the Jan 2019 storm comes into mind because it went from a 2-4 inch storm 36 hours before the event and kept increasting amounts every run up until gametime and even then...no model had us getting a foot lol
yikes the surface maps are very similar no? i think Dulles got 9-10 inches from this but there was a day of non stop snizzle which was awesome
http://www.raymondcmartinjr.com/weather/2004/05-Dec-03-SurfaceMaps.html
TT has the Canadien Precip/surface panels. Beautiful!
https://www.tropicaltidbits.com/analysis/models/?model=gem®ion=us&pkg=mslp_pcpn&runtime=2021012812&fh=24