Sep 18, 2018
A tropical airmass associated with the remnants of Hurricane Florence combined with an approaching cold front to produce waves of showers and thunderstorms that resulted isolated flash flooding in northeast New Jersey. The precipitable water value on the 8am sounding from Upton, New York was 2.10, which represents a daily maximum value based on the Storm Prediction Center's sounding climatology.
Source: NOAA National Weather Service Storm Events Database (event 786331). 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.