May 31, 2015
A backdoor cold front triggered showers and thunderstorms with heavy downpours that caused flash flooding across sections of the Raritan Valley in central New Jersey during the evening of the 31st. Doppler Radar estimates as well as Skywarn spotter reports showed that storm total estimates reached between 2.5 and 5.0 inches across parts of the northern halves of Hunterdon, Somerset and Middlesex Counties.
Source: NOAA National Weather Service Storm Events Database (event 578656). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Somerset County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.