Running 72 hour snowfall map, you can use the slider to adjust time increments
https://www.weather.gov/source/crh/snowmap.html
Snowfall analysis map, uses those totals to create a graphical display of contours of snowfall without individual totals, usually lags behind a little bit
https://www.weather.gov/crh/snowfall
Gridded snowfall analysis from NOHRSC, you can see 6-72 hours here as well and seasonal back to 2008
https://www.nohrsc.noaa.gov/snowfall/
On weathertap? if you are on the radar home page just click on the northeast and then click again and youll get that zoom. use the left side panel to pan to adjcent images. ill text you shortly but here is the exact link
https://www.weathertap.com/radar/state/nj/normal
Totals really starting to pile up in NJ