Aug 21, 2011
A series of thunderstorms with heavy rain from the late afternoon through the evening on the 21st caused poor drainage and stream flash flooding in southern Monmouth County and northern Ocean County. Runoff from the heavy rain then caused some river flooding into the 23rd in central New Jersey Event precipitation totals averaged two to five inches, highest in Monmouth and Ocean Counties. |||The Millstone River at Griggstown was above its 10 foot flood stage from 402 a.m. EDT on the 22nd throug
Source: NOAA National Weather Service Storm Events Database (event 346410). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Monmouth County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.