Jul 22, 2020
Following a warm frontal passage in the morning, an increasingly hot and humid airmass built across the area during the day, with precipitable water values rising above 2 inches by evening based on the 00Z sounding from Upton, NY. A line of convection moving into the region from the west during the early evening hours resulted in flash flooding across portions of urban northeast New Jersey. CoCoRaHS observers reported 1-2 inches of rain across portions of central Union and extreme southern Essex
Source: NOAA National Weather Service Storm Events Database (event 911275). 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.