Pretty much everything that falls here on out will accumulate. The Euro and HRRR says that Rockland still gets 0.20-0.30" liquid over the next 6 hours. That's going to build up fast especially considering the light intensity.
The official forecast calls for freezing rain and sleet to linger into the evening. If they had closed schools at say noon and the temperatures were a degree or two colder it would have been a big mistake.
You're right it's no the same thing. Point is the HRRR still has about 0.3" of QPF coming. Expect precip to linger for the next several hours while temps continue to fall up here.