and will bring at least another 2 to 5 inches in total rainfall from Georgia to Maine. The truth of the matter is that this event would be a huge East Coast snowstorm with only a few small changes to the setup.
What I find encouraging about this is that unlike the last two or three years… in this late Autumn and early Winter e are getting frequent LOW pressure areas in the southern jet stream… coming out of the Deep South and the Gulf Coast and coming up the East Coast itself. So while you may be disappointed that this is actual rain versus Snow it is significant in that we are getting these Southern LOW pressure systems.