Aug 22, 2022
Slow moving thunderstorms that developed along a warm front on August 22nd produced heavy rainfall and localized flash flooding in New Jersey. The thunderstorms developed in an environment with PWATs increasing from 1.6 to 1.9 inches and CAPE values around 2000 J/kg. The storms quickly dropped 1 to 2 inches of rainfall in less than 90 minutes over portions of urban Northeast New Jersey that resulted in localized flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 1052847). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Union County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.