Jul 3, 2020
A backdoor cold front slowly sank across the area through the day, eventually settling just southwest of the region by evening. Moderate to strong instability ahead of this front aided in the development of showers and thunderstorms across northeast New Jersey during the early evening hours. The ASOS at Newark Airport reported 1.11 inches of rain, while a COOP observer in Harrison reported 1.16 inches. Most of this rain fell in less than an hour, resulting in isolated flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 904703). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Hudson County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.